12.07.2015 Views

AIR CONDITIONER - Heronhill Air Conditioning Ltd

AIR CONDITIONER - Heronhill Air Conditioning Ltd

AIR CONDITIONER - Heronhill Air Conditioning Ltd

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

FILE NO. SVM-050209-5-7. Only the indoor fan does not operateHeat Pump ModelShut off thepower supply once.Turn the power supply.Does the fan stop inno operating status?NOControl P.C. board is defective.Replace the P.C. board.YESStart the operationwith low fan settingin cool operation.Does the fan rotate?YESNODoes AC 120Vor higher voltage applyto between red and blacklead of fan motor?YESNODoes connectingterminal, connectingcable or power supplycord completely?Does not found the shortwire about connectingcable and power cord?NOShut off the power supply.YESChange the setting ofcooling to high fan.Does the cross flowfan rotate normally?YESNORepair thebearing ofthe fan.Thermal fuse operateddue to preventtemperature rising causeof incompleted connecting.Turn on the power supply.Does the fan speedbecome higher?NOOperationstopsMotor control circuit failure(IC30, IC03, D38, R25, R26, Q17)or 12V power circuit failure.YESReplace the P.C. board.Is the rotation signal (DC+5V-0V)output between 2 (gray lead wire)and 3 (brown lead wire) of the motorconnector (CN11) when rotatingthe cross flow fan by hand in nooperating status?(1 pulse/one turn)YESNOReplace the fan motorNormalReplace the controlP.C. board.Replace connectingthe cable (or power cord),thermal fuse andterminal block.− 64 −

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!