Table of Contents
Advertisement
7.3.6 Overheat Protection For Exhaust Temperature
Indoor display
outdoor display
Method of
the exhaust temperature control is checked with the temperature being detected
Malfunction
by the exhaust pipe thermistor
Detection
Malfunction
when the compressor discharge temperature is above 117
Decision
Conditions
Supposed
Causes
Troubleshooting
* Caution Be sure to turn off power switch before connect or disconnect connector,
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
after the machine
Measure the temperature at the exhaust temperature
sensor of the compressor on the outdoor unit
Malfunctions occur after running
for some time? even though the
asured temperature is below
117
.
HSU24VHJ DB
F4
LED1 flash 8 times
Electronic expansion valve defective
Faulty thermistor
Faulty PCB
else parts damage may be occurred.
shortly
NO
NO
1) The cryogen may have been leaked during
installation, or there may be leakage in the
YES
piping system.
2) There may be other causes to make the
exhaust temperature too high.
Exhaust temperature
YES
sensor is broken and
needs be replaced
58
Service Diagnosis
Domestic Air Conditioner
or
Advertisement
Table of Contents
