Daikin ZQG71~140L7V1B Service Manual page 160

Troubleshooting by Remote Controller
A
Are
the operation of
electronic expansion valve
normal?
YES
CHECK 2
High pressure is too
high.
NO
[In heating]
Are the
characteristics of the
indoor unit intermediate
thermistor normal?
YES
The indoor
unit fan is rotating during
operation.
YES
Are
the operation of
electronic expansion valve
normal?
YES
CHECK 2
High pressure is too
high.
NO
CHECK 2 Refer to P.196.
CHECK 8 Refer to P.201.
148
NO
YES
NO
NO
NO
YES
ESIE12-06
E9
Troubleshooting " "
CHECK 8
Replace the outdoor unit PCB
(A2P)
If error is displayed again,
replace the inverter PCB (A1P).
Replace the indoor unit
intermediate heat exchanger
thermistor.
Remove the foreign matter.
Replace the fan motor.
E9
Troubleshooting " "
CHECK 8
Replace the outdoor unit PCB
(A2P)
If error is displayed again,
replace the inverter PCB (A1P).
Service Diagnosis