Daikin Altherma EKHBH Series Service Manual page 100

Error Codes: Outdoor Units
1
Troubleshooting
3 3
4
5
Caution
3–14
Discharge pipe
thermistor disconnected?
NO
Check No. 06
Check the thermistors
Functioning
Check No. 04
Check the electronic expansion
valve.
Functioning
Check No. 05
Check the four way valve.
Functioning
Check No. 11
Check the refrigerant line.
Functioning
See also:
"Check No.04" on page 3-51
"Check No.05" on page 3-52
"Check No.06" on page 3-53
"Check No.11" on page 3-59
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
YES
Malfunctioning
∗ Discharge pipe thermistor
Malfunctioning
Malfunctioning
Malfunctioning
∗ Refrigerant shortage
∗ Water mixed
∗ Stop valve defective
ESIE06-03
Insert the thermistor in position.
Replace the discharge pipe
thermistor.
Replace the valve itself or the
coil.
Replace the four way valve coil
or the valve itself.
Replace the outdoor unit PCB.
Refer to the refrigerant line
check procedure.
Replace the outdoor unit PCB.
Part 3 – Troubleshooting