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17.4.24 F83 (Protection of Aluminium Electric Heater (Heatcharge) Temperature Over
Heating)
Troubleshooting
Diagnosis Procedures and Cause
Measures to be Taken
Yes
Yes
No
No
No
No
Check heater characteristics
(check heater resistance at 33Ω )
Check sensor conncetion
Check sensor characteristics
Check outdoor temperature sensor characteristics
Replace the heater
Replace the sensor
Replace the outdoor PCB
Re-connect the connector
Replace the outdoor sensor
Yes
Yes
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