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PROBLEM POSSIBLE CAUSE TO CORRECT
Defective motor. Check and replace.
Open or shorted capacitor. Replace capacitor and check.
Condenser fan frozen to Chassis. Check if drain pan valve is open. If not,
replace.
Fan motor
does not
operate in
"Constant"
speed or
"Auto” speed.
Loose connections. Check all connections. Check voltage to fan
motor.
Fuse link. Check fuse link for continuity. If defective,
replace.
Heating element shorted. Check amperage draw of element. If no
amperage, replace.
Incorrect wiring. Check voltage to element. If voltage is okay,
check wiring.
Unit does not
heat.
Heat relay or heater contactor coil
open.
Defective coil. Test coil for continuity.
Service Manual
Room Air Conditioner with R-410A
Heat Controller, Inc.
33