Compressor Or Outdoor Fan Does Not Operate At All - Friedrich CEW18B33A Service Manual

Compressor Or Outdoor Fan Does Not Operate At All

Compressor or outdoor fan does not operate at all.
25
TROUBLESHOOTING
Re-input after power failure
Set the desired temperature of remote controller to be 4°F lower
than room temperature, and start the cooling operation.
Does not operate at all.
Temperature sensor
open/short check
Connector check
(Contact & power)
Disconnection/short
circuit check of
connecting wire
Electric wire connection
check for outdoor side
Compressor & motor
detail check
Insulation resistance
Coil resistance
Capacitor capacity
Compressor OLP
Repeat running/stopping
at a short time period.
Thermistor and evaporator
surface contact check.-
Clearance is needed (5mm).
Connector check
(Contact & power)
OLP/High pressure
switch/Low pressure
switch check
Operation mode
(dehumidifying) check
PCB assy check
Check:
Temperature sensing circuit
Relay output
Figure 403