Fujitsu AB*G30LRTE series Service Instruction Download Page 49

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02-22

Trouble shooting 20

OUTDOOR UNIT Error Method:

Detective Actuators:

Detective details:

Forecast of Cause:

Check Point 3 : Check Outdoor unit fan motor

Outdoor Unit Fan Motor Error

Outdoor unit Main PCB

Outdoor unit fan motor

1. Fan rotation failure 2. Motor protection by surrounding temperature rise 3. Main PCB failure

4. Outdoor unit fan motor failure

Check Point 1 : Check rotation of Fan

Rotate the fan by hand when operation is off.

(Check if fan is caught, dropped off or locked motor)

>>If Fan or Bearing is abnormal, replace it.

Check Outdoor unit fan motor.

(PARTS INFORMATION 5)

>>If Outdoor Fan Motor is abnormal, replace Outdoor fan motor and Main PCB.

Check Point 4 : Check Output Voltage of Main PCB

Check outdoor unit circuit 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

permanently.

Check Point 2 : Check ambient temp. around motor

Check excessively high temperature around the motor.

(If there is any surrounding equipment that causes heat)

>>Upon the temperature coming down, restart operation.

Indicate or Display:

Refer to error code table.

Read wire DC voltage

Red - Black

280V (AC220V-10%)~ 373V (AC240+10%)

White - Black

15 1.5V

CN800

BLACK
WHITE

YELLOW

BROWN

RED

FAN MOTOR

Summary of Contents for AB*G30LRTE series

Page 1: ...ROOM AIR CONDITIONER Models Indoor unit Outdoor unit AO G30LETL AO G36LETL SERVICE INSTRUCTION R410A AU G30LRLE AR G30LMLE AB G30LRTE AU G36LRLE AR G36LMLE AB G36LRTE Cassette type Duct type Ceiling type INVERTER ...

Page 2: ...ON CONTROL 01 20 23 VARIOUS PROTECTIONS 01 21 15 FORCED COOLING OPERATION 01 15 24 COMPRESSOR STOP CONTROL 01 22 01 14 14 MANUAL AUTO OPERATION 01 15 16 COMPRESSOR PREHEATING 01 16 17 10 C HEAT OPERATION 01 16 19 FRESH AIR CONTROL 01 16 20 DRAIN PUMP OPERATION 01 17 2 1 2 WIRED REMOTE CONTROLLER DISPLAY 2 1 1 INDOOR UNIT WIRED REMOTE CONTROLLER DISPLAY 2 1 ERROR DISPLAY 2 TROUBLE SHOOTING 2 2 TROU...

Page 3: ...1 DESCRIPTION OF EACH CONTROL OPERATION R410A Cassette Duct Ceiling type INVERTER ...

Page 4: ... 30 C 21 C C zone 19 C D zone Hi Me Lo Quiet A zone 72rps 72rps 65rps 50rps 50rps 50rps 59rps 59rps 50rps 44rps 44rps 44rps 50rps 50rps 44rps 39rps 39rps 39rps 39rps 39rps 39rps 35rps 35rps 35rps B zone C zone 30LETL 36LETL D zone E zone F zone Table 1 Compressor Frequency Range When the compressor operates for 30 minutes continuously at over the maximum frequency the maximum frequency is changed ...

Page 5: ...f the setting temperature the compressor frequency is controlled within the range shown in Table 2 Table 2 Compressor Frequency Range 01 02 minimum frequency maximum frequency AO G30LETL AO G36LETL 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 ...

Page 6: ...uto changeover operation NO NO Thermostat remains in OFF state for 6 minutes or longer System stops or operation command other than auto changeover operation YES YES When the air conditioner is set to the AUTO mode by remote control operation starts in the optimum mode from among the HEATING COOLING DRY and MONITORING modes During operation the optimum mode is automatically switched in accordance ...

Page 7: ...eed rpm 1270 980 790 630 420 420 Cooling High High 1130 980 790 630 420 Med Med Med Heating Fan Low Low Quiet Quiet Dry S Low Cool air prevention AR G30LMLE S Lo Note during Economy operation and operation mode is Fan air flow is 1 step downs High Med Med Low Low Quiet Quiet Soft Quiet 630 AR G36LMLE Operation mode Air flow mode Speed rpm 1000 1000 910 750 650 500 250 Cooling Fan High High 1000 91...

Page 8: ...emperature 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 4 DRY OPERATION Refer to the Table 4 During the dry mode operation the fan speed setting can not be changed 5 HEATING OPERATION Switch the airflow AUTO and the indoor fan motor will run according to a room temperature as shown in Fig 4 On the other hand if switc...

Page 9: ... 30 C 34 C Indoor heat exchanger temperature rises Indoor heat exchanger temperature drops High Med or setting fan mode Low or setting fan mode Low or setting fan mode Low or setting fan mode 39 C 37 C 37 C 32 C 24 C Lower speed is selected 42 C 30 C 34 C Indoor heat exchanger temperature rises Indoor heat exchanger temperature drops High Med or setting fan mode Low or setting fan mode 39 C 37 C 3...

Page 10: ... operation starts the indoor fan runs according to cool air prevention control for 20 seconds And the fan is stopped if 20 seconds have passed When 60 seconds have passed after defrost operation is released the fan runs according to cool air prevention control 9 DEFROST OPERATION 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...

Page 11: ...2 Fan Speed AC Motor DC Motor AO G30 36LETL The Table 6 shows the type of the outdoor fan motor The control method is different between AC motor and DC motor Table 6 Type of Motor 900rpm Fig 7 Outside air temperature zone selection 12 C 0 C Outside air temperature Outside air temperature F zone D zone G zone H zone 2 C 8 C 10 C 10 C Table 7 Outdoor fan speed Cooling Heating AO G30LETL AO G36LETL A...

Page 12: ...AO G30 36LETL AO G30 36LETL 16rps 72rps 16rps 90rps 39rps 39rps 30rps 47rps 60rps Table 9 Compressor Operation Frequency Range 2 OPEARTION FREQUENCY CONTROL AT NORMAL START UP The compressor frequency soon after the start up is controlled as shown in the Fig 8 Fig 8 Compressor Control at Start up Time Time Time Frequency Frequency Frequency Frequency Frequency Frequency Frequency Time Time Time 60...

Page 13: ...ration mode Stop mode Set time of 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...

Page 14: ...ion In the cooling operation mode When the sleep timer is set the setting temperature is increased 1 C It increases the setting temperature another 1 C after 1 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 In the heating operation mode When the sleep timer is set the setting temperature is decreased 1 C It decr...

Page 15: ... the set time the air conditioner will be turned on Operation mode Stop mode Set time of timer The weekly timer allows up to two ON and OFF time to set up per day Use this timer function to set operating time for each day of the week Operation mode The operating time can be set in 30 min increments only The OFF time can be carried over to next day The ON timer and the OFF timer functions cannot be...

Page 16: ...lly 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 2 2 DAY OFF setting 3 TEMPERATURE SET BACK TIMER Stop mode Stop mode Operation mode Stop mode Operation mode Preceding day Next day DAY OFF Stop mode Stop mode Operation mode Stop mode Operation mode DAY OFF Set...

Page 17: ...nd timer lamp of the air conditioner body twinkle simultaneously Wired remote controller If the operation lamp is on press the START STOP button to turn it off Press the MODE and FAN buttons at the same time for more than two seconds to start the test operation The operation lamp will light up and o1 will be displayed on the set temperature display Release Perform the test operation for 60 minutes...

Page 18: ... 14 Forced cooling operation Cooling Hi Initial Horizontal It is changed follow as setting of remote controller OFF Room Temp is not controlled If cooling operation is set the operation is controlled as shown in Table 14 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 sta...

Page 19: ...tion functions by pressing 10 C HEAT button on the remote controller The 10 C HEAT operation is almost the same operation as below settings Mode Heating Setting temperature 10 C Fan mode AUTO Table 15 18 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 ...

Page 20: ...at switch turns OFF less than 3 minutes the unit starts Cooling operation 1 2 1 When the water level in the drain pan rises up and then the float switch functions Drain pump operates continuously for 3 minutes after the float switch is turned off Almost condensing water may be drained 2 When the float switch turns ON continuously for 3 minutes FAILURE INDICATION operates Thereafter even if the flo...

Page 21: ... contiguous operation time Defrost operation is released when the conditions become as shown in Table 18 Table 18 Defrost Release Condition Operation temperature Below 10 min Above 10 min Less than 35 min 35 min to 215min 215 min to 4 hours Does not operate 6 C 5 C More than 4 hours 3 C Compressor integrating operation time Compressor contiguous operation time Operation temperature Below 10 min Ab...

Page 22: ... operation Over 240 minutes Compressor integrating operation Over 62 minutes to below 240 minutes Outdoor HEX temp Below 9 C Outdoor HEX temp Below 5 C Outdoor HEX temp Below 3 C In case of 1st defrost In case of 2nd and later defrost Outdoor temp Outdoor HEX temp Above 5 C Compressor integrating operation Over 35 minutes to below 215 minutes Outdoor HEX temp Below 6 C Compressor integrating opera...

Page 23: ...C compressor continuous operation 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 Indicator Operation lamp 7 sec ON 2 sec OFF Outdoor heat excha...

Page 24: ...s to the designated frequency of the indoor unit at the time when the frequency becomes lower than the release value Table 20 Current Release Operation Value Release Value 01 21 Heating T0 Outdoor Temperature Cooling AO G30LETL AO G30LETL T0 Control Release 9 0A 8 5A 10 0A 9 5A 12 5A 12 0A 14 5A 14 0A 50 C 46 C 40 C T0 Outdoor Temperature T0 Control Release 10 0A 9 5A 11 5A 11 0A 14 5A 14 0A 14 5A...

Page 25: ...ps every 120seconds The compressor frequency is decreased 15rps 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 of compressor stop 7 HIGH PRESSURE PROTECTION When the pressure switch becomes OFF Open higher th...

Page 26: ......

Page 27: ...2 TROUBLE SHOOTING R410A Cassette Duct Ceiling type INVERTER ...

Page 28: ...rain Pump Error Discharge Thermistor Error Heat Ex Liquid Outlet Thermistor Error Outdoor Thermistor Error Compressor Thermistor Error Please refer the flashing pattern as follows The OPERATION TIMER ECONOMY lamps operate as follows according to the error contents 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Continuous 8 times 4 times Current Sensor Error Continuous 8 times 6 times ...

Page 29: ...zed error codes may be displayed for the indoor unit connected to the remote controller 1 Stop the air conditioner operation 2 Press the SET TEMPERATURE buttons simultaneously for 3 seconds or more to start the self diagnosis 4 Press the SET TEMPERATURE buttons simultaneously for 3 seconds or more or there is no key input for 60 seconds to stop the display 3 Press the SET TEMPERATURE button to sel...

Page 30: ...ition correct it by referring to Installation Manual or Data Technical Manual Check connection condition in control unit If there is loose 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 When the indoor unit cannot receive the serial signal from Outdoor...

Page 31: ...ection line of between indoor unit and outdoor unit If there is an abnormal condition correct it by referring to Installation Manual or Data Technical Manual Check connection condition in control unit If there is loose 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...

Page 32: ... 3 Controller PCB failure Check correct the followings Check the connection of terminal between Wired Remote Controller and indoor unit and check if there is a disconnection of the cable When the indoor unit cannot properly receive the signal from Wired Remote Controller for 1 minute or more 02 05 Refer to error code table If it is DC12V Remote Control is failure Controller PCB is normal Replace R...

Page 33: ... Check if there is any equipment that causes harmonic wave near the power cable Neon light bulb or any electronic 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 volta...

Page 34: ...ds 1 Manual Auto Switch failure 2 Controller PCB and Indicator PCB failure Check Point 1 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 ...

Page 35: ... 10 0 12 5 15 8 20 2 25 9 33 6 4 3 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 02 08 Trouble shooting 6 INDOOR UNIT Error Method Indicate or Display Indoor Room Thermistor Erro...

Page 36: ...r 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 02 09 Trouble shooting 7 INDOOR UNIT Error Method Indicate or Display Indoor Heat Ex Thermistor Error Refer to error code table 31 7 39 6 49 7 62 9 80 3 103 3 134 2 176 0 17 1 20 8 25 6 Resistance valu...

Page 37: ...tate the fan by hand when operation is off Check if fan is caught dropped off or locked motor If Fan or Bearing is 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 t...

Page 38: ... by using a meter If Float switch is abnormal replace it ON OFF OK Forecast of Cause 1 Float switch failure 2 Shorted connector wire 3 Controller PCB failure 4 Drain pump failure 5 Hose clogging Check Point 2 Check Connector CN 9 Wire Check loose contact of CN9 shorted wire pinched wire Replace Float switch if the wire is abnormal Check Point 4 Check Controller PCB If Check Point 1 3 do not improv...

Page 39: ...Check Point 3 Replace Main PCB If Check Point 1 2 do not improve the symptom change Main PCB Check Point 1 Check external cause at Indoor and Outdoor Voltage 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 c...

Page 40: ...r Fan Heat Exchanger Is there anything obstructing the air distribution circuit Is there any 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 20 If the Fan Motor is failure replace it Check Point 4 Check Compressor PARTS INFORMATION 2 Check Compressor If Check Point 1 4 do no...

Page 41: ...ck Point 1 Check connection of connector Check if connector is removed Check if connector 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 Chec...

Page 42: ... 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 02 15 Refer to error code table 17 8 26 3 20 40 0 62 5 79 1 100 9 129 8 168 6 Resistance value k 15 10 1013 1 30 531 6 20 292 9 10 221 1 5 5 0 Temperature C 12 3 30 50 40 60 2 0 3 4 4 6 6 3 8 7 Resistance value k 120 100 90 8...

Page 43: ...ing 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 02 16 Refer to error code table 7 7 5 9 7 12 4 16 1 20 9 27 5 49 2 Resistance value k 0 5 10 20 92 3 30 Temperature C 10 15 0 9 1 2 1 8 2 6 3 9 Resistance value k 70 0 6 80 0 5 90 60 50 40 30 6 1 20 T...

Page 44: ... connector Check if connector is removed Check if connector 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 02 17 Refer to error code table OK...

Page 45: ...e 1 Defective connection of electric components 2 External cause 3 Main PCB failure 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 h...

Page 46: ...ristics failure 3 Main PCB failure When pressure switch open is detected in 10 seconds after the power is turned on 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 chec...

Page 47: ...ion defective foreign matter on hear exchanger excessive rise of ambient temperature 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 a...

Page 48: ...n correcting the removed connector or mis wiring reset the power Refer to PARTS INFORMATION 2 For Compressor 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 compr...

Page 49: ...k Output Voltage of Main PCB Check outdoor unit circuit 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 repeat...

Page 50: ...ion is not proper replace 4 way valve OK OK Check Point 4 Replace Main PCB If Check Point 1 3 do not improve the symptom replace Main PCB Check Point 2 Check thermistor of Indoor unit Isn t it fallen off the holder Is there a cable pinched Check characteristics of thermistor Refer to Trouble shooting 6 7 If defective replace the thermistor Indoor unit Controller PCB Heat exchanger temperature ther...

Page 51: ...heck Point 2 Check the EEV strainer Check Point 5 Check the refrigerant 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 24 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 valv...

Page 52: ...gging 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 25 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 details Forecast of Cause Trouble shooting 2...

Page 53: ... 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 02 26 2 3 TROUBLE SHOOTING WITH NO ERROR CODE Check Point 3 Check Electrical Components Check the voltage of power supply Check if AC216 264V appears at O...

Page 54: ...age 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 Check the ...

Page 55: ...al Manual Turn off Power and 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 N...

Page 56: ...ts that obstruct the air flow 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 clo...

Page 57: ...on grille and front panel normal 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 ho...

Page 58: ...mpressor due to clogged dirt 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 b...

Page 59: ... of Compressor Loose or incorrect wiring Check 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 T BLACK Main PCB Check connection of Transistor PCB IPM Loose or incorrect wiring TM303 TM304 TM305 RED WHITE BLACK Compressor Main PCB Resistance Value 0 642 8 at 20 C ...

Page 60: ...ble 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 Inlet ...

Page 61: ...oltage 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 Check if fan is caught dropped off or locked motor If Fan or Bearing is abnormal replace it Check Point 2 Check resistance of Indoor Fan Motor Refer to below Circuit...

Page 62: ......

Page 63: ...3 APPENDING DATA R410A Cassette Duct Ceiling type INVERTER ...

Page 64: ...he setting values in the table below according to the height of the ceiling Factory setting Setting Description Function Number Setting Value Standard 2 500 hours Long interval 4 400 hours Short interval 1 250 hours No indication 11 00 01 02 03 1 1 Setting the Filter sign The indoor unit has a sign to inform the user that it is time to clean the filter Select the time setting for the filter sign d...

Page 65: ... room temperature sensor may require a correction The settings may be changed as shown in the table below 1 6 Setting the Cooler room temperature correction Factory setting Setting Description Function Number Setting Value Standard Slightly lower control Lower control Warmer control 30 00 01 02 03 Depending on the installed environment the room temperature sensor may require a correction The setti...

Page 66: ... remote controllers Factory setting Setting Description Function Number Setting Value A B C D 44 00 01 02 03 1 11 Setting the External input control Operation Stop mode or Forced stop mode can be selected Factory setting Setting Description Function Number Setting Value Operation Stop mode Setting forbidden Forced stop mode 46 00 01 02 1 12 Indoor unit fan control for energy saving Enable or disab...

Page 67: ...ultaneously again for more than 5 seconds to cancel the function setting mode In addition the function setting mode will be automatically canceled after 1 minute if no operation is performed Unit number of Indoor unit Function number SU MO TU WE TH FR SA Setting value Settings will not be changed if invalid numbers or setting values are selected The settings may be selected between the following t...

Page 68: ...l code of the remote controller Note that the air conditioner cannot receive a signal code if the air conditioner has not been set for the signal code The signal code that is set through this process are applicable only to the signal in the FUNCTION SETTING For details on how to set the signal code through the normal process refer to REMOTE CONTROLLER SIGNAL CODE SETTING Function Number Setting Va...

Page 69: ...is case start again from step 1 Use the following steps to select the signal code of the remote controller Note that the air conditioner cannot receive a signal code if the air conditioner has not been set for the signal code REMOTE CONTROLLER SIGNAL CODE SETTING The remote controller resets to signal code when the batteries in the remote controller are replaced If you use a signal code other than...

Page 70: ...0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 50 0 55 0 60 0 65 0 70 0 75 0 80 0 85 0 90 0 95 0 100 0 105 0 110 0 115 0 120 0 30 0 25 0 20 0 15 0 10 0 5 0 0 0 5 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 50 0 55 0 60 0 65 0 70 0 75 0 80 0 85 0 90 0 30 0 25 0 20 0 15 0 10 0 5 0 0 0 5 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 50 0 55 0 60 0 65 0 70 0 75 0 80 0 1013 1 729 1 531 6 392 3 292 9 221 1 168 6 129 8 ...

Page 71: ...1116 Suenaga Takatsu ku Kawasaki 213 8502 Japan Apr 2013 Printed in Japan ...

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