Toshiba RAV-SM1104AT8P-E Service Manual page 54

Check Outdoor
code LED display
[P04]
Check and troubleshooting
(Item without special mention Indicates part of outdoor unit.)
[High pressure SW system error]
Does high pressure switch
operate?
YES
Are parts of
high pressure switch correct?
YES
Is service valve fully opened?
YES
Reset the power supply and
then make a test run.
Does outdoor fan correctly operate?
Y E S
Is there any element
which blocks heat exchanger
of the outdoor unit?
Clogging of heat exchanger
Short circuit
NO
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FILE NO. SVM-17005
NO
Is circuit wiring correct?
NO
Parts check
Defective → Replace
NO
Open service valve fully.
Check outdoor PC board
Defective → Replace
NO
Is there fan breakage
or coming-off?
NO
Repair defective position.
Connection of connectors,
outdoor P.C. board,
Fan motor, Wiring.
YES
blocking element
Overcharge of refrigerant/
Clogging/Pipe breakage/
Abnormal overload
NO
Wiring check,
Correct.
YES
YES
Elimination of