Self-Diagnosis Action Table - Mitsubishi Electric Mr.Slim PUHZ-RP35VHA2 Service Manual

10-4. SELF-DIAGNOSIS ACTION TABLE

<Abnormalities detected when the power is put on>
Error Code Meaning of error code and detection method
None
63H connector open
Abnormal if 63H connector circuit is open
for three minutes continuously after power
supply.
F5
63H: High-pressure switch
(5201)
1 No voltage is supplied to terminal
block(TB1) of outdoor unit.
a) Power supply breaker is put
off.
b) Contact failure or discon-
nection of power supply
terminal
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
supply terminal
b) Open phase on the outdoor
power circuit board
RP35-71V :Disconnection of
connector R or S
RP100V~140V
:Disconnection of connector
TABT or TABS
3 Electric power is not supplied to
outdoor controller circuit board.
—
a) Disconnection of connector
(CNDC)
4 Disconnection of reactor (DCL
or ACL)
5 Disconnection of outdoor noise
filter circuit board or parts failure
in outdoor 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
1 Check following items.
a) Power supply breaker
b) Connection of power supply terminal block.
c) Connection of power supply terminal block.
2 Check following items.
a) Connection of power supply terminal block.
b) Connection of terminal on outdoor power
RP35-71V :Disconnection of connector R or S.
RP100V-140V :Disconnection of connector
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 10-9.
.
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 10-9.
5 a) Check connection of outdoor noise filter
b) Replace outdoor noise filter circuit board.
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 10-9.
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.
36
Judgment and action
(TB1)
(TB1)
(TB1)
circuit board.
Refer to 10-9.
TABT or TABS. Refer to 10-9.
circuit board.
Refer to 10-9.