Toshiba RAV-SM563UT-E Service Manual page 87

[E04 error]
Does outdoor unit operate?
YES
Check indoor P.C. board (MCC-1402).
Defect Replace
Check outdoor P.C. board
Defect Replace
NO
Is setup of group address correct?
YES
Are 1, 2, 3 inter-unit cables normal?
YES
Are connections from connectors
of inter-terminal blocks (1, 2, 3)
of indoor/outdoor units normal?
YES
Does voltage between
2 and 3 of inter-terminal blocks (1, 2, 3)
of indoor unit vary?*
YES
Does case thermo. operate?
NO
MCC-5009
MCC-1531 and MCC-1438
NO
NO
NO
NO
As shown in the following figure, perform measurement
*
within 20 seconds after power ON.
Black
White
Inter-terminal block
YES
RAV-SM563AT-E
RAV-SM803AT-E
RAV-SM1103AT-E
RAV-SM1403AT-E
RAV-SP562AT-E
RAV-SP802AT-E
RAV-SP1102AT-E
RAV-SP1402AT-E
– 87 –
Revised : Mar. 2007
Check item code [14].
Correct inter-unit cable.
Correct connection of connector.
Check indoor P.C. board
(MCC-1402).
Defect Replace
S5277G
3
2
1
Check/Correct charged
refrigerant amount.