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TROUBLESHOOTING
!
[
] [
] Suction Gas Pressure Sensor Abnormality
Malfunction of pressure sensor
Is connector CN29Ps on the
printed circuit board for relay
(PCB
D
) correctly connected?
Connect correctly
Is DC5V between
connector CN29Ps PIN1 and
PIN3 on the printed circuit
board for relay (PCB
D
)?
Replace the
printed circuit board
for relay (PCB
D
)
Is less than DC 0.1V or
more than DC 4.9V between
connector CN29Ps PIN2 and
PIN3 on the printed circuit
board for relay (PCB
D
) when
suction gas pressure
sensor is connected?
Replace the printed
circuit board for
relay (PCB
D
)
Is suction gas
pressure sensor
connecting pipe clogging?
Remove clogging
in the pipe.
Suction gas Pressure
Sensor Abnormality
!
[
] Error comunication between Ctrl. PCB
This alarm code is indicated when the transmission signal between Ctrol PCB is missing more than 30 seconds.
Is connector CN12 on the
Printed Circuit Board for
CPU (PCBc) correctly
connected?
Plug correctly
and repair wiring
Check the printed
circuit board
for CPU (PCB
C
)
Yes
Yes
Yes
Yes
No
No
No
No
No
Yes
