Troubleshooting SiENBE04-808_A
119 Service Diagnosis
Troubleshooting
Check No.05
Refer to P.147
Check No.06
Refer to P.148
Check No.11
Refer to P.150
NG
OK
NO
OK
NG
OK
YES
NG
Correct it.
Reconnect it.
YES
YES
YES
NO
NO
Replace the outdoor unit
PCB.
Replace the defective
thermistor.
Refer to the refrigerant line
check procedure.
Replace the four way valve
(defective or dust-clogged).
Reconnect in position.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
(R11710)
∗ Refrigerant shortage
∗ Water mixed
∗ Stop valve
Four way valve
coil disconnected (loose)?
Harness out of
connector?
Any thermistor
disconnected?
Check No. 06
Check the thermistors.
Check No. 11
Check the refrigerant line.
Check No.
05
Check the four way valve
switching output.
Check the continuity of the four
way valve coil and harness.
Replace the four way valve
coil.
NO
Resistance
between harnesses
about 1000 ~ 2000 Ω?
Disconnect the harness from the
connector.
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