Discharge Pipe Temperature Abnormality
Error Code F3
Method of Error
Detection |
Detect according to temperature detected with the discharge pipe or compressor surface temperature thermistor. |
Error Decision
Conditions |
When discharge pipe temperature becomes abnormally high (i.e., 135°C (275°F) or more)
When discharge pipe temperature sharply rises (remains at 120°C (248°F) or more for a period of consecutive 10 minutes)
When compressor surface temperature becomes abnormally high (i.e., 120°C (248°F) or more)
When compressor surface temperature sharply rises (remains at 110°C (230°F) or more for a period of consecutive 10 minutes) |
Supposed
Causes |
Abnormal discharge pipe temperature
Defective discharge pipe thermistor
Abnormal compressor surface temperature
Defective compressor surface temperature thermistor
Defective outdoor unit control PCB |
Replace the control PCB (A1P).
Note: ∗1. Error code and thermistor
Error
Code |
Applicable Thermistor |
REYQ72TYDN REYQ72TTJU |
REYQ96-120TYDN REYQ96-120TTJU |
REYQ144-168TYDN REYQ144-168TTJU |
Electric symbol |
Connector |
Electric symbol |
Connector |
Electric symbol |
Connector |
J3 |
Discharge pipe (M1C) thermistor |
R2T |
X19A
(Group connector) |
R21T |
X19A
(Group connector) |
R21T |
X19A
(Group connector) |
Discharge pipe (M2C) thermistor |
— |
— |
R22T |
R22T |
Compressor surface temperature thermistor |
R14T |
X19A
(Group connector) |
— |
— |
R14T |
