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Troubleshooting

SiEN04-306D

124

Service Diagnosis

Troubleshooting

Check No.4

Refer to P.139

Check No.6

Refer to P.141

Check No.7

Refer to P.142

Check No.9

Refer to P.143

(R2855)

Caution

Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.

Replace the fan motor.
Repair the connector or fan
motor lead wires.

Replace the heat exchanger
thermistor.

Replace PCB.

Replace the electronic
expansion valve or coil.
Replace the PCB.

Change the air outlet grille
position.
Change the installation
location.
Clean the heat exchanger.

Check the installation space.

Check No.9

Outdoor fan check

Judgment

Check No.6
Heat exchanger thermistor check

Judgment

Check No.7

Installation condition

check

Check No.4
Electronic expansion valve check

Abnormal

Normal

Abnormal

Содержание SiEN04-306D

Страница 1: ...Inverter Pair Wall Mounted Type B Series Applied Models zInverter Pair Cooling Only zInverter Pair Heat Pump zNon Inverter Pair Cooling Only zNon Inverter Pair Heat Pump SiEN04 306D...

Страница 2: ...B2VMB RKS71B3VMB RS60B2VMB R22 RKD50BVM RKD50BVMA RKD50BVMT RKD18BVMS RKD60BVM RKD60BVMA RKD60BVMT RKD24BVMS RKD71BVM RKD71BVMA RKD71BVMT RKD28BVMS Heat Pump Indoor Unit R410A FTXS50BVMA FTXS50BVMB AT...

Страница 3: ...uvers and Auto Swing 44 1 3 Fan Speed Control for Indoor Units 45 1 4 Programme Dry Function 46 1 5 Automatic Operation 47 1 6 Thermostat Control 48 1 7 Night Set Mode 49 1 8 INTELLIGENT EYE 50 1 9 HO...

Страница 4: ...04 4 Troubleshooting 107 4 1 Error Codes and Description 107 4 2 Indoor Unit PCB Abnormality 108 4 3 Freeze up Protection Control or High Pressure Control 109 4 4 Fan Motor DC Motor or Related Abnorma...

Страница 5: ...of the Panels and Plates 166 2 2 Removal of the Fan Motor Propeller Fan 170 2 3 Removal of the PCB Electrical Box 174 2 4 Removal of the Reactor 182 2 5 Removal of the Sound Blanket 184 2 6 Removal of...

Страница 6: ...plug socket before disassembling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If it is necessary to supply power to the equipme...

Страница 7: ...e the welder in a well ventilated place Using the welder in an enclosed room can cause oxygen deficiency Warning Be sure to use parts listed in the service parts list of the applicable model and appro...

Страница 8: ...t gas leaks be sure to locate the leak and repair it before charging the refrigerant After charging refrigerant make sure that there is no refrigerant leak If the leak cannot be located and the repair...

Страница 9: ...g and repair it if the equipment is not properly grounded Improper grounding can cause an electrical shock Be sure to measure the insulation resistance after the repair and make sure that the resistan...

Страница 10: ...SiEN04 306D List of Functions 1 Part 1 List of Functions 1 List of Functions 2 1 1 R 410A Series 2 1 2 R22 Series 8...

Страница 11: ...Night Set Mode Horizontal Auto Swing Right and Left Worry Free Reliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Er...

Страница 12: ...g Right and Left Worry Free Reliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan S...

Страница 13: ...Worry Free Reliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan Speed Anticorrosi...

Страница 14: ...y Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan Speed Anticorrosion Treatment of Outdoo...

Страница 15: ...Swing Right and Left Worry Free Reliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto...

Страница 16: ...Auto Swing Right and Left Worry Free Reliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control...

Страница 17: ...t Mode Horizontal Auto Swing Right and Left Worry Free Reliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check...

Страница 18: ...izontal Auto Swing Right and Left Worry Free Reliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort C...

Страница 19: ...orry Free Reliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan Speed Anticorrosion...

Страница 20: ...liability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan Speed Anticorrosion Treatment o...

Страница 21: ...liability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan Speed Anticorrosion Treatment o...

Страница 22: ...SiEN04 306D Specifications 13 Part 2 Specifications 1 Specifications 14 1 1 Cooling Only R 410A Series 14 1 2 Cooling Only R22 Series 18 1 3 Heat Pump R 410A Series 22 1 4 Heat Pump R22 Series 29...

Страница 23: ...ht Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 17 0 19 0 21 Power Consumption Rate...

Страница 24: ...ownward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 20 Power Consumption Rated W 40 40 45 Power Facto...

Страница 25: ...r Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 20 Power Consumption Rated W 40 40 45 Power Factor 96 6 96...

Страница 26: ...of Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 20 0 18 0 18 Power Consumption Rated W 45 40 40 Power Factor 96 4 96 6 96 6 Temperature Control Microcomput...

Страница 27: ...Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 19 0 18 0 17 0 19 0 18 0 21 0 20 0 19 0 21 0 20 0 23 0 22 0 21 0 23 0 22 Power Consumpt...

Страница 28: ...Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 19 0 18 0 17 0 19 0 18 0 21 0 20 0 19 0 21 0 20 0 23 0 22 0 21 0 23 0 22 Power Consumption Rated W 40 45 50 Power Factor 95 7 96...

Страница 29: ...le Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current A 0 19 0 21 0 23 Power Consumption W 40 45 50 Power Factor 95 7 97 4 98 8 Temperature Control Microcompu...

Страница 30: ...Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current A 0 21 0 23 0 24 Power Consumption W 45 5...

Страница 31: ...ol Right Left Horizontal and Downward Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 17 0 17 0 19 0 19 Power Co...

Страница 32: ...ontrol Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 21 0 21 Power Consumption Rated W 50 50 Power Factor 99 2 99 2 Temperature Control Microc...

Страница 33: ...Left Horizontal and Downward Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 20 0 18 0 20 Power Consumptio...

Страница 34: ...Left Horizontal and Downward Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 20 0 22 0 20 0 22 Power Consumptio...

Страница 35: ...Direction Control Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 20 Power Consumption Rated W 40 45 Power Factor 96 6 97 8 Temperature Co...

Страница 36: ...Direction Control Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 20 Power Consumption Rated W 40 45 Power Factor 96 6 97 8 Temperature Con...

Страница 37: ...dew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 40 Power Factor 96 6 96 6 96 6 96 6 Temperature Control Microcomputer Control M...

Страница 38: ...ble Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 19 0 18 0 17 0 19 0 18 0 19 0 18 0 17 0 19 0 18 0 21 0 20 0 19 0 21 0 20 0 21 0 20 0 19 0 21 0 20 Power Consumption...

Страница 39: ...rd Air Filter Removable Washable Mildew Proof Running Current Rated A 0 23 0 22 0 21 0 23 0 22 0 23 0 22 0 21 0 23 0 22 Power Consumption Rated W 50 50 Power Factor 98 8 98 8 99 2 98 8 98 8 98 8 98 8...

Страница 40: ...d Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current A 0 19 0 19 0 21 0 21 Power Consumption W 40 40 45 45 Power Factor 95 7 95 7 97 4 97 4 Temperature...

Страница 41: ...Horizontal and Downward Air Filter Removable Washable Mildew Proof Running Current A 0 23 0 23 Power Consumption W 50 50 Power Factor 98 8 98 8 Temperature Control Microcomputer Control Dimensions H...

Страница 42: ...ft Horizontal and Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 92 6 92 6 Temperature Control Microcomputer Control...

Страница 43: ...Horizontal and Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 30 0 27 Power Consumption Rated W 70 64 Power Factor 98 2 98 8 Temperature Control Microcomputer Control Di...

Страница 44: ...N04 306D Printed Circuit Board Connector Wiring Diagram 35 Part 3 Printed Circuit Board Connector Wiring Diagram 1 Printed Circuit Board Connector Wiring Diagram 36 1 1 Indoor Unit 36 1 2 Outdoor Unit...

Страница 45: ...ntralized control HA 5 S26 S37 Connector for buzzer PCB 6 S27 S29 S36 Connector for control PCB 7 S28 Connector for signal receiver PCB 8 S32 Connector for heat exchanger thermistor 9 S35 Connector fo...

Страница 46: ...nector Wiring Diagram 37 PCB Detail PCB 1 Control PCB indoor unit PCB 2 Signal Receiver PCB PCB 3 Buzzer PCB PCB 4 Display PCB PCB 5 Intelligent Eye sensor PCB S1 V1 FU1 S6 S8 S26 R2860 S28 S32 JC JB...

Страница 47: ...7 S51 S101 Connector for service monitor PCB 8 S70 Connector for fan motor 9 S80 Connector for four way valve coil 10 S90 Connector for thermistors outdoor air heat exchanger and discharge pipe 11 S91...

Страница 48: ...uit Board Connector Wiring Diagram 39 PCB Detail PCB 1 Control PCB outdoor unit E AC1 FU2 3 15A H1 H2 S32 S33 S71 S31 S91 R2865 S40 S20 S90 S101 S51 S80 S10 AC2 PCB 2 Power Supply PCB PCB 3 Service Mo...

Страница 49: ...Printed Circuit Board Connector Wiring Diagram SiEN04 306D 40 Printed Circuit Board Connector Wiring Diagram MID SPM S34 S72 R2868 S70 FU201 3 15A R2869 CN14 CN11 L1 L2...

Страница 50: ...Function of Main Structural Parts 55 2 1 Function of Thermistor 55 3 Control Specification 57 3 1 Mode Hierarchy 57 3 2 Frequency Control 58 3 3 Controls at Mode Changing Start up 60 3 4 Discharge Pip...

Страница 51: ...2 Names of Parts 75 2 3 Preparation before Operation 78 2 4 AUTO DRY COOL HEAT FAN Operation 81 2 5 Adjusting the Air Flow Direction 83 2 6 POWERFUL Operation 85 2 7 OUTDOOR UNIT SILENT Operation 86...

Страница 52: ...xplains the conversion principle Drawing of Inverter The following drawing shows a schematic view of the inverter principle Phase Description 1 The supplied AC power source is converted into the DC po...

Страница 53: ...condition with a small room temperature variation Energy saving heating and cooling Once the set temperature is reached the energy saving operation enables to maintain the room temperature at low pow...

Страница 54: ...ow that guarantees a comfortable air distribution Auto Swing The following table explains the auto swing process for heating cooling dry and fan Outline of 3 D Airflow Alternative repetition of vertic...

Страница 55: ...g defrost operation 3 In time of thermostat OFF the fan rotates at the following speed Cooling The fan keeps rotating at the set tap Heating The fan keeps rotating at LLL tap Automatic Air Flow Contro...

Страница 56: ...set by the microcomputer is divided into two zones Then the unit operates in the dry mode with an appropriate capacity for each zone to maintain the temperature and humidity at a comfortable level Roo...

Страница 57: ...etting temperature plus correction value correction value cooling 0 deg heating 2 deg 3 Operation ON OFF point and mode switching point are as follows 1 Heating Cooling switching point Room temperatur...

Страница 58: ...difference is above the zone C after being in the zone A The system resumes from defrost control in any zones except A The operation turns on in any zones except A The monitoring time has passed whil...

Страница 59: ...ting for economical operations This prevents excessive heating in winter and excessive cooling in summer to ensure comfortable sleeping conditions and also conserves electricity Cooling Operation Heat...

Страница 60: ...crocomputer doesn t have a signal from the sensor in 20 minutes it judges that nobody is in the room and operates the unit in temperature shifted 2 C from the set temperature Cooling 2 C higher Dry 1...

Страница 61: ...es so as to prevent this phenomena After this 40 minutes the prohibition of the thermostat off is cancelled and it can realize the conditions to conduct thermostat off depending on the room temperatur...

Страница 62: ...n becomes effective The HOME LEAVE button is ineffective in dry mode and fan mode 2 Details of Function A mark representing HOME LEAVE is indicated on the liquid crystal display of the remote control...

Страница 63: ...of twenty minutes Ex Powerful operation in cooling mode Operation mode Fan speed Target set temperature Cooling H tap 90 rpm 18 C Dry Dry rotating speed 50 rpm Normally targeted temperature in dry ope...

Страница 64: ...izing Function This filter incorporates the benefits the Air Purifying Filter and Photocatalytic Deodorizing Filter in a single unit Combining the two filters in this way increases the active surface...

Страница 65: ...ge pipe If the temperature of discharge pipe used in place of the inner temperature of the compressor rises abnormally the operating frequency drops or the operation must be halted 2 The discharge pip...

Страница 66: ...oling operation B Discharge Pipe Thermistor 1 The discharge pipe thermistor is used to control the discharge pipe If the temperature of discharge pipe used in place of the inner temperature of the com...

Страница 67: ...d cooling including drying Note Unless specified otherwise an indoor dry operation command must be regarded as cooling operation Air conditioner control mode Forced operating mode Forced cooling for P...

Страница 68: ...freeze prevention defrost 3 Determine lower limit frequency Set a maximum value as an lower limit frequency among the frequency lower limits of the following functions Four way valve operating compens...

Страница 69: ...rom the frequency previously calculated 2 I control If the operating frequency is not change more than a certain fixed time adjust the frequency up and down according to the D value obtaining the fixe...

Страница 70: ...ay of four way valve Energize the coil for 150 sec after unit operation is stopped 3 3 3 Four Way Valve Operation Compensation Outline Heat Pump Only At the beginning of the operation as the four way...

Страница 71: ...e 2 Hz drooping Repeating the above drooping continues until the current rushes on the drooping zone without change In the unchanged zone the frequency limit will remain In the return reset zone the f...

Страница 72: ...ating Peak cut Control Outline Heat Pump Only During heating operation the signals being sent from the indoor unit allow the operating frequency limitation and prevent abnormal high pressure The signa...

Страница 73: ...Operation When the outdoor air temperature is lower than 37 C the fan tap must be set to L 2 When Heating Operation When the outdoor air temperature is higher than 4 C the fan tap must be turned to L...

Страница 74: ...exchanger temperature must be more than its fixed value when finishing Detail Conditions for Starting Defrost The starting conditions must be made with the outdoor air temperature and heat exchanger t...

Страница 75: ...ischarge pipe temperature control Detail The followings are the examples of control which function in each mode by the electronic expansion valve control R2833 Fully closed when power is turned ON Ope...

Страница 76: ...3 12 6 Disconnection of the Discharge Pipe Thermistor Outline Detect a disconnected discharge pipe thermistor by comparing the discharge pipe temperature with the condensation temperature If any is d...

Страница 77: ...scharge pipe temperature from the indoor and outdoor heat exchanger temperature and adjust the electronic expansion valve opening so that the actual discharge pipe temperature become close to that tem...

Страница 78: ...must be regarded as gas insufficient In addition to such conventional function if the discharge temperature is higher than the target discharge pipe temperature and the electronic expansion valve is f...

Страница 79: ...ot abnormal and not in the 3 minute stand by mode 2 The operating mode of the outdoor unit is the stop mode 3 The forced operation is ON The forced operation is allowed when the above and conditions a...

Страница 80: ...o 20 C or lower the operation will stop If the outdoor temperature rises the operation will start again Caution 1 If the outdoor unit is installed where the heat exchanger of the unit is exposed to di...

Страница 81: ...ever method of using it In order to meet this expectation of the users giving sufficient explanations taking enough time can be said to reduce about 80 of the requests for servicing However good the i...

Страница 82: ...th any flame as of gas heaters kerosene heaters or gas range If the air conditioner is not cooling heating properly the refrigerant may be leaking so call your dealer When carrying out repairs accompa...

Страница 83: ...modeling To avoid oxygen deficiency ventilate the room sufficiently if equipment with burner is used together with the air conditioner Before cleaning be sure to stop the operation turn the breaker of...

Страница 84: ...SiEN04 306D Instruction System Configuration 75 4 2 Names of Parts Indoor Unit the illustration shows a 50 class unit Main unit control panel...

Страница 85: ...lamp red Lights up when you use HOME LEAVE Operation page 16 14 Indoor Unit ON OFF switch Push this switch once to start operation Push once again to stop it The operation mode refer to the following...

Страница 86: ...t changes the temperature setting 6 ON OFF button Press this button once to start operation Press once again to stop it 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN page...

Страница 87: ...ong time take the batteries out We recommend replacing once a year although if the remote control display begins to fade or if reception deteriorates please replace with new alkali batteries Using man...

Страница 88: ...nit 2 Fix the holder to a wall a pillar or similar location with the screws procured locally 3 Place the remote control in the remote control holder About remote control Never expose the remote contro...

Страница 89: ...electricity even while it is not operating If you are not going to use the air conditioner for a long period for example in spring or autumn turn the breaker OFF Use the air conditioner in the follow...

Страница 90: ...ton advances the mode setting in sequence AUTO DRY COOL HEAT FAN FTKS FTXS 2 Press ON OFF button The OPERATION lamp lights up To stop operation 3 Press ON OFF button again Then OPERATION lamp goes off...

Страница 91: ...l parts of the room After the start of heating operation it takes some time before the room gets warmer In heating operation frost may occur on the outdoor unit and lower the heating capacity In that...

Страница 92: ...splayed on the LCD 2 When the flaps have reached the desired position press SWING button once more The flap will stop moving To adjust the vertical blades louvers 3 Press SWING button is displayed on...

Страница 93: ...ging range depends on the operation mode See the figure Three Dimensional 3 D Airflow Using three dimensional airflow circulates cold air which tends to collected at the bottom of the room and hot air...

Страница 94: ...operation there are some functions which are not available To cancel POWERFUL operation 2 Press POWERFUL button again TEMP ON OFF POWERFUL HOME LEAVE MODE TIMER FAN SILENT SWING ON CANCEL OFF O N SENS...

Страница 95: ...SILENT operation 2 Press SILENT button Note on OUTDOOR UNIT SILENT operation This function is available in COOL HEAT and AUTO modes This is not available in FAN and DRY mode POWERFUL operation and OUT...

Страница 96: ...ng HOME LEAVE operation for the first time please set the temperature and air flow rate for HOME LEAVE operation Record your preferred temperature and air flow rate 1 Press HOME LEAVE button Make sure...

Страница 97: ...u will be welcomed by a comfortably air conditioned room Push the HOME LEAVE Operation button again and the air conditioner will adjust capacity to the set temperature for normal operation Set the uni...

Страница 98: ...LIGENT EYE operation 1 Press SENSOR button To cancel the INTELLIGENT EYE operation 2 Press SENSOR button again C TEMP ON OFF POWERFUL HOME LEAVE MODE TIMER FAN SWING SILENT ON CANCEL OFF SWING SENSOR...

Страница 99: ...unit location the speed of passersby temperature range etc The sensor also mistakenly detects pets sunlight fluttering curtains and light reflected off of mirrors as passersby INTELLIGENT EYE operatio...

Страница 100: ...n changes the setting rapidly 3 Press OFF TIMER button again The TIMER lamp lights up To cancel the OFF TIMER operation 4 Press CANCEL button The TIMER lamp goes off When TIMER is set the present time...

Страница 101: ...button changes the setting rapidly 3 3 Press ON TIMER button again The TIMER lamp lights up To cancel ON TIMER operation 4 Press CANCEL button The TIMER lamp goes off To combine ON TIMER and OFF TIMER...

Страница 102: ...n case of washing the grille with water dry it with cloth dry it up in the shade after washing 4 Attach the front grille Align the rotation dowels on the left and right of the front panel with the slo...

Страница 103: ...t come off easily wash them with neutral detergent thinned with lukewarm water then dry them up in the shade It is recommended to clean the air filters every two weeks Air purifying filter with photoc...

Страница 104: ...for several hours on a fine day to dry out the inside Press MODE button and select FAN operation Press ON OFF button and start operation 2 After operation stops turn off the breaker for the room air...

Страница 105: ...OL or DRY mode Moisture in the air condenses into water on the cool surface of outdoor unit piping and drips Mists come out of the indoor unit This happens when the air in the room is cooled into mist...

Страница 106: ...e windows and doors closed Are the air flow rate and the air direction set appropriately Operation stops suddenly OPERATION lamp flashes Are the air filters clean Is there anything to block the air in...

Страница 107: ...poor performance It is recommended to have periodical maintenance by a specialist aside from regular cleaning by the user For specialist maintenance contact the service shop where you bought the air c...

Страница 108: ...HEAT EXCHANGER TEMPERATURE SENSOR C9 FAULTY SUCTION AIR TEMPERATURE SENSOR OUTDOOR UNIT EA COOLING HEATING SWITCHING ERROR E5 OL STARTED E6 FAULTY COMPRESSOR START UP E7 DC FAN MOTOR FAULT E8 OPERATIO...

Страница 109: ...Instruction SiEN04 306D 100 System Configuration...

Страница 110: ...sion Error between Indoor and Outdoor Units 114 4 7 OL Activation Compressor Overload 115 4 8 Compressor Lock 116 4 9 DC Fan Lock 117 4 10 Input Over Current Detection 118 4 11 Four Way Valve Abnormal...

Страница 111: ...ion 2 When a signal transmission error occurs between the indoor and outdoor units In either case conduct the diagnostic procedure described in the following pages Location of Operation Lamp Troublesh...

Страница 112: ...for heat pump model and cooling operation cannot be used when the outside temperature is below 5 C 10 C for Europe Diagnosis with remote control indication 107 Equipment operates but does not cool or...

Страница 113: ...nce shown below and notifies with a long beep Note 1 A short beep and two consecutive beeps indicate non corresponding codes 2 To cancel the code display hold the timer cancel button down for 5 second...

Страница 114: ...ress the TEMP button Press TEMPs or TEMPt and change the digit until you hear the sound of beep or pi pi 3 Diagnose by the sound H pi The number of tens does not accord with the error code H pi pi The...

Страница 115: ...oth numbers of tens and units do not accord with the error code H pi pi The number of tens accords with the error code H beep The both numbers of tens and units accord with the error code 7 Determine...

Страница 116: ...ity 113 C9 Room temperature thermistor abnormality 113 Outdoor Unit E5H OL activation compressor overload 115 E6H Compressor lock 116 E7 DC fan lock 117 E8 Input over current detection 118 EA Four way...

Страница 117: ...ction in approximately 10 continuous seconds Supposed Causes Faulty indoor unit PCB Faulty connector connection Troubleshooting Note Connector Nos vary depending on models Connector connection check n...

Страница 118: ...according to the temperature detected by the indoor unit heat exchanger thermistor Malfunction Decision Conditions High pressure control During heating operations the temperature detected by the indo...

Страница 119: ...umulation on the indoor unit heat exchanger YES YES Is there any short circuit Is it very dirty Is it very dirty Does it conform to the thermistor characteristic chart NO Provide sufficient air passag...

Страница 120: ...tion Decision Conditions When the detected rotation speed does not reach the demanded rotation speed of the target tap and is less than 50 of the maximum fan motor rotation speed Supposed Causes Opera...

Страница 121: ...ck No 01 Check output of fan motor connector Is motor power voltage DC 200V generated Is motor control power voltage DC 15V generated Turn off power supply and disconnect fan motor connector then turn...

Страница 122: ...han 120 ohms or below about 50 C more than 1 860 kohms Note The values vary slightly in some models Supposed Causes Faulty connector connection Faulty thermistor Faulty PCB Troubleshooting Check No 6...

Страница 123: ...al transmission error due to breaking of wire in the connection wires between the indoor and outdoor units wire No 2 Troubleshooting Check No 10 Refer to P 144 Check the outdoor unit s LED A Check the...

Страница 124: ...leshooting Check No 4 Refer to P 139 Check No 5 Refer to P 140 Check No 6 Refer to P 141 Check No 11 Refer to P 144 Insert the thermistor in position Replace the discharge pipe thermistor Replace the...

Страница 125: ...curs 16 times Clearing condition Continuous run for about 5 minutes normal Supposed Causes Compressor locked Troubleshooting Turn off the power Disconnect the harnesses U V and W Inverter checker Part...

Страница 126: ...for about 5 minutes normal Supposed Causes Fan motor breakdown Harness or connector disconnected between fan motor and PCB or in poor contact Foreign matters stuck in the fan Troubleshooting Check No...

Страница 127: ...ing CT input with the compressor running continues for 2 5 seconds CT input Above 20 A The system will be shut down if the error occurs 16 times Clearing condition Continuous run for about 5 minutes n...

Страница 128: ...above its stop level NO YES Normal NO YES Any LED off YES NO Check with the inverter checker Turn off the power and reconnect the harnesses Turn on the power again and get restarted Turn off the power...

Страница 129: ...to see if they function within their normal ranges in the operating mode Malfunction Decision Conditions A following condition continues over 1 minute after operating 10 minutes Cooling dry operation...

Страница 130: ...ower switch before connect or disconnect connector or parts damage may be occurred Four way valve coil disconnected loose YES YES NO Functioning NO Check No 11 Check the refrigerant line Malfunctionin...

Страница 131: ...lowing 60 minute compressor running time total time Supposed Causes Refrigerant shortage Four way valve malfunctioning Discharge pipe thermistor defective heat exchanger or outdoor temperature thermis...

Страница 132: ...ng sensed by the heat exchanger thermistor exceeds the limit Malfunction Decision Conditions Activated when the temperature being sensed by the heat exchanger thermistor rises above 60 C Deactivated w...

Страница 133: ...r the connector or fan motor lead wires Replace the heat exchanger thermistor Replace PCB Replace the electronic expansion valve or coil Replace the PCB Change the air outlet grille position Change th...

Страница 134: ...ected Compressor itself defective Outdoor unit PCB defective Stop valve closed Input voltage out of specification Troubleshooting Check No 13 Refer to P 145 Replace the outdoor unit PCB outdoor unit f...

Страница 135: ...on Conditions The compressor running frequency is below 55 Hz and the CT input is below 0 1 V The input current is also below 1 25 A If this error repeats 4 times the system will be shut down The erro...

Страница 136: ...itch before connect or disconnect connector or parts damage may be occurred Running current as shown at right with relay cable 1 or 2 YES Current guideline 2 sec Time Rising with increasing frequency...

Страница 137: ...ture Malfunction Decision Conditions The thermistor input is above 4 96 V or below 0 04 V with the power on Error J3 is judged if the discharge pipe thermistor temperature is smaller than the condense...

Страница 138: ...temperature thermistor z Outdoor air thermistor Replace the following thermistor z Indoor unit heat exchanger thermistor Replace the outdoor unit PCB Replace the indoor unit PCB R2849 Caution Be sure...

Страница 139: ...in thermistor with the compressor off Malfunction Decision Conditions With the compressor off the radiation fin temperature is above 80 C above 75 C in the case of 7 1kW class Reset is made when the t...

Страница 140: ...ution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Error again or outdoor unit fan activated YES z Fin thermistor NO Slightly dirty Check No...

Страница 141: ...diation fin temperature with the compressor on is above 90 C If a radiation fin temperature rise takes place 4 times successively the system will be shut down The error counter will reset itself if th...

Страница 142: ...or the power transistor Replace the fan motor Correct the connectors and fan motor leads Replace the outdoor unit PCB Clean up the radiation fin R2851 Caution Be sure to turn off power switch before c...

Страница 143: ...s running An output over current input is fed from the output over current detection circuit to the microcomputer The system will be shut down if the error occurs 16 times Clearing condition Continuou...

Страница 144: ...nected for part replacement for example and the system is interrupted by an output over current take the following procedure Error again NO YES NO YES Voltage as rated YES NO Short circuit or breakage...

Страница 145: ...z Compressor running frequency However when the status of running frequency 55 Hz is kept on for a certain time Note The values are different from model to model Gas shortage detection II If a gas sho...

Страница 146: ...exchanger thermistor 1 Replace the PCB 2 Replace the compressor Procedure complete R2853 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurre...

Страница 147: ...n Continuous run for about 60 minutes normal Supposed Causes Supply voltage not as specified Over voltage detector or DC voltage detection circuit defective PAM control part s defective Troubleshootin...

Страница 148: ...ct that connector and check the conductivity using a tester Check the conductivity between pins 1 3 and 6 and between pins 2 4 and 5 If there is no conductivity between the pins the EV coil is faulty...

Страница 149: ...nit PCB Replace the four way valve coil Replace the four way valve R2856 NO Four way valve coil Cooling dry No continuity Heating Continuity YES YES Four way valve coil resistance at 1500 ohms NO S80...

Страница 150: ...ance of each thermistor using tester The relationship between normal temperature and resistance is shown in the graph and the table below Thermistor R25 C 20k B 3950 Temperature C 20 211 0 k 15 150 10...

Страница 151: ...ger Change the installation location or direction Check the outside air temperature temperature of air taken in by the outdoor unit The outside air temperature shall be 46 C or lower Check the allowab...

Страница 152: ...p valve Replace the pipe installed at the site Clean Replace the compressor R1443 YES YES YES NO NO NO NO At the heat exchanger and air filter dirty Is the stop valve open Is the connection pipe defor...

Страница 153: ...disturbance near the zero cross sections circled in Fig 2 5 1 9 Inverter Units Refrigerant System Check Check No 11 Fig 1 Fig 2 R1736 R1444 Refrigerant system check Check for gas leaks See the sectio...

Страница 154: ...turning off the circuit breaker If unavoidably necessary to touch a live part make sure the power transistor s supply voltage is below 50 V using the tester For the UVW make measurements at the Faston...

Страница 155: ...and 7 3 With the system and the power still off reconnect the connector S70 4 Make a turn of the fan motor with a hand and make sure the pulse 0 15 V appears twice at pins 1 and 4 If the fuse is blown...

Страница 156: ...Box PCB Swing Motor 155 1 5 Removal of the Heat Exchanger 161 1 6 Removal of the Fan Rotor Fan Motor 164 2 Outdoor Unit 166 2 1 Removal of the Panels and Plates 166 2 2 Removal of the Fan Motor Prope...

Страница 157: ...he signal receiver catches a signal from the remote control it produces beep sound and the operation lamp blinks 2 Remove the air filters 1 Hold the front panel by the tabs on the both sides and lift...

Страница 158: ...Insert two claws of the air filter completely 3 Remove an air purifying filter with photocatalytic deodorizing function 1 Push up the bottom of an air purifying filter to undo the claws 2 on lower 3...

Страница 159: ...1 While opening the front panel further than it stops release both axes and remove the front panel Slide the front panel side to side to release each axis Align the right and left axes with grooves in...

Страница 160: ...tep Procedure Points 1 Remove the service cover 1 Loosen the screw and remove the service cover by the knob No field setting switch is inside it You can remove the front grille without detaching the s...

Страница 161: ...on the center and the both sides of the upper part Refer to the removal procedure in a reverse way when reassembling 3 Pull the upper part of the front grille out and lift the lower part up and then r...

Страница 162: ...ades It has no fixing screws inside blades though previous models had 2 Undo the left pivot of the horizontal blades 3 Bend the horizontal blades slightly and release the center pivots Slide the horiz...

Страница 163: ...306D 154 Removal Procedure 2 Remove the vertical blades 1 Undo the right and left pivots 2 Undo the three claws 3 Pull the vertical blades rightwards and remove it Step Procedure Points Vertical blade...

Страница 164: ...er turning off all power supplies before disassembling work Step Procedure Points 1 Remove the front grille Parts layout 2 Remove the drip proof plate 1 Loosen the screw 3 Disconnect the indoor heat e...

Страница 165: ...x without detaching the terminal strip board Screw M4 25 2 Disconnect the connectors for fan motor S1 3 Disconnect the connectors for swing motor S6 S8 4 Loosen the fixing screw of the electrical box...

Страница 166: ...undo the back claw The electrical box has a claw on its back 6 Pull the electrical box out towards you Hook the back claw of the electrical box when reassembling 7 Loosen the screw on the electrical...

Страница 167: ...e 10 Cut the clamp 11 The receiver units contain four PCBs Remove each PCB with releasing claws Disconnect every connector from each PCB Remove the receiver units while pushing the claws of connectors...

Страница 168: ...2 Control PCB indoor unit S1 connector for the fan motor S21 HA S26 connector for the room temperature thermistor S32 connector for the heat exchanger thermistor 6 Remove the swing motor for horizont...

Страница 169: ...wing axis on the right side Releasing the swing axis 2 Loosen the two screws and detach the swing motor assembly 3 Loosen the two screws and remove the swing motor Six claws hold the assembly Step Pro...

Страница 170: ...into refrigerant cycle Contaminating of air or other gas causes abnormal high pressure in refrigerating cycle and this results in pipe breakage or personal injuries Pay attention so that the residual...

Страница 171: ...the installation plate 3 Remove the piping fixture 1 Release the claw on the upper side of the piping fixture on the back of the unit 4 Remove the heat exchanger 1 Widen the auxiliary piping to the ex...

Страница 172: ...ide and release 4 Pull the heat exchanger to the front side and undo the claws completely and then lift it Caution When removing or reinstalling heat exchanger be sure to wear protective gloves or wra...

Страница 173: ...efore disassembling work Step Procedure Points 1 Remove the right side panel 1 Loosen the two screws You can remove the fan rotor without detaching the right side panel 2 Lift the right side panel and...

Страница 174: ...bling the fan motor align the end of the connector with the height of for play 4 Remove the bearing 1 Remove the fan rotor The bearing is on the left side 2 Loosen the two screws and remove the mounti...

Страница 175: ...ning off all power supplies before disassembling work Step Procedure Points 1 Remove the panels and plates Take care not to cut your finger by the fins of the heat exchanger 1 Loosen the four screws a...

Страница 176: ...ille has four claws Slide the discharge grille upwards and remove it 3 Loosen the six screws of the front panel 4 Push the front panel and undo the claw Lift the clamp plate and remove it Step Procedu...

Страница 177: ...e claw and then the left side claws Remove the front panel Lift the front panel and remove it while pushing the right side panel inwards Lift the front panel and undo the left side claws Fit the left...

Страница 178: ...Procedure 169 2 Remove the stop valve cover 1 Loosen the screw of the stop valve cover 2 Pull down the stop valve cover to undo the claws and remove it The stop valve cover has six claws Step Procedu...

Страница 179: ...rocedure Points Remove the top panel and the front panel 1 Remove the electrical box cover This procedure is not necessary to remove the propeller fan only 1 Loosen the screw on the back of the shelte...

Страница 180: ...r Unit Removal Procedure 171 2 Remove the fan motor 1 Disconnect the connector for fan motor S70 2 The illustration shows arrangement of the fan motor lead wire Step Procedure Points S70 R2692 Fan mot...

Страница 181: ...ew the washer fitted nut M10 of the propeller fan with a spanner Align mark of the propeller fan with D cut section of the motor shaft when reassembling 4 Remove the four screws from the fan motor Ste...

Страница 182: ...306D Outdoor Unit Removal Procedure 173 5 Pull the fan motor out Put the lead wire through the back of the motor when reassembling so as not to be entangled with the propeller fan Step Procedure Point...

Страница 183: ...Procedure Points Remove the top panel and the front panel 1 Remove the right side panel Terminal strip number black 1 power supply white 2 power supply red 3 transmission yellow green earth 1 Disconn...

Страница 184: ...ling 2 Disconnect harnesses 1 Loosen the fixing screw of the cable way board Service monitor PCB Step Procedure Points R2701 Claw R2702 Claws Cable way board Service monitor PCB R2703 S52 SW1 A B C LE...

Страница 185: ...yellow green to the terminal strip earth HAC1 black from the control PCB AC1 HE1 yellow green from the control PCB E Power supply PCB 4 Disconnect the connectors of the front side S20 electronic expan...

Страница 186: ...ntrol PCB from the ditch of the front side 7 Disconnect the harnesses while opening the control PCB S10 to the terminal strip AC2 to the terminal strip 8 Disconnect the connectors S51 to the service m...

Страница 187: ...n valve S31 to CN14 of the SPM S32 to CN11 of the SPM S33 to S34 of the MID S40 overload protector S51 to S52 of the service monitor PCB S71 to S72 of the MID S80 four way valve S90 thermistors discha...

Страница 188: ...SiEN04 306D Outdoor Unit Removal Procedure 179 11 Disconnect the relaying wire connector for the compressor 12 Release the clamp by pliers 13 Disconnect the reactor harness Step Procedure Points R2715...

Страница 189: ...Outdoor Unit SiEN04 306D 180 Removal Procedure 14 Pull the clamp and draw the thermistor harness out from the back of the electrical box 15 Loosen the screw of the electrical box Step Procedure Points...

Страница 190: ...SiEN04 306D Outdoor Unit Removal Procedure 181 16 Release the clamp of the four way valve harness 17 Lift the electrical box and remove it Step Procedure Points R2720 Electrical box R2721...

Страница 191: ...or more after turning off all power supplies before disassembling work Step Procedure Points Remove the electrical box 1 Remove the partition plate 1 Release the clamp by pliers 2 Loosen the two screw...

Страница 192: ...SiEN04 306D Outdoor Unit Removal Procedure 183 3 Lift the partition plate and remove it 4 Loosen the screw Slide the reactor and remove it from the partition plate Step Procedure Points Reactor R2726...

Страница 193: ...ts 1 Disconnect the harness of each thermistor 2 Release the discharge pipe thermistor Pay attention to the direction of the clip so as not to touch the lead wire of the thermistor when reassembling 3...

Страница 194: ...nket carefully 5 Remove the sound blanket top upper 6 Remove the sound blanket top lower 7 Remove the sound blanket side inner Since the piping ports on the sound blanket side inner are torn easily re...

Страница 195: ...ickly when no nitrogen gas can be used 2 It is required to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat For the sake of this wra...

Страница 196: ...at the refrigerant is empty in the circuit 3 Heat up the two brazed parts of the electronic expansion valve and disconnect Be sure to apply nitrogen replacement when heating up the brazed part Caution...

Страница 197: ...nutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the terminal cover 2 Disconnect the lead wires of the compressor Be careful so as not to bur...

Страница 198: ...s Provide a protective sheet or a steel plate so that the brazing flame cannot influence peripheries Be careful so as not to burn the compressor terminals or the name plate 5 Heat up the brazed part o...

Страница 199: ...Outdoor Unit SiEN04 306D 190 Removal Procedure...

Страница 200: ...SiEN04 306D Others 191 Part 8 Others 1 Others 192 1 1 Test Run from the remote control 192 1 2 Jumper Settings 193...

Страница 201: ...n and Testing 1 Measure the supply voltage and make sure that it falls in the specified range 2 Trial operation should be carried out in either cooling or heating mode 3 Carry out the test operation i...

Страница 202: ...ove the drip proof plate 4 tabs 4 Cut the address jumper JA on the control PCB infrared remote control 1 Slide the front cover and take it off 2 Cut the address jumper J4 1 2 2 Jumper Setting R2871 R2...

Страница 203: ...Others SiEN04 306D 194 Others...

Страница 204: ...SiEN04 306D Appendix 195 Part 9 Appendix 1 Piping Diagrams 196 1 1 Indoor Units 196 1 2 Outdoor Units 197 2 Wiring Diagrams 203 2 1 Indoor Units 203 2 2 Outdoor Units 206...

Страница 205: ...N FAN MOTOR 7 9CuT INDOOR UNIT 12 7CuT M HEAT EXCHANGER REFRIGERANT FLOW ON HEAT EXCH THERMISTOR HEATING COOLING 4D040081L 15 9CuT FIELD PIPING FIELD PIPING 6 4CuT CROSS FLOW FAN FAN MOTOR 7 9CuT INDO...

Страница 206: ...4CuT FILTER 6 4CuT 6 4CuT GAS STOP VALVE VALVE MOTOR OPERATED STOP VALVE LIQUID FIELD PIPING FIELD PIPING REFRIGERANT FLOW 12 7CuT 6 4CuT COOLING 3D037835B OUTDOOR UNIT 9 5CuT 12 7CuT 7 9CuT 7 9CuT 7...

Страница 207: ...T 6 4CuT 6 4CuT GAS STOP VALVE WITH SERVICE PORT MOTOR OPERATED VALVE LIQUID STOP VALVE FIELD PIPING 6 4CuT FIELD PIPING 15 9CuT REFRIGERANT FLOW COOLING M 3D049272A OUTDOOR UNIT 9 5CuT 12 7CuT HEAT E...

Страница 208: ...TOP VALVE FIELD PIPING FIELD PIPING 6 4 CuT 15 9 CuT REFRIGERANT FLOW COOLING M DISCHARGE PIPE THERMISTOR 7 9CuT COMPRESSOR 12 7CuT ACCUMULATOR 12 7CuT 3D037852G OUTDOOR UNIT 9 5CuT 12 7CuT 7 9CuT 7 9...

Страница 209: ...ANT FLOW COOLING HEATING 12 7CuT 6 4CuT GAS STOP VALVE WITH SERVICE PORT LIQUID STOP VALVE FIELD PIPING FIELD PIPING 12 7 CuT 6 4 CuT M 3D034262F OUTDOOR UNIT 12 7CuT 12 7CuT 7 9CuT 7 9CuT 7 9CuT 7 9C...

Страница 210: ...9CuT HEAT EXCHANGER THERMISTOR PROPELLER FAN 6 4CuT MUFFLER WITH FILTER MUFFLER WITH FILTER FILTER 6 4CuT 6 4CuT MOTOR OPERATED VALVE REFRIGERANT FLOW COOLING HEATING 3D049271A OUTDOOR UNIT 15 9CuT H...

Страница 211: ...P VALVE VALVE MOTOR OPERATED STOP VALVE LIQUID FIELD PIPING FIELD PIPING REFRIGERANT FLOW 15 9CuT 6 4CuT COOLING HEATING M OUTDOOR UNIT 3D037850C OUTDOOR UNIT 12 7CuT 12 7CuT 7 9CuT 7 9CuT 7 9CuT 7 9C...

Страница 212: ...OFF AND THEN BACK NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF FIELD WIRING CAUTION 3 2 1 OUTDOOR FRAME GROUND FUSE HARNESS PILOT LAMP FAN MOTOR PRINTED CIRCUIT BOARD CONNECTOR OPERATION SWITCH T...

Страница 213: ...EARTH TERMINAL STRIP OPERATION SWITCH CONNECTOR PRINTED CIRCUIT BOARD FAN MOTOR PILOT LAMP FUSE FRAME GROUND H1 H3 HARNESS 3D038466B M SIGNAL RECEIVER INDOOR X1M Fu 3 15A S1W LED1 H1P TRANSMISSION CI...

Страница 214: ...SiEN04 306D Wiring Diagrams Appendix 205 FTKD18 24 28BVMS...

Страница 215: ...MID R1T S6 ORG BLK 6 BRN BLK t S72 S71 1 BLU 8 8 FU201 3 15A RED 1 1 S70 BRN W V U N 7 1 8 RED S33 S34 YLW WHT BLU RED ORG BRN BLU BRN RED YLW X11A 10 10 BLU YLW BRN BLU RED 1 GRY V S40 1 3 M1F M1C M...

Страница 216: ...SiEN04 306D Wiring Diagrams Appendix 207 RKD18 24 28BVMS...

Страница 217: ...Wiring Diagrams SiEN04 306D 208 Appendix...

Страница 218: ...sistor check 145 thermistor resistance check 141 turning speed pulse input on the outdoor unit PCB check 146 check No 01 139 check No 04 139 check No 05 140 check No 06 141 check No 07 142 check No 08...

Страница 219: ...st of 2 fuse 36 38 G gas piping 161 H H1 38 H2 38 H6 125 H8 126 H9 128 HA 36 159 HAC1 38 176 Hall IC 45 111 HE1 38 176 HE2 38 176 heat exchanger 163 166 heating peak cut control 62 high pressure contr...

Страница 220: ...d measures 103 programme dry function 46 propeller fan 172 R radiation fin temperature rise 132 radiation fin thermistor 129 reactor 183 receiver units 158 remote control 104 right side panel 164 174...

Страница 221: ...related abnormality outdoor unit 128 thermistor resistance check 141 thermostat control 48 TIMER operation 91 top panel 166 troubleshooting 96 107 troubleshooting with the LED indication 102 turning s...

Страница 222: ...mance check 140 freeze up protection control 62 freeze up protection control or high pressure control 109 frequency control 58 frequency principle 42 H heating peak cut control 62 high pressure contro...

Страница 223: ...n fin temperature rise 132 remote control 104 S service monitor PCB 39 signal receiver PCB 37 signal transmission error between indoor and outdoor units 114 SPM 40 T target discharge pipe temperature...

Страница 224: ...36 RPR Oostende The present publication is drawn up by way of information only and does not constitute an offer binding upon Daikin Europe N V Daikin Europe N V has compiled the content of this public...

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