Toshiba RAV-GM561ATP-NZ Service Manual page 70

Check Outdoor
code LED display
[P20]
(Item without special mention Indicates part of outdoor unit.)
[High pressure protective operation]
Is service valve fully opened?
YES
Reset the power supply
and then make a test run
matching to the season.
Heating season
Heating operation
Check overcharge of refrigerant, clogging of cycle,
broken pipe, abnormal overload, etc.
Defect → Correct defective position.
Does indoor fan
correctly operate?
YES
Is there any element blocks
heat exchanger of indoor unit?
exchanger
rt circuit
NO
- 70 -
Check and troubleshooting
NO
Cooling season
Cooling operation
Is resistance value of outdoor
TL sensor correct?
YES
Is there any defect such
as loosen nut in outdoor fan?
NO
Defect → Replace, retightening
Does the outdoor fan
perform abnormal operation?
NO
Is there any element which
blocks heat exchanger
of outdoor unit?
exchanger
rt circuit
NO
Eliminate interfering element.
NO
Are indoor fan motor
and connector correct?
YES
Are resistance values
of indoor TC and TCJ
sensors correct?
YES
YES
Eliminate interfering element.
Check overcharge of refrigerant, clogging of cycle,
broken pipe, abnormal overload, etc.
Defect → Correct defective position.
FILE NO. SVM-18043
Open service valve fully.
NO
Replace sensor.
YES
Check outdoor fan.
YES
Check the same items as
[P22] error.
YES
NO
Correct the connection.
NO
Replace
sensor.
Check indoor P.C. board.
Defect → Replace