Carrier 42NQ009N Service Manual

Contents

− 52 −9-6. Troubleshooting for Remote Control (Including the Indoor P.C. Board)FILE NO. SVM-10036Push the [ ] button.Does the transmissionindicator blink?YESYESYESYESYESYESYESIs there directsunlight on thereceptor of the airconditioner?Avoid directsunlight.Is there anythyristorfluorescent lightnearly?Keep the airconditioner awayfrom thyristorfluorescent light.NONONO NONONONONOIs operation possiblewhen setting thetemporary switch of theair conditioner main unitto “TEST RUN” or“TEMPORARY AUTO”?Can any signal tonebe heard in a transistorradio when transmittingwithin 5 cm distancefrom the radio?P.C. board is failure.ReplaceP.C. boardIs operationpossible when thetransmitter is movednearer to the infraredsignal receiver of theair conditioner?Battery lifeReplace thebatteriesReset the remote controlby take off batteriesDose thetransmissionindicator light?Is there anybeep andoperation?NormalRemote controlis failure.Replace remotecontrol.Push the [ ]buttonYESThere is no beep from the indoor unitThe OPERATION lamp of theair conditioner main unit does not lightNote : Atter batteries replacement, short circuit the metal terminalat the side of the battery compartment.