Mitsubishi Electric Mr.Slim PUZ-HA30NHA2, Руководство по обслуживанию

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10-4. SELF-DIAGNOSIS ACTION TABLE
<Abnormalities detected when the power is turned on> (Note 1) Refer to indoor unit section for code P and code E.
Error Code Abnormal point and detection method Case Judgment and action
None
—
1
No voltage is supplied to termi-
nal block(TB1) of outdoor unit.
a) Power supply breaker is
turned off.
b) Contact failure or disconnec-
tion of power supply terminal
c) Open phase (L1 or L
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
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)
5
Disconnection of outdoor noise
filter circuit board or parts fail-
ure in outdoor noise filter circuit
board
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
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
Disconnection of connector TABT or
TABS
Refer to 10-9.
3 Check connection of the connector (CNDC)
on the outdoor controller circuit board.
Check connection of the connector, CNDC,
on the outdoor power circuit board. Refer to
10-9.
4
Check connection of reactor. (DCL)
Check connection of “L1” and “L” on the
active filter module.(ACTM)
Refer to 10-9.
5
a) Check connection of outdoor noise filter
circuit board.
b) Replace outdoor noise filter circuit board.
Refer to 10-9.
6
Replace outdoor power circuit board.
7 Replace controller board (When items
above are checked but the units cannot be
repaired).
F
(0)
63L connector open
Abnormal if 6L connector circuit is open
for minutes continuously after power sup-
ply.
6L: Low-pressure switch
1
Disconnection or contact failure
of 6L connector on outdoor
controller circuit board
2
Disconnection or contact failure
of 6L
3
6L is working due to refriger-
ant leakage or defective parts.
4
Defective outdoor controller
circuit board
1
Check connection of 6L connector on
outdoor controller circuit board.
Refer to 10-9.
2
Check the 6L side of connecting wire.
3
Check refrigerant pressure.
Charge additional refrigerant.
Check continuity by tester.
Replace the parts if the parts are defective.
4
Replace outdoor controller circuit board.