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[E04 error] <In case of Under Ceiling Type>
[E10 error]
Check CODE No. [14].
Correct inter-unit wire.
Correct connection of connector.
Check/Correct charged
refrigerant amount.
Check indoor P.C. board (MCC-1402).
Defect
→
Replace
Check outdoor P.C. board
Defect
→
Replace
Does outdoor unit operate?
Is setup of group address correct?
Does case thermo. operate?
Are 1, 2, 3 inter-unit wires normal?
Are connections from connectors
of inter-terminal blocks (1, 2, 3)
of indoor/outdoor units normal?
Does voltage between 2 and 3
of inter-terminal blocks (1, 2, 3)
of indoor unit vary?
∗
Check indoor P.C. board
(MCC-1402).
Defect
→
Replace
∗
As shown in the following figure, perform measurement
within 20 seconds after power ON.
Black
White
3
2
1
Inter-terminal block
S5277G
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
NO
YES
Is there no disorder of power supply?
Check indoor control P.C. board.
Defect
→
Replace
Check power supply voltage.
Correct lines.
Check and eliminate noise, etc.
YES
NO