Table of Contents
Advertisement
HSU24VHJ DB
Service Diagnosis
7.3.1Thermistor or Related Abnormality (indoor unit)
: Room temperature sensor failure
: Heat-exchange sensor failure
the temperatures detected by the thermistors are used to determine thermistor errors
when the thermistor input is more than 4.92V or less than 0.08V during compressor
operation.
The values vary slightly in some models
Faulty connector connection
Faulty thermistor
Faulty PCB
Be sure to turn off power switch before connect or disconnect connector,
or
else parts damage may be occurred.
Check the connector
i
NO
Correct the connection
Is it normal?
Yes
Thermistor resistance check
NO
Is it normal?
Replace the thermistor
Yes
Replace the indoor unit PCB
Remove the connector of the thermistor on the PCB, and measure the resistance of thermistor using
tester.The relationship between normal temperature and resistance is shown in the value of indoor
thermistor.
5
Domestic Air Conditioner
Hide quick links:
Advertisement
Table of Contents
