Open Circuit Or Short Circuit Of Temperature Sensor Diagnosis And Solution (E5) - COMFORT-AIRE A-DVC24SF-1 Service Manual

Service Manual - DVC 09/12/18/24 SF Series

8.2.5 Open circuit or short circuit of temperature sensor diagnosis and solution (E5)

Error Code
Malfunction conditions
Possible causes
Troubleshooting:
Check the connections
between temperature
sensor and main PCB.
Are the connections
good?
Yes
Check the resistance value
of the sensor, is it normal?
No
Replace the sensor
E4/E5/F1/F2/F3
If the sampling voltage is lower than 0.06V or higher than 4.94V,
the LED will display the failure.
Wiring error
●
Sensor faulty
●
PCB faulty
●
No Correct the connections.
Replace indoor or
Yes
outdoor main PCB.
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