Check
code
Outdoor
LED display
Check and troubleshooting
(Item without special mention Indicates part of outdoor unit.)
[P04]
[High pressure SW system error]
Connection of connectors,
outdoor P.C. board,
Fan motor, Wiring.
Is circuit wiring correct?
Is there fan breakage
or coming-off?
Is service valve fully opened?
Does outdoor fan correctly operate?
Does high pressure switch
operate?
Are parts of
high pressure switch correct?
Reset the power supply and
then make a test run.
Is there any element
which blocks heat exchanger
of the outdoor unit?
Clogging of heat exchanger
Short circuit
Parts check
Defective
→
Replace
Elimination of
blocking element
Check outdoor PC board
Defective
→
Replace
Wiring check,
Correct.
Open service valve fully.
Repair defective position.
Overcharge of refrigerant/
Clogging/Pipe breakage/
Abnormal overload
YES
NO
YES
YES
YES
YES
NO
NO
YES
NO
NO
NO
YES
NO
FILE NO.SVM-18044
-1
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