msz-gc35va

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10-6. Troubleshooting flowWhen OPERATION INDICATOR lamp flashes 3-time. Indoor fan does not operate.A Check of indoor fan motorTurn OFF the power supply.Check connector CN211 visually.Reconnect the lead wires.NoAre lead wires connected?YesAre soldered points of theconnector correctly soldered toindoor power P.C. board?NoResolder it.Disconnect the lead wires from connector CN211 on indoor power P.C. board.Measure the resistance between lead wires No.1 and No.4 and then No.4 and No.7.YesIs the resistance 0 (short circuit) or ∞ (open circuit)?Yes ( 0 or ∞ )No(others)Turn ON the power supply. Rotate indoor fan slowly for 1 revolutionor over with a screwdriver etc. from air outlet, and measurethe voltage No.2(+) and No.1(-) on CN121.Replace the indoor fan motor.NoDoes the voltage repeat 0V DC and 5V DC?Indoor terminalP.C.boardIndoor power P.C.boardYesReplace the indoor power / terminal P.C. boardand the indoor electronic control P.C. board.Fuse (F11)Varistor(NR11)CN121CN211Indoor unit operates by pressing EMERGENCY OPERATION switch, but does not operate with the remote controller.B Check of remote controller and indoor electronic control P.C. boardwCheck if the remote controller is exclusive for this air conditioner.Press OPERATE/STOP(ON/OFF) button on the remote controller.Is LCD display on the the remotecontroller visible?YesNo(not clear)Replace the batteries. (Refer to 10-1.4.)Remove the batteries, then set them backand press RESET button. (Refer to 10-1.4.) Check if the unit operates with theremote controller.Does the unit operate with theremote controller?YesNoTurn ON a radio to AM and pressOPERATE/STOP(ON/OFF) button on the remote controller.OKIs noise heard from radio?NoReplace the remote controller.YesAre there any fluorescent lights ofinverter or rapid-start type withinthe range of 1m?Yes● Reinstall the unit away from lights.● Attach a filter on receiving part.NoReplace the indoor electroniccontrol P.C. board.(including the receiver)20
The unit does not operate with the remote controller.Also, OPERATION INDICATOR lamp does not light up by pressing EMERGENCY OPERATION switch.C Check of indoor P.C. board and indoor fan motorTurn OFF the power supply.Remove indoor fan motor connector CN211 from indoorpower P.C. board and vane motor connector CN151from the indoor electronic control P.C. board and turnON the power supply.Measure the resistanceRefer to 10-5 of indoor fan motor.Short circuit:Replace the indoor fan motor.YesDoes the unit operate with the remote controller?Does OPERATION INDICATOR lamp light up bypressing EMERGENCY OPERATION switch?NoMeasure the resistance of the vane motor coil.Refer to 10-5.Short circuit:Replace the vane motor and the indoorelectronic control P.C. board.Replace the varistor(NR11) and fuse(F11). wYesTurn OFF the power supply.Check both “parts side” and “patternside” of the indoor terminal P.C.board visually.Are the varistor (NR11) burntand the fuse (F11) blown?Be sure to check both the fuseand the varistor in any case.Is the fuse (F11) blown only?NoNoYesMeasure the resistance ofindoor fan motor.Refer to 10-5.Is the resistance normal?NoReplace the fuse (F11) and the indoor fan motor. wYesReplace the fuse (F11). ww. Please replace the fuse after removingthe indoor terminal P.C. board from the electrical box.Measure the resistance of cementresistor R111 on the indoor powerP.C. board.Is the resistanceapprox. 4'?NoReplace the indoor power / terminal P.C. boardand the indoor fan motor.YesIndoor electroniccontrol P.C.boardJPG (GND)Is the approx. 5VDC between 5V (+)and JPG(GND) (–) of the indoorelectronic control P.C.board? Is thereapprox. 9V to 13VDC between 12V (+)and JPG (GND) (–) of the indoorelectronic control P.C. board.YesReplace the indoor fan motor.CN10ANoIndoor terminalP.C.boardIndoor power P.C.board12VDC5VDCAre connector CN10A onthe indoor electronic controlP.C. board or lead wiresdisconnected?NoYesConnect the connector or repairdisconnection.R111Fuse (F11)Replace the indoor power / terminal P.C. board.Varistor(NR11)CN21121
Page 1 and 2: SPLIT-TYPE, HEAT PUMP AIR CONDITION
Page 3 and 4: MSZ-GC22VAMSZ-GC25VAMSZ-GC35VAACCES
Page 5 and 6: 5OUTLINES AND DIMENSIONSMSZ-GC22VAM
Page 7 and 8: 8SERVICE FUNCTIONSMSZ-GC22VAMSZ-GC2
Page 9 and 10: 9MICROPROCESSOR CONTROLMSZ-GC22VAMS
Page 11 and 12: NOTE 2FOR MULTI SYSTEM AIR CONDITIO
Page 13 and 14: 2. To release the timerTo release O
Page 15 and 16: 10-2. Failure mode recall functionO
Page 17 and 18: 10-3. Instruction of troubleshootin
Page 19: OPERATION INDICATORNo.1Abnormalpoin
Page 23 and 24: When All lamps flash ON and OFF eve
Page 25 and 26: 10-7. Test point diagram and voltag
Page 27 and 28: OPERATING PROCEDURE2. Removing the

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