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54
Check item code [14].
Correct inter-unit cable.
Correct connection of connector.
Correct connection of connector.
Replace IPDU.
Replace IPDU.
Correct connection of connector.
Check/Correct charged
refrigerant amount.
For RAV-SM560AT-E,
main circuit on control
P.C. board
For RAV-SM560AT-E,
check case thermo.
Check indoor P.C. board
(MCC-1402 or MCC-1403).
Defect
Replace
Check CDB.
Defect
Replace
Does outdoor unit operate?
Is setup of group address correct?
Is case thermo (CN500) connected?
Does case thermo operate?
Are 1, 2, 3 inter-unit cables 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?*
Is DC280V applied between
terminals of electrolytic capacitor
of IPDU main circuit?
Check indoor P.C. board
(MCC-1402).
Defect
Replace
*
As shown in the following figure,
perform measurement within
20 seconds after power ON.
Is DC7V power supplied to CDB?
Are cablings between Pin 2 and Pin 5
of CN800 and between IPDU
and CDB normal?
Black
White
3
2
1
Inter-terminal block
S5277G
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
[E04 error]/[04 error]