Toshiba RAV-GM901CTP Series Service Manual page 44

[E04 error]
Does outdoor operate?
YES
Check indoor P.C. board.
Defect → Replace
NO
Is group address setup of
remote controller correct?
Are wiring in indoor unit and
1, 2, 3 inter-unit cables correct?
Are wirings of terminal blocks
(1, 2, 3) wired to CN67 normal?
Does the voltage between 2 and 3
of terminal blocks (1, 2, 3) vary?
Check outdoor P.C. board.
Defect → Replace
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NO
YES
NO
YES
NO
YES
NO
YES
∗ As shown in the following figure,
carry out measurement within 20 seconds
after the power was turned on.
Black
3
White
2
1
Terminal block
Check CODE No. [14].
Correct wiring and
inter-unit cables.
Correct wiring of connector
and terminal blocks.
Check indoor P.C. board.
(MCC-1643)
Defect → Replace
S5277G