Toshiba RAV-SM1100AT-E, RAV-SM1400AT-E, RAV-SM1101BT-E, RAV-SM1401BT-E E04 error/04 error

[E04 error]/[04 error]

NO

Does outdoor unit operate?

YES

NO

Is setup of group address correct?

YES

Are 1, 2, 3 inter-unit cables normal?		NO
	YES
Are connections from connectors		NO
of inter-terminal blocks (1, 2, 3)
of indoor/outdoor units normal?
	YES

Check item code [14].

Correct inter-unit cable.

Correct connection of connector.

Does voltage between	NO	Check indoor P.C. board
2 and 3 of inter-terminal blocks (1, 2, 3)		(MCC-1402).
of indoor unit vary?*		Defect Replace

YES

*As shown in the following figure, perform measurement within 20 seconds after power ON.

S5277G

Black	3
White	2

1

Inter-terminal block

For RAV-SM560AT-E, main circuit on control P.C. board

Is DC280V applied between		NO
terminals of electrolytic capacitor
of IPDU main circuit?
For RAV-SM560AT-E,	YES
check case thermo.

Replace IPDU.

Check indoor P.C. board (MCC-1402 or MCC-1403). Defect Replace Check CDB.

Defect Replace

Is DC7V power supplied to CDB?

Are cablings between Pin 2 and Pin 5

of CN800 and between IPDU

and CDB normal?

YES

Is case thermo (CN500) connected?

YES

NO

Does case thermo operate?

YES

Check/Correct charged refrigerant amount.

NO

NO

Replace IPDU.

Correct connection of connector.

Correct connection of connector.

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