Posted 11 May 2018 - 12:49 PM
Posted 11 May 2018 - 01:16 PM
It sounds like a defective thermal switch.
If it is you have two options:
1. Replace the switch with a direct replacement.
2. Wire the fan in to be manually controlled so that you can switch it on and off to suit conditions.
Posted 11 May 2018 - 03:46 PM
Have you measured the resistance across the sensor switch terminals?
Posted 11 May 2018 - 04:53 PM
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