Troubleshooting SiENBE04-507A
126 Service Diagnosis
Troubleshooting
Check No.5
Refer to P.145
Check No.6
Refer to P.146
Check No.11
Refer to P.148
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)
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Four way valve coil
disconnected (loose)?
Check No. 11
Check the refrigerant line.
Harness out of connector?
Disconnect the
harness from the connector.
Resistance between
harnesses about
3kΩ±0.5kΩ?
Check No. 5
Check the four way valve
switching output.
Any thermistor disconnected?
Check No. 6
Check the thermistors.
Check the continuity of the four
way valve coil and harness.
Caution
Malfunctioning
Malfunctioning
Malfunctioning
NO
YES
Insufficient gas
Water mixed
Stop valve defective
Functioning
Functioning
Functioning
NO
YES
YES
YES
NO
NO
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