Daikin Altherma EKHBH Series Service Manual page 118

Error Codes: Outdoor Units
1
Troubleshooting
3 3
4
5
Caution
3–32
Turn on the power again.
Error displayed
again on remote controller?
YES
Connector or
thermistor disconnected?
NO
Check No. 06
Check the thermistor resistance
value.
Normal?
YES
Check No. 06
Check the hydro-box heat
exchanger thermistor resistance
value in the heating mode.
hydro-box
heat exchanger thermistor
functioning?
YES
P4:
Radiation fin thermistor
J3:
Discharge pipe thermistor
J6:
Outdoor heat exchanger thermistor
H9:
Outdoor air thermistor
See also: "Check No.06" on page 3-53
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
NO
YES
NO
NO
ESIE06-03
Reconnect.
Reconnect.
Replace defective one(s) of the
following thermistors.
• Radiation fin thermistor
• Discharge pipe
temperature thermistor
• Outdoor unit heat
exchanger temperature
thermistor
• Outdoor air thermistor
Replace the following
thermistor.
• Hydro-box heat
exchanger thermistor
Replace the outdoor unit PCB.
(Replace the hydro-box PCB.)
Part 3 – Troubleshooting