Service manual

Troubleshooting Si06-305
86 Service Diagnosis
Troubleshooting
Check No.5
Refer to P.106
Check No.6
Refer to P.107
Check No.11
Refer to P.110
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).
(R3040)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Four way valve coil
disconnected (loose)?
YES
YES
NO
Functioning
NO
Check No. 11
Check the refrigerant line.
Malfunctioning
Insufficient gas
Water mixed
Stop valve defective
Harness out of connector?
NO
YES
Disconnect the
harness from
the connector.
Resistance between
harnesses about
3kΩ±0.5kΩ?
Malfunctioning
Functioning
Check No. 5
Check the four way valve
switching output.
YES
NO
Any thermistor disconnected?
Malfunctioning
Functioning
Check No. 6
Check the thermistors.
Check the continuity of the four
way valve coil and harness.