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Hi all. Not been on for some a while for various reasons, which I won't bore you with!

Got a customer with a wine cooler, with only the name of 'Discover' on the front door. From the pics can anyone advise whether the temp sensors are likely to be PTC or NTC.
The display shows 'E2' after a few minutes, and shows 'E1' if sensors are disconnected from pcb.

Many thanks, in advance
Graham