Fujitsu ROG30LMTA Service Instruction Download Page 33 | Manualshive

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2 . TROUBLE SHOOTING

WALL MOUNTED type

INVERTER

AMP Air Conditioning

www.ampair.co.uk | [email protected]

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Summary of Contents for ROG30LMTA

Page 1: ...ITIONER WALL MOUNTEDtype Models Indoor unit Outdoor unit AS G30LMTA AS G36LMTA AO G30LMTA AO G36LMTA INVERTER SERVICE INSTRUCTION RSG36LMTA ROG36LMTA RSG30LMTA ROG30LMTA AMP Air Conditioning www ampair co uk sales ampair co uk ...

Page 2: ...OL 20 DEFROST OPERATION CONTROL 01 01 01 02 01 02 01 03 01 05 01 07 01 08 01 09 01 11 01 14 01 14 01 15 01 15 01 15 01 15 01 16 01 16 01 16 01 17 01 19 01 14 2 TROUBLE SHOOTING 2 1 ERROR DISPLAY 2 1 1 INDOOR UNIT AND WIRED RMOTE CONTROLLER DISPLAY 2 1 2 WIRED REMOTE CONTROLLER DISPLAY OPTION 2 2 TROUBLE SHOOTING WITH ERROR CODE 2 3 TROUBLE SHOOTING WITH NO ERROR CODE 02 01 02 01 02 02 02 03 02 30 ...

Page 3: ...1 DESCRIPTION OF EACH CONTROL OPERATION WALL MOUNTED type INVERTER AMP Air Conditioning www ampair co uk sales ampair co uk ...

Page 4: ...re rises 36 C A zone 34 C 32 C B zone 30 C 21 C C zone 19 C D zone Hi Me Lo Quiet Table 1 Compressor Frequency Range 01 01 E zone F zone 10 C 0 C 12 C 2 C When the room temperature is between 6 0 C to 1 0 C of the setting temperature the compressor frequency is controlled within the range shown in Table1 However the maximum frequency is limited in the range shown in Figure1 based on the fan speed ...

Page 5: ... 6 0 C of the setting temperature the compressor frequency is controlled within the range shown in Table2 Table 2 Compressor Frequency Range 01 02 minimum frequency maximum frequency 16rps 90rps 3 DRY OPERATION 3 1 INDOOR UNIT CONTROL The compressor rotation frequency shall change according to the temperature set temperature and room temperature variation which the room temperature sensor of the i...

Page 6: ...e temperature control function after the Cooling or Heating mode was selected at above operation is switched to Monitoring and the operation mode is selected again When the middle zone is selected on the predetermining of the operation mode the operation mode before the changing to the monitor mode is selected 1 2 3 1 Fig 3 Outdoor temperature zone selection Cooling Operation mode Temperature 25 C...

Page 7: ...eration command other than auto changeover operation NO Thermostat remains in OFF state for 6 minutes or longer System stops or operation command other than auto changeover operation Middle zone NO NO Operation mode of outdoor unit Cooling YES NO Operation mode of outdoor unit Heating YES NO YES Outdoor temperature 25 C NO YES YES YES NO YES YES Operation mode before the monitor mode is cooling mo...

Page 8: ...ble4 Fig 3 Airflow change over Cooling AUTO When the room temperature rises When the room temperature drops TR Room temperature Ts Setting temperature TR Ts 2 C 1 C TR Ts 2 C TR Ts 1 C TR Ts 2 5 C 1 5 C TR Ts 2 5 C TR Ts 1 5 C High mode Med mode Low mode 1 Fan speed 4 DRY OPERATION Refer to the Table4 During the dry mode operation the fan speed setting can not be changed Table4 Indoor Fan Speed Op...

Page 9: ... rises When the room temperature drops TR Room temperature Ts Setting temperature Low mode Med mode Med mode Switch the airflow AUTO at cooling mode and the indoor fan motor will run as shown in Figure6 7 MOISTURE RETURN PREVENTION CONTROL Cooling mode Dry mode Fig 6 Indoor Fan Control Compressor ON OFF Indoor fan Setting air flow Indoor fan as shown in Table 5 S Lo OFF 10 30 60 180 60 180 60 10 3...

Page 10: ... outdoor fan motor The control method is different between AC motor and DC motor 30 36LMTA 900rpm 30LMTA 01 07 Fig 7 Outside air temperature zone selection 12 C 0 C Outside air temperature Outside air temperature F zone Z zone G zone H zone 2 C 8 C 10 C 21 C Y zone 19 C 10 C Table 7 Outdoor fan speed Cooling Heating Z Y F Zone 900 850 800 620 550 450 Refer to Fig 7 rpm 500 320 230 G 270 230 200 H ...

Page 11: ...ion cannot be adjusted at beginning AUTO operation mode During Heating Cooling Dry modes Cooling mode Dry mode Fan mode Heating mode Fan mode 3 SWING OPERATION When the swing signal is received from the remote controller the vertical louver starts to swing Swinging Range 1 3 1 4 1 4 6 3 6 6 To select Vertical Airflow Swing Operation To select Horizontal Airflow Swing Operation When the swing signa...

Page 12: ...essor Control at Start up Normal start up 30rps 47rps 60rps Normal operation Cooling and dry mode After defrost operation Special operation Other than normal operation condition First turn on Time Time Time Frequency 2 Special Frequency Frequency Frequency Frequency Frequency Frequency Time Time Time 60sec 180sec 240sec Time 30rps 47rps 60rps Frequency 1 Normal Frequency Frequency Frequency Time T...

Page 13: ... timer The program timer allows the OFF timer and ON timer to be used in combination one time Operation mode Operation will start from the timer setting either OFF timer or ON timer whichever is closest to the clock s current timer setting The order of operations is indicated by the arrow in the remote control unit s display SLEEP timer operation cannot be combined with ON timer operation Table 12...

Page 14: ...hour After that the setting temperature is not changed and the operation is stopped at the time of timer setting Ts 1 C 2 C Set 60min 0 In the heating operation mode When the sleep timer is set the setting temperature is decreased 1 C It decreases the setting temperature another 1 C every 30 minutes Upon lowering 4 C the setting temperature is not changed and the operation stops at the time of tim...

Page 15: ... OFF ON OFF ON OFF Set time Set time The DAY OFF setting is only available for days for which weekly settings already exist The DAY OFF setting can only be set one time The DAY OFF setting is cancelled automatically after the set day has passed Normal Next day setting If the operating time carries over to the next day during a next day setting the effective DAY OFF range will be set as shown below...

Page 16: ...TES 3 MINUTES ST 01 14 Table14 The pulse range of the electronic expansion valve control Cooling Dry mode Heating mode Operation mode Pulse range between 53 to 480 pulses between 40 to 480 pulses Wirless remoe controller The outdoor unit may not operate depending on the room temperature In this case keep on pressing the MANUAL AUTO button of the indoor unit for more than 10 seconds The operation i...

Page 17: ...hanged follow as setting of remote controller OFF Room Temp is not controlled If cooling operation is set the operation is controlled as shown in Table16 When the power was interrupted by a power failure etc during operation the operation contents at that time are memorized and when power is recovered operation is automatically started with the memorized operation contents When the power is interr...

Page 18: ...ration is almost the same operation as below settings Mode Heating Setting temperature 10 C Fan mode AUTO Table17 19 ECONOMY OPERATION The ECONOMY operation functions by pressing ECONOMY button on the remote controller The ECONOMY operation is almost the same operation as below settings Mode Cooling Dry Heating Target temperature Setting temp 1 C Setting temp 1 C Table18 When the outdoor temperatu...

Page 19: ...upon starting operation ND Compressor integrating operation time Compressor integrating operation time Compressor integrating operation time Less than 22 min 22 to 62 min More than 62 min Does not operate 9 C 5 C Less than 35 min More than 35min Does not operate Integrating defrost Constant monitoring More than 240 min For long continuous operation Less than 10min 1 For intermittent operation 3 C ...

Page 20: ...Over 22 min Outdoor heat exchanger temperature Below 9 C Outdoor heat exchanger temperature Below 5 C Compressor integrating operation Over 35 min 2nd and later defrost Integrating defrost Constant monitoring Defrost Indicator Operation lamp 7 sec ON 2 sec OFF Defrost start Tn Tn10 5deg Tn Tnb 2deg However Tn 6 C Compressor OFF count 40 times Less than 10min 1st defrost Compressor integrating oper...

Page 21: ...ion more than 10 minutes and compressor operation integrating time lasts for more than 30 minutes OFF Defrost Flow Chart Heating operation stop Outdoor heat exchanger temperature Below 4 C Compressor continuous operation Over 10 minutes Compressor integrating operation Over 30 minutes Defrost start Defrost Indicater Operation lamp 7 sec ON 2 sec OFF Outdoor heat exchanger temperature Over 13 C or ...

Page 22: ...sor frequency returns to the designated frequency of the indoor unit at the time when the frequency becomes lower than the release value Table 22 1 Current Release Operation Value Release Value 01 20 Heating TO Outdoor Temperature Cooling TO Control Release 9 0A 8 5A 10 0A 9 5A 12 5A 12 0A 14 5A 14 0A 50 C 46 C 40 C TO Control Release 10 0A 9 5A 11 5A 11 0A 14 5A 14 0A 14 5A 14 0A 17 C 12 C 5 C He...

Page 23: ...operation Compressor is stopped 53 C 55 C 63 C 50 C The compressor frequency is decreased 2rps 30 every 120seconds The compressor frequency is decreased 15rps 30 every 120seconds 6 COMPRESSOR TEMPERATURE PROTECTION When the compressor temperature sensor detects higher than 108 C the compressor is stopped The protection is released when the compressor temperature sensor detects 80 C after 3 minutes...

Page 24: ...uring the LOW NOISE OPERATION CURRENT OVERLOAD OPERATION ECONOMY OPERATION and PEAK CUT OPERATION are effective and the outdoor unit operates by lowest current of them However during the DEFROST OPERATION the compressor operates by the speed for DEFROST OPERATION Table 27 Detail of Low Noise Operation 620 620 620 620 32 32 34 34 The performance drops when operating in the LOW NOISE OPERATION AMP A...

Page 25: ...he room temperature is very different from the temperature defined in temperature setting such as when immediately after starting the operation Horizontal angle 100 Top view The set temperature will be decreased by a maximum of approximately 4 C This runs the ENERGY SAVING function automatically for the selected mode Cooling Heating Drying High limit 30 C Low limit 16 C 25 POWERFUL OPERATION The P...

Page 26: ...tions 3 Controlling The control specification Compressor operation control Outdoor unit FAN control EEV control Protection Function and abnormal deisplay belongs to the original controlling specification of one system 4 Operation specification When Server room control is activated by changing the setting on function setting 96 this product maintains the room temperature constant by performing 3 ty...

Page 27: ...eling procedure of Server room control 4 The Pump down operation has to be performed by Pump down SW on the outdoor unit s PCB The forced operation by pushing MANUAL AUTO button is not available 5 Error memory indication function is not available 6 When the following setting needs to be changed set the remote controller Mode Cooling and High FAN mode Air flow direction UP Down Right Left Swing Low...

Page 28: ...ed on one unit operation start indication is issued to another unit and the unit starts backup operation On Indoor unit A Indoor unit B Off On Off Error occurred 7 3 Supporting operation When the room temperature does not reach to the set point after a certain period of time regardless of the primary secondary relation of the unit operation start indication is issued to another unit and both indoo...

Page 29: ...llation facing each other the vertical airflow direction louver on each indoor unit should be set at a position from 3 to 6 Do not connect any wired remote controller 1 2 3 4 5 6 8 1 Install Option UTY XWNX 8 1 1 Front panel control box cover removal Precautions 5 Pull the front panel forward raising the upper surface to remove the front panel Front panel 6 Remove 2 screws then remove the control ...

Page 30: ... wires 3 Connect the wires from the terminal block to the indoor unit main PCB by inserting to connector CN12 4 Change the DIP switch setting as shown in the following photograph Connector CN12 Indoor unit main PCB Terminal block wires 2WIRE 3WIRE CAUTION Be careful not to damage the parts on the board Otherwise it will cause malfunction Ensure that the connector is properly inserted Otherwise it ...

Page 31: ...trol box cover 2 screws Screw Screw 2 Open a hole in the front panel for the remote controller cable to pass through Choose from 4 knockout holes marked on the inside of the front panel 3 Replace the front cover First insert the hook on the lower part of the front panel 5 places then fit the hooks on the top 3 places 4 Replace the 10 screws 5 Replace the wire cover 1 screw 6 Replace the 4 caps 7 R...

Page 32: ...peration NOTE While performing these steps error indications will be lit on the unit Nevertheless continue the procedure 8 3 Starting units operation Set the weekly timer on the primary unit For the weekly timer setting procedure refer to the OPERATION MANUAL Server room control is activated and the unit will start the alternative operation NOTE If the alternative operation does not start or error...

Page 33: ...2 TROUBLE SHOOTING WALL MOUNTED type INVERTER AMP Air Conditioning www ampair co uk sales ampair co uk ...

Page 34: ...imes 5 times Continuous Continuous 4 times 4 times 7 times 6 times 6 times 6 times 1 times Continuous 7 times 3 times Continuous 2 times 3 times 3 times 2 times 7 times A F Voltage Error Discharge Thermistor Error Heat Ex Liquid Outlet Thermistor Error Compressor Thermistor Error Please refer the flashing pattern as follows Indoor Unit 30 36LMTA The OPERATION TIMER ECONOMY lamps operate as follows...

Page 35: ... 4 times Current Sensor Error 8 times 6 times High Pressure Switch Error 10 times 3 times Compressor Temp Error 5 times 9 times 9 times 7 times 7 times Compressor Control Error Outdoor Unit Fan Motor Error 4 times 9 times 9 times 9 times 4 Way Valve Error 1 times 10 times Discharge Temp Error Over Current Error Indoor Unit Display Wired Remote Controller Display 74 77 84 86 94 95 97 99 A1 A3 Heat ...

Page 36: ...units 1 Check the error Mode Set Temp Fri 10 00AM Menu Monitor Back Page 1 4 Page 1 5 Air Flow Direction Economy VT Individual Error Code Address 1 02 01 14 15 41 44 Off Next Page Next Page Error Information Status Status Error Information Fan 1 2 3 If you use a wireless remote control the lamp onthe photo detector unit will output error codes by way of blinking patterns If you use a wired type re...

Page 37: ...le or mis wiring Check Point 3 Check the voltage of power supply Check the voltage of power supply Check if AC216V AC240V 10 264V AC240V 10 appears at outdoor unit terminal L N When the indoor unit cannot receive the serial signal from Outdoor unit more than 2minutes after power ON or the indoor unit cannot receive the serial signal more than 15seconds during normal operation 02 04 2 2 TROUBLE SHO...

Page 38: ...oose connector open cable or mis wiring Check Point 3 Check the voltage of power supply Check the voltage of power supply Check if AC216V AC240V 10 264V AC240V 10 appears at outdoor unit terminal L N Check Point 4 Check serial signal Forward transfer signal Check serial signal Forward transfer signal Check if indicated value swings between AC30V and AC130V at outdoor unit terminal 2 3 If it is abn...

Page 39: ... If it is DC 0V Controller PCB is failure Check Remote Control once again Replace Controller PCB Check Voltage at CN6 terminal 1 3 of Controller PCB Power supply to Remote Control Check Point 4 Check Wired Remote Controller and Controller PCB OK OK If it is DC 0V Controller PCB is failure Replace Controller PCB Check Voltage at CN6 terminal 1 3 of Controller PCB Forecast of Cause Check Point 2 Che...

Page 40: ...is loose connector open cable or mis wiring the same a signal has not been received for 15sec After receiving a signal from the external I O PCB 1 Connection failure 2 External I O PCB failure 3 Controller PCB failure Check Point 1 Check the connection Check Point 2 Replace external I O PCB If Check Point 1 do not improve the symptom change External I O PCB OK OK Check Point 3 Replace Controller P...

Page 41: ... Check Point 1 Check the type of indoor unit Check the type of the connected indoor unit If abnormal condition is found correct it Check Point 2 Replace Main PCB If Check Point 1 do not improve the symptom replace Main PCB of Outdoor unit Indicate or Display Indoor Unit Operation lamp 2 times Flash Timer lamp 3 times Flash ERROR CODE E 23 Wired Remote Controller AMP Air Conditioning www ampair co ...

Page 42: ...fer to the installation manual Change controller PCB and check the Error after setting remote controller address Check if controller PCB damage Check Point 2 Wrong RCgroup setting The given address number by auto setting 00 and the manual set number Except 00 were not existing in one RCG The remote controller address setting by U I were not existing same address The duplicated address number is no...

Page 43: ... of Cause 1 Wrong wiring Number of I U RC in RCgroup 2 Indoor unit controller PCB defective Check Point 1 Wire installation Wrong number of connecting indoor unit Check Point 2 Check Indoor unit controller PCB Check if controller PCB damage Check if controller PCB and check the Error after setting remote controller address Indicate or Display Indoor Unit Operation lamp 2 times Flash Timer lamp 9 t...

Page 44: ...equipment which causes harmonic wave Note EEPROM EEPROM Electronically Erasable and Programmable Read Only Memory is a non volatile memory which keeps memorized information even if power is turned off It can change the contents electronically To change the contents it uses higher voltage than normal and it can not change a partial contents Rewriting shall be done upon erasing the all contents Ther...

Page 45: ... Check the Manual Auto Switch Check if Manual Auto Switch is kept pressed Check ON OFF switching operation by using a meter If Manual Auto Switch is disabled on off switching replace it Check Point 2 Replace Controller PCB and Indicator PCB If Check Point 1 do not improve the symptom replace Controller PCB and Indicator PCB and execute the check operation again 02 12 Indicate or Display Indoor Uni...

Page 46: ...r PCB failure Remote is OK Replace Controller PCB In case of re installation is done due to removed connector or incorrect wiring turn on the power again After turning off the power supply check correct the followings 02 13 Depending on the connected remote controller type following setting is required 2 wire remote controller PCB 3 wire remote controller PCB If the communication PCB is not connce...

Page 47: ...ling due to removed connector or incorrect wiring 6 5 8 0 10 0 12 5 15 8 20 2 25 9 33 6 4 4 5 3 Resistance value k OK OK Check Point 3 Check voltage of Controller PCB DC5 0V Make sure circuit diagram of each indoor unit and check terminal voltage at Thermistor DC5 0V If the voltage does not appear replace Controller PCB and execute the check operation again DC BLACK BLACK 1 2 4 CN1 BLACK BLACK 3 1...

Page 48: ...sistance value OK Check Point 3 Check voltage of Controller PCB DC5 0V Make sure circuit diagram of each indoor unit and check terminal voltage at Thermistor DC5 0V If the voltage does not appear replace Controller PCB and execute the check operation again DC 02 15 Trouble shooting 12 INDOOR UNIT Error Method Indoor Heat Ex Thermistor Error 31 7 39 6 49 7 62 9 80 3 103 3 134 2 176 0 17 1 20 9 25 6...

Page 49: ...Check erroneous connection Check if sensor cable is open Reset Power when reinstalling due to removed connector or incorrect wiring OK Sensor connections error OK Sensor signal error Disconnect the sensor and check the 2 3pin on sensor connector With conduction Main PCB failure Without conduction Sensor failure Check Point 2 Voltage check Disconnect the sensor and check the Voltage of 1pin of the ...

Page 50: ... abnormal replace it Check excessively high temperature around the motor If there is any surrounding equipment that causes heat Upon the temperature coming down restart operation When the condition that actual frequency of Indoor Fan is below 1 3 of target frequency is continued more than 56 seconds Check Point 4 Replace Controller PCB If Check Point 1 3 do not improve the symptom replace Controll...

Page 51: ... minutes Check Point 1 Replacethe indoor unit controller PCB No float switch on this unit If this error is displayed Replease the indoor unit controller PCB Forecast of Cause 1 Controller PCB failure 02 18 Indicate or Display Indoor Unit Operation lamp 5 times Flash Timer lamp 3 times Flash ERROR CODE E 53 Wired Remote Controller AMP Air Conditioning www ampair co uk sales ampair co uk ...

Page 52: ...e Does Error indication show again Check Point 1 2 Check external cause Check if temporary voltage drop was not generated Check if momentary open was not generated Check if ground is connection correctly or there are no related cables near the power line Change Main PCB Access to EEPROM failed due to some cause after outdoor unit started 02 19 Indicate or Display Indoor Unit Operation lamp 6 times...

Page 53: ...ables near the power line Check Point 2 Check the wiring Power supply to Filter PCB to Inverter PCB Connector and wiring connection state check Cable open check Replace Filter PCB and Inverter PCB Check Point 1 1 Turn the power on again Error displayed again Check Point 3 Replace Filter PCB INV and Inverter PCB 02 20 Trouble shooting 17 Detective Actuators Detective details OUTDOOR UNIT Error Meth...

Page 54: ...ge drop or Noise Instant drop Check if there is a large load electric apparatus in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding OK OK Check...

Page 55: ...y clogging of Outdoor Heat Exchanger Is the Fan rotating by hand when operation is off If the Fan Motor is locked replace it Check Outdoor Fan Motor Refer to Trouble shooting 29 If the Fan Motor is failure replace it Check Point 4 Check Compressor PARTS INFORMATION 2 Check Compressor If Check Point 1 5 do not improve the symptom change Main PCB When more than normal operating current to IPM in Mai...

Page 56: ...ctor is erroneous connection Check if thermistor cable is open Upon correcting the removed connector or mis wiring reset the power Check Point 2 Remove connector and check thermistor resistance value Thermistor characteristics Approx value If Thermistor is either open or shorted replace it and reset the power Check Point 3 Check voltage of Main PCB DC5 0V Make sure circuit diagram of outdoor unit ...

Page 57: ...tics Approx value If Thermistor is either open or shorted replace it and reset the power Check Point 3 Check voltage of Main PCB DC5 0V Make sure circuit diagram of outdoor unit and check terminal voltage at thermistor DC5 0V If the voltage does not appear replace Main PCB 02 24 17 8 26 3 20 40 0 62 6 79 1 100 9 129 8 168 6 Resistance value k 0 1 5 1 1013 1 30 531 6 20 292 9 10 221 1 5 5 0 Tempera...

Page 58: ...lue Thermistor characteristics Approx value If Thermistor is either open or shorted replace it and reset the power Check Point 3 Check voltage of Main PCB DC5 0V Make sure circuit diagram of outdoor unit and check terminal voltage at thermistor DC5 0V If the voltage does not appear replace Main PCB 02 25 7 7 5 9 7 12 4 16 1 20 9 27 5 49 2 Resistance value k 5 0 10 20 92 3 30 Temperature C 10 15 0 ...

Page 59: ...on Check if thermistor cable is open Upon correcting the removed connector or mis wiring reset the power Check Point 2 Remove connector and check thermistor resistance value Thermistor characteristics Approx value If Thermistor is either open or shorted replace it and reset the power Check Point 3 Check voltage of Main PCB DC5 0V Make sure circuit diagram of outdoor unit and check terminal voltage...

Page 60: ...7 Trouble shooting 24 Detective Actuators Detective details OUTDOOR UNIT Error Method Forecast of Cause If this error is displayed replace Inverter PCB Indicate or Display Indoor Unit Operation lamp 7 times Flash Timer lamp 7 times Flash ERROR CODE E 77 Wired Remote Controller AMP Air Conditioning www ampair co uk sales ampair co uk ...

Page 61: ... a large load electric apparatus in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check Point 1 1 Reset Power Supply and operate Does Error ...

Page 62: ...Connector and wiring connection state check Cable open check Check Point 2 Check the high pressure switch characteristics Switch characteristics check For the characteristics of high pressure switch refer to below OK Check Point 3 Replace Main PCB Change Main PCB and execute the check operation again Type of contact Characteristics of pressure switch C H Pressure Pressure switch 1 4 2 0 1MPa 3 2 0...

Page 63: ...re 2 Main PCB 3 Inverter compressor failure lock winding short 4 Transistor PCB IPM failure Protection stop by overcurrent generation after inverter compressor start processing completed generated consecutively 10 times The number of generations is reset if the start up of the compressor succeeds No obstructions in air passages Heat exchange fins clogged Outdoor unit fan motor check Ambient temper...

Page 64: ...mpressor Terminal Main PCB While running the compressor if the detected rotor location is out of phase with actual rotor location more than 90 the compressor stops After the compressor restarts if the same operation is repeated within 40sec the compressor stops again If and repeats 5 times the compressor stops permanently Check Point 1 Check Noise from Compressor Turn on Power and check operation ...

Page 65: ...cuit diagram and the voltage Measure at Main PCB side connector If the voltage is not correct replace Main PCB When outdoor fan rotation speed is less than 100rpm in 20 seconds after fan motor starts fan motor stops After fan motor restarts if the same operation within 60sec is repeated 3 times in a row compressor and fan motor stops If and repeats 5 times in a row compressor and fan motor stops p...

Page 66: ...is 2 085 at 20 C If it is Open or abnormal resistance value replace Solenoid Coil Cooling or Dry operation Indoor heat exchanger temp Room temp 10degC Heating operation Indoor heat exchanger temp room temp 10degC If the same operation is repeated 5 times the compressor stops permanently Solenoid coil Check each piping temperature and the location of the valve by the temperature difference If the v...

Page 67: ...nt amount Leak check EEV open Strainer clogging check Refer to PARTS INFORMATION 3 Check Point 2 Check the EEV strainer If the 3 way valve gas side was closed open the 3 way valve gas side and check operation 02 34 Check Point 1 Check if 3 way valve liquid side is open If the 3 way valve liquid side was closed open the 3 way valve liquid side and check operation OK 1 3 way valve not opened 2 EEV d...

Page 68: ...erant amount Leak check EEV open Strainer clogging check Refer to PARTS INFORMATION 3 Check Point 2 Check the EEV strainer If the 3 way valve gas side was closed open the 3 way valve gas side and check operation 02 35 Check Point 1 Check if 3 way valve liquid side is open If the 3 way valve liquid side was closed open the 3 way valve liquid side and check operation OK Detective Actuators Detective...

Page 69: ...n the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding 02 36 2 3 TROUBLE SHOOTING WITH NO ERROR CODE Check Point 3 Check Electrical Components YES YES NO Check the voltage of power supply Check if AC216 264V appears at Outdoor Unit Terminal L N ...

Page 70: ...us in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check the voltage of power supply Check if AC216 264V appears at Outdoor Unit Terminal L...

Page 71: ... check correct followings Is there loose or removed communication line of Indoor Unit and Outdoor Unit Instant drop Check if there is a large load electric apparatus in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipme...

Page 72: ...w route Check clogged Heat Exchanger Is the Valve open Is capacity of Indoor unit fitted to Room size Any windows open Or direct sunlight Check connection pipe specified pipe length Pipe diameter Check any loose or removed communication line If there is an abnormal condition correct it by referring to Installation Manual or Data Technical Manual Check if Strainer is clogged Refer to the figure at ...

Page 73: ...mal Is Fan broken or deformed Is the screw of Fan loose Is there any object which obstruct the Fan rotation Is Main Unit installed in stable condition Is Fan Guard installed normally Check if vibration noise by loose bolt or contact noise of piping is happening Is Compressor locked Check Compressor PARTS INFORMATION 1 2 Water Leaking 1 Erroneous installation 2 Drain hose failure Diagnosis method w...

Page 74: ... or less oil Replace Compressor Replace Compressor Replace Compressor Stops soon after starting up Is there open or loose connection cable Is Gas Pipe Valve open Low Pressure is too low Check if Refrigerant is leaking Recharge Refrigerant Check if Strainer is clogged PARTS INFORMATION 3 If there is no failure the defect of Compressor can be considered Compression part broken or valve defective Abn...

Page 75: ...heck winding resistance of each terminal If the resistance value is 0 or infinite replace Compressor If Check Point 1 2 do not improve the symptom replace Main PCB U R RED V S WHITE W C T BLACK Transistor PCB IPM Check connection of Transisitor PCB IPM Loose or incorrect wiring TM303 TM304 TM305 RED WHITE BLACK Compressor Transistor PCB IPM Resistance Value 0 642 at 20 C 02 42 AMP Air Conditioning...

Page 76: ...en cable Remove connector check each winding resistance of Coil If Resistance value is abnormal replace EEV Remove Connector and check Voltage DC12V If it does not appear replace Main PCB Turn on Power and check operation noise If an abnormal noise does not show replace Main PCB When Valve is closed it has a temp difference between Inlet and Outlet If it is open it has no temp difference between I...

Page 77: ...th terminal GND Control voltage Vcc Speed command Vsp Feed back FG Pin number wire color Terminal function symbol 1 2 3 4 5 6 7 B D Red Black White Yellow Blue C voltage Vm No function No function Earth terminal GND Control voltage Vcc Speed command Vsp Feed back FG SERVICE PARTS INFORMATION 4 Check Point 1 Check rotation of Fan Indoor unit fan motor Rotate the fan by hand when operation is off Ch...

Page 78: ... 1 0 76M Ref value 2 SACT32010 HITACHI LACT33020 HITACHI PM 604 FGEL PM 703 FGEL PM 601 FGEL 360k 20 0 900k 20 1 01M Ref value 1 0 76M Ref value 2 540k 20 1 65M Ref value 1 1 14M Ref value 2 LOT No 1302931396 LOT No 1302931395 PM 601 FGEL Type A Type B Table 1 Each type standard value multimeter IN N1 N IN IN N1 N is FGEL terminal name L2 P P L2 Terminal Resistance value 1 32M Ref value 1 0 66M Re...

Page 79: ...3 3 17 Suenaga Takatsu ku Kawasaki 213 8502 Japan Oct 2015 Printed in Japan AMP Air Conditioning www ampair co uk sales ampair co uk ...

Page 80: ...en the following terminals Set the tester to the Diode mode and measure the voltage value between the following terminals Judge the result of as follows Judge the result of as follows TM301 P TM305 U TM304 V TM303 W TM302 N TM305 U TM304 V TM303 W P P P U V W N N N U V W U V W P P P U V W N N N Over 2k Including Over 2k Including Over 20k Including Terminal Tester display Tester Tester P P P U V W...

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