38
The air conditioner running status when temp sensor is abnormal.
Faults & self-diagnoses
Model
Name of sensors
Operation mode
Short circuit
Open circuit
Room temp sensor
Indoor coil temp sensor
cooling
Heating
Auto
cooling
Heating
Cooling ok
Heating ok
Cooling:always ice protection
Heating:always under cold air
avoid mode
Continuous running in cooling mode.
Don't control the temp start/stop.
Indoor fan unit :starting.High speed
running in auto.
Can't heating operate
Compressor,indoor & outdoor fan
stop
Can not run in cooling mode
Indoor motor continuous run
Compressor & outdoor fan stop
Continuous running in heating mode.
Don't control the temp start/stop.
Indoor fan unit :starting.High speed
running in auto.
Cooling mode ok
Continuous under ice avoid mode
Continuous under the mode of
cooling 10 minutes and stop 3
minutes later.
Can not run in heating mode
Compressor,outdoor fan motor:
start
Indoor fan motor:stop
Cold air avoid
Can not run in heating mode
Continuous under heating over
-load protection.Indoor fan
start and run at high speed
during auto mode
Compressor,outdoor fan motor:stop
Indoor
unit
Operation
mode
Auto
Can not run in cooling mode
Indoor motor continuous run
Compressor & outdoor fan stop
Heating:can not run in heating mode
Continuous under heating over-load
protection.
Cooling:ok(Continuous under ice avoid mode)