Self-Diagnosis Action Table; Abnormalities Detected When The Power Is Put On - Mitsubishi Electric Mr.Slim PUHZ-RP35VHA3 Service Manual

11-4. SELF-DIAGNOSIS ACTION TABLE

<Abnormalities detected when the power is put on>
Abnormal points and detection method
Error Code
None
63H connector open
Abnormal if 63H connector circuit is open
for 3 minutes continuously after power sup-
ply.
63H: High-pressure switch
F5
(5201)
1 No voltage is supplied to termi-
nal block(TB1) of outdoor unit.
a) Power supply breaker is
b) Contact failure or discon-
c) Open phase (L or N phase)
2 Electric power is not charged
to power supply terminal of
outdoor power circuit board.
a) Contact failure of power
b) Open phase on the outdoor
3 Electric power is not supplied
to outdoor controller circuit
board.
a) Disconnection of connector
4 Disconnection of reactor (DCL
—
or ACL)
5 Disconnection of outdoor noise
filter circuit board or parts fail-
ure in outdoor noise filter circuit
board
As for 100-140VHA2
100VHA3 type, it is especially
needed to check the resistance
RS1 on the noise filter circuit
board.
6 Defective outdoor power circuit
board
7 Defective outdoor controller
circuit board
1 Disconnection or contact failure
of 63H connector on outdoor
controller circuit board
2 Disconnection or contact failure
of 63H
3 63H is working due to defective
parts.
4 Defective outdoor controller
circuit board
(Note 1) Refer to indoor unit section for code P and code E.
Case
turned off.
nection of power supply ter-
minal
supply terminal
power circuit board
RP35-71V :Disconnection of
connector R or S
RP100V~140V:
Disconnection of connector
TABT or TABS
(CNDC)
and
1
47
Judgment and action
1 Check following items.
a) Power supply breaker
b) Connection of power supply terminal
block.(TB1)
c) Connection of power supply terminal
block.(TB1)
2 Check following items.
a) Connection of power supply terminal
block.(TB1)
b) Connection of terminal on outdoor power
circuit board.
RP35-71V :
Disconnection of connector R or S.
Refer to 11-9.
RP100V-140V :
Disconnection of connector TABT or TABS.
Refer to 11-9.
3 Check connection of the connector (CNDC)
on the outdoor controller circuit board.
Check connection of the connector, LD1 and
LD2 for RP35-71V and CNDC for RP100-
140, on the outdoor power circuit board (V) /
noise filter(Y).Refer to 11-9.
.
4 Check connection of reactor. (DCL or ACL)
RP35-71V: Check connection of "LO" and
"NO" on the outdoor noise filter circuit board.
Check connection of "R" and "S" on the
outdoor power circuit board.
RP100-140V: Check connection of "L1" and
"L2" on the active filter module.(ACTM)
Refer to 11-9.
5 a) Check connection of outdoor noise filter
circuit board.
b) Replace outdoor noise filter circuit board.
Refer to 11-9.
6 Replace outdoor power circuit board.
7 Replace controller board (When items above
are checked but the units can not be
repaired.)
1 Check connection of 63H connector on
outdoor controller circuit board.
Refer to 11-9.
2 Check the 63H side of connecting wire.
3 Check continuity by tester.
Replace the parts if the parts are defective.
4 Replace outdoor controller circuit board.