Daikin K-Series Service Manual page 116

SiBE061121.book Page 106 Monday, April 25, 2011 3:21 PM
Troubleshooting
In case of " H9 " " J3 " " J6 "
Troubleshooting
Check No.01
Refer to P.119
J3 error: the discharge
pipe temperature is
lower than the heat
exchanger temperature.
H9
J3
J6
106
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Turn on the power again.
Error displayed
again on remote
controller?
YES
Check No. 01
Check the thermistor resistance
value.
Normal?
YES
Cooling: Outdoor heat
exchanger
temperature
Heating: Indoor heat
exchanger
temperature
Check No. 01
Check the indoor heat exchanger
thermistor resistance value in the
heating operation.
Indoor heat
exchanger thermistor
functioning?
YES
: Outdoor temperature thermistor
: Discharge pipe thermistor
: Outdoor heat exchanger thermistor
NO
Reconnect the connectors
or thermistors.
NO
Replace the defective
one(s) of the following
thermistors.
∗ Outdoor temperature
∗ Discharge pipe thermistor
∗ Outdoor heat exchanger
NO
Replace the indoor heat
exchanger thermistor.
Replace the outdoor unit
PCB.
SiBE061121
thermistor
thermistor
(R14443)
Service Diagnosis