Carrier 38BNB Owner's Manual

Contents

Carrier 38BNB Owner's Manual Manual pdf 10 page image

10TROUBLESHOOTING GUIDEYour air conditioner is very reliable and requires little maintenance. However, the air conditioner’s proper operation can be interrupt-ed by a malfunction in the electrical system or by incorrect operation. You can try to overcome these simple malfunctions yourself, withthe aid of the following table and the malfunction displays shown in Fig. 16.PROBLEM POSSIBLE CAUSE SOLUTIONAir conditioner does not work. • No command is transmitted to air conditioner. • Press the On/Off (Transmission) button.• Air conditioner did not receive transmittedcommand.• Make sure that remote controller is pointed at airconditioner during command transmission.POWER indicator light is not lit. • Air conditioner is not properly connected. • Check electrical connection.• Automatic interrupter switched Off. • Reset interrupter.• Fuse burned. • Replace fuse.FILTER indicator light is lit. • Filters require cleaning. • Remove and clean filters.• For 40BN036 move operation switch to OFFposition for 5 sec. and return it to REMOTE.• For 40BN018,024,030 press the operation pushbutton continuously for 5 seconds.Air conditioner is working, butdoes not perform the requiredoperation.• Desired temperature setting is higher thanroom air temperature when operating in theCOOLING mode.• Lower the desired temperature setting.• Desired temperature setting is lower than roomair temperature when operating in the HEATINGmode.• Raise the desired temperature setting.(ON)/(AIR COND). Indicator light iscontinuously flashing.• The control system is malfunctioning. • For 40BN036 slide the operation switch to OFFposition for 5 sec. and return it to REMOTE.• There is no direct line of sight betweenthe remote controller and the air conditioner.• For 40BN018,024,030 press the operation pushbutton, continuously for 5 seconds. Press onceagain to operate the air conditioner.• The air conditioner has reached the desiredtemperature and stopped the compressor oper-ation (thermostat function).Various indicator lightsbehave differently thanshown in Fig. 13.• Incorrect operation or malfunction. • For 40BN018,024,030 press the operation pushbutton continuously for 5 seconds.• For 40BN036 slide the operation slide switchto OFF position for 5 sec. and return it toREMOTE.• Restart the air conditioner, if the problem per-sists, call service personnel.Air conditioner does not operatewith the remote controller.• In 40BN036 the operation push button is inAUTO or OFF. (For 40BN018,024,030 go tonext bullet.)• For 40BN036 turn the operating switch toREMOTE position.• The remote controller batteries are weak. • Replace the batteries.• The remote controller is malfunctioning. • Turn the air conditioner On and OFF using theoperation push button or slide switch.The remote controller of anotherair conditioner interferes withyour air conditioner’s operation.• Both remote controllers are transmittingon the same wavelength.• Call service personnel.