1
/10
TROUBLESHOOTING
!
[
] ~ [
] Activation of Compressor Internal Thermostat
This alarm code is indicated when the compressor internal thermostat is higher than 115ºC
Is alarm activated just after
running?
Is 220-240V the
voltage between
connector PCN204
PIN1 and connector
PCN 204 PIN3 on
the Printed Circuit
Board for Relay
(PCB
D
) ?
Check Printed
Circuit Board for
Relay (PCB
D
)
Wiring Check
(breaking of wire,
wrong wiring)
Is 220-240V the voltage
between connector PCN204 PIN1
and connector PCN 204 PIN3 on
the
Printed board for Relay
(PCB
D
)?
Wiring Check
!
[
] ~ [
] Phase Abnormality
This alarm code is indicated when the power source phase failure or reverse phase occur.
Is power source phase
failure or reverse phase?
Power Supply,
Wiring Check
Is printed circuit board for relay
(PCB
D
) connector R.S.T correctly
connected?
Connection repair
Is the power source of
connector R.S.T part phase
failure or reverse phase?
Repair to correct
phase
Check printed
circuit board for relay
(PCB
D
)
Yes
Yes
No
No (Activate
after a while)
Yes
No (Printed Circuit
Board is normal)
Excessive or short power source
voltage
Interphase of power source voltage is
imbalanced.
Compressor motor is locked
Insulation of compressor motor is
lowered
Yes (Phase Failure,
Reverse Phase)
No
No
Yes
No (Correct Phase)
Yes
