Panasonic CU-8ME1XPK - Outdoor Unit: Actuation of Safety Device

Troubleshooting PACD011001C2
168 Troubleshooting Urban Multi “MX1, ME1 Series” Using R-22
3.13 Outdoor Unit: Actuation of Safety Device
Remote Controller
Display
E0
E0E0
E0
Supposed Causes
„
Actuation of outdoor unit safety device
„
Defect of outdoor unit PC board
„
Instantaneous power failure
Troubleshooting
∗
1: Actuation of magnet switch OC
Defect of compressor
Power supply insufficient
Defect of magnet switch, etc.
∗
2: Actuation of fan motor safety thermostat
Defect of fan motor
Defect of capacitor, etc.
(VF040)
Connector
or terminal is
connected to X8A - X9A of
the outdoor unit PC board
(A1P) and
X1S - X2S.
Contacts
F2C (X1S - X2S) are open.
Connect the connector or terminal and
turn on again.
Actuation of magnet switch
OC for standard compressor. ∗1
Actuation of fan motor safety
thermostat. ∗2
YES
NO
NO
YES
Contact
Q1M (X8A) or Q2M (X9A)
is open.
NO
YES
Operation
is normal when turned on
again by remote
controller.
YES
NO
Replace outdoor unit PC board A1P.
There was an instantaneous power
failure or a past safety device actuated.
Re-check refrigerant system.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.