Daikin FDMQ-R Series Service Manual

Troubleshooting for Outdoor Unit SiUS091601EA
173 Part 6 Service Diagnosis
Reference
Troubleshooting In case of H9, J3, J6
H9 : Outdoor temperature thermistor
J3 : Discharge pipe thermistor
J6 : Outdoor heat exchanger thermistor
Check No.01 Refer to P.181
(R20406)
Caution
NO
YES
YES
NO
NO
YES
Turn on the power again.
Normal?
Reconnect the connectors
or thermistors.
J3 error: the discharge
pipe temperature is
lower than the heat
exchanger temperature.
Replace the defective
thermistor(s) of the following
thermistors.
 Outdoor temperature
thermistor
 Discharge pipe thermistor
 Outdoor heat exchanger
thermistor
Cooling: Outdoor heat
exchanger
temperature
Heating: Indoor heat
exchanger
temperature
Replace the indoor heat
exchanger thermistor.
Replace the outdoor unit
PCB (main PCB).
Error displayed
again on remote
controller?
Indoor heat
exchanger thermistor
functioning?
Check No. 01
Check the thermistor resistance
value.
Check No. 01
Check the indoor heat exchanger
thermistor resistance value in the
heating operation.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.

Daikin FDMQ-R Series Specifications

General

Brand	Daikin
Model	FDMQ-R Series
Category	Air Conditioner
Language	English