Daikin FTXS20G2V1B Service Manual page 133

Troubleshooting
Troubleshooting
Check No.04
Refer to P.146
Check No.06
Refer to P.148
Check No.11
Refer to P.150
121
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
SiENBE04-808_A
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