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Check code name
[P26]
Check code name
G-Tr short-circuit protection error
Cause of operation
1. Outdoor unit power error
2. IPDU error/Cable connection error
3. Compressor error
4. IPDU P.C. board error
Auxiliary code : 01: Compressor 1 side 02: Compressor 2 side
Is power voltage of outdoor unit normal?
Replace IPDU P.C. board.
Is compressor normal?
Is wire connector connection
on IPDU P.C. board normal?
Is smoothing condenser normal?
(1500µF, 350V)
Correct power line.
Replace compressor.
Correct connection
of wire connector.
Check capacity coming-out/
external appearance.
YES
YES
YES
YES
NO
NO
NO
NO
Check code name
[P29]
Check code name
Compressor position
detective circuit error
Cause of operation
1) Cable/connector connection error
2) Compressor error
3) IPDU P.C. board error
Auxiliary code : 01: Compressor 1 side 02: Compressor 2 side
Check code name
[P31]
Check code name
Other indoor error
(Group follower unit error)
Cause of operation
Other indoor unit in the group is abnormal.
When the header unit of the group detected [E03, L03, L07, L08 error], the follower unit of the group displays [P31]
error and stops. There are no check code display and alarm record of the main remote controller.
Is not grounded?
Is not winding opened?
Are connector connection
and wiring normal?
Is not winding shorted?
(Is winding resistance 0.1 to 0.3 ?)
Check IPDU P.C. board.
Failure
Replace
Compressor error
Replace
Compressor error
Replace
Compressor error
Replace
Check and correct circuit and cables
such as cabling to compressor, etc.
YES
YES
YES
YES
NO
NO
NO
NO