Installations
Domestic air conditioner
3
5
10.3.9 Overheat Protection For Discharge Temperature
Outdoor display: LED1 flash 8 times
Method of The Discharge temperature control is checked with the temperature being detected
Malfunction by the Discharge pipe thermistor
Detection
Malfunction when the compressor discharge temperature is above 110
℃
Decision
Conditions
Supposed
■
Electronic expansion valve defective
Causes
■
Faulty thermistor
■
Faulty PCB
Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or
else parts damage may be occurred.
Electrify the machine again and turn it on with the remote controller,
then measure the temperature at the exhaust temperature sensor of
the compressor on the outdoor unit
The temperature exceeds
110
℃
shortly after the
machine starts up?
1) The cryogen may have been leaked during
installation, or there may be leakage in the piping
system.
2) There may be other causes to make the exhaust
temperature too high.
Malfunctions occur after running for some time even
though the measured temperature is below 110
℃
. Pull
out the exhaust sensor and measure its resistance at
standard
temperatures
according
to
the
resistance-temperature table
The results deviate
much?
The sensor is damaged. Replace the sensor
with a new one.
The outdoor mainboard is damaged and needs be
replaced
YES
NO
NO
YES
Summary of Contents for AS25S2SF1FA-CW
Page 43: ...Table of Contents Domestic air conditioner 40 11 Wiring diagrams 11 1 INDOOR UNIT ...
Page 44: ...Circuit diagrams Domestic air conditioner 41 11 2 Circuit Diagrams ...
Page 49: ...four 5 Removal Procedure 4 Domestic Air Conditioner 1 2 3 four Remove the casing ...
Page 53: ...Removal Procedure 8 Domestic Air Conditioner motor cover ...
Page 54: ...Removal Procedure 9 Domestic Air Conditioner ...
