Troubleshooting
SiENBE04-808_A
121
Service Diagnosis
Troubleshooting
Check No.04
Refer to P.146
Check No.06
Refer to P.148
Check No.11
Refer to P.150
(R7141)
Caution
NG
OK
OK
OK
NG
NG
• Discharge pipe thermistor
• Outdoor heat exchanger thermistor
• Outdoor temperature thermistor
• Refrigerant shortage
• Four way valve
• Water mixed
• Stop valve
Check No. 06
Check the thermistors.
Check No. 11
Check the refrigerant line.
Check No. 04
Check the electronic
expansion valve.
Replace the defective
thermistor.
Replace the electronic
expansion valve or the coil.
Refer to the refrigerant line
check procedure.
Replace the outdoor unit
PCB.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
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