Daikin J Series Service Manual page 110

Troubleshooting
Troubleshooting
Check No.04
Refer to P.123
Check No.06
Refer to P.125
Check No.11
Refer to P.127
99
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Check No. 06
Check the thermistors.
OK
Check No. 04
Check the electronic
expansion valve.
OK
Check No. 11
Check the refrigerant
line.
OK
NG
• Discharge pipe thermistor
• Outdoor heat exchanger thermistor
• Outdoor temperature thermistor
NG
NG
• Refrigerant shortage
• Four way valve
• Water mixed
• Stop valve
SiBE041101
Replace the defective
thermistor.
Replace the electronic
expansion valve or the coil.
Refer to the refrigerant line
check procedure.
Replace the outdoor unit
PCB.
(R7141)
Service Diagnosis