AIR CONDITIONER - Heronhill Air Conditioning Ltd

FILE NO. SVM-05020Cooling ModelOperationCheck ItemsShut off the power supplyfrom AC outlet once andturn it on after 5 seconds.Main causeCountermeasureSymptomNODoes the OPERATIONlamp blink?Does the fuse(F01) blow?NOYESDoes the power turn onby pushing the [ ]button of the remotecontrol?YESYESNODoes the transmissionindicator of remotecontrol flash normallyand transmit certainly?NO Remote control isdefective.(No problem)Parts (R21, R22, SG01,C15, C01, DB01, C50,TT-10) are defective.YESReplace the remotecontrol.Does the thermalfuse blow?(Under PF. Terminal)YESWrong wiring ofAC cord or connectingcable is defective.Replace thethermal fuse set.Check connection.NONOIs the indication voltage(DC12V or 5V) of mainP.C. board correct?YESDoes the CN14connector the wrongconnecting?NOP.C. board isdefective.Replace the mainP.C. board.Is the voltageacross C50 measuredDC12V ~ 15V?NORefer to the paragraph"Pre-check", or defective circuitbefore power P.C. board block.YESRe-wiring the cable.YESIs the secondaryvoltage oftransformer (TT-10)measured DC10~16V?YESNOShut off the powersupply once, and turnit on again afterdisconnecting the motorconnector CN10*.Is the secondaryvoltage oftransformermeasured DC10~16V,?YESNOtransformer (TT-10)for power supply isdefective.Replace the mainP.C. board.Motor is defective.* Be sure to disconnect the motor connector CN10 after shut off the power supply, or it will be a cause of damage of the motor.– 58 −