COMFORT-AIRE B-SVH24SA-1 Service Manual page 39

Service Manual - SVH 09/12/18/24 Series
9.3.5 Open circuit or short circuit of temperature sensor diagnosis and solution (E5)
Error Code
Malfunction conditions
Possible causes
Troubleshooting:
Check the connection
between temperature
sensor and PCB. OK?
Yes
Measure the resistance
value of the sensor. OK?
Yes
Replace indoor or
outdoor main PCB.
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 connection
Replace the sensor
No
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