Daikin Altherma EKHBH Series Service Manual page 106

Error Codes: Outdoor Units
1
Troubleshooting
3 3
4
5
Caution
3–20
Four way valve coil
disconnected (loose)?
NO
Harness out of connector?
NO
Check the continuity of the four way
valve coil and harness.
Disconnect the
harness from the connector.
Resistance between harnesses
about 3kΩ±0.5kΩ?
YES
Check No. 5
Check the four way valve
switching output.
Functioning
Any thermistor disconnected?
NO
Check No. 6
Check the thermistors.
Functioning
Check No. 11
Check the refrigerant line.
Functioning
See also:
"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
YES
NO
Malfunctioning
YES
Malfunctioning
Malfunctioning
∗Insufficient gas
∗Water mixed
∗Stop valve defective
ESIE06-03
Correct.
Reconnect.
Replace the four way valve coil.
Replace the outdoor unit PCB.
Reconnect in position.
Replace a defective thermistor.
Refer to the refrigerant line
check procedure.
Replace the four way valve
(defective or dust-clogged).
Part 3 – Troubleshooting