CVP09FX
6 – 6
Connect the connector
properly.
Turn off the power
supply.
Measure the contact
resistance.
short
open
OK
NG
Change the thermistor.
Change PWB ass'y.
The compressor doesn't
turn off.
Check the thermistor
connector.
Check the thermistor
resistance.
Check the compressor
relay.
OK
NG
disconnecting
OK
OK
NG
Checking complete.
Checking method for the compressor relay.
(RY1 and PWB)
Insufficient cool air (Compressor and fan motors running)
Temperature set to high?
Reset temperature to a lower setting
Air filter or heat exchanger clogged?
Clean
Unit is located to close to another heat source?
Move other heat source
Exhaust hose is bent or expanded
unnecessarily ?
Adjust properly
Another object obstructing exhaust
outlet?
Compressor runs discontinuously?
Remove obstruction
Thermister attached incorrectly?
Error light is on?
Refer to the manual,
[3] Funtion
11.Diagnostic program
Attach correctly
Room temperature out of
operation range ?
Remove heat source and ventilate
room
Power supply voltage too low?
Unplug other appliances
Variation in temperature of
discharge pipe and Suction pipe
too low?
Refrigerant leakage, repair or
change the refrigeration cycle
Frost accumulation around
capillary tube outlet and/or
evaporator inlet ?
Lower power current than
normal?
Refrigerant leakage, repair or
change the refrigeration cycle
Capillary tube blockage,
change the refrigeration cycle
Unit Check complete
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
NO
NO
NO
Check the electronical parts
NO