Mitsubishi Electric PUHZ-RP200YHA, Руководство по обслуживанию

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12-4. SELF-DIAGNOSIS ACTION TABLE
<Abnormalities detected when the power is put on>
(Note 1) Refer to indoor unit section for code P and code E.
Error Code Meaning of error code and detection method Case
Judgment and action
None —
1
No voltage is supplied to terminal
block(TB1) of outdoor unit.
a) Power supply breaker is
turned off.
b) Contact failure or discon-
nection of power supply
terminal
c) Open phase (L2 or N phase)
2
Electric power is not supplied to
outdoor controller circuit board.
a) Disconnection of connector
(CNDC)
3
Disconnection of outdoor noise
filter circuit board or parts failure
in outdoor noise filter circuit
board
4
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 connection of the connector (CNDC)
on the outdoor controller circuit board.
Check connection of the connector, (CNDC)
the outdoor noise filter circuit board.
Refer to 12-9.
3
a) Check connection of outdoor noise filter
circuit board.
b) Replace outdoor noise filter circuit board.
Refer to 12-9.
4
Replace controller board (When items above
are checked but the units cannot be repaired.)
F3
(5202)
63L connector open
Abnormal if 63L connector circuit is open
for 3 minutes continuously after power sup-
ply.
63L: Low-pressure switch
1
Disconnection or contact failure
of 63L connector on outdoor
controller circuit board
2
Disconnection or contact failure
of 63L
3
63L is working due to refriger-
ant leakage or defective parts.
4
Defective outdoor controller
circuit board
1
Check connection of 63L connector on
outdoor controller circuit board.
Refer to 12-9.
2
Check the 63L 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.
F9
(4119)
2 connector open
Abnormal if both 63H and 63L connector
circuits are open for 3 minutes continuous-
ly after power supply.
63H: High-pressure switch
63L: Low-pressure switch
1
Disconnection or contact failure
of connector (63H,63L) on
outdoor controller circuit board
2
Disconnection or contact failure
of 63H, 63L
3
63H and 63L are working due
to defective parts.
4
Defective outdoor controller
circuit board
1
Check connection of connector(63H,63L) on
outdoor controller circuit board.
Refer to 12-9.
2
Check the 63H and 63L side of connecting
wire.
3
Check continuity by tester.
Replace the parts if the parts are defective.
4
Replace outdoor controller circuit board.
F5
(5201)
63H connector open
Abnormal if 63H connector circuit is open
for 3 minutes continuously after power sup-
ply.
63H: High-pressure switch 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
1
Check connection of 63H connector on
outdoor controller circuit board.
Refer to 12-9.
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.
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