Fridges and fans.

Our Domestic CR80 fridge had a cheap noisy computer fan. And the fan comes on every time the compressor Switched on, regardless of the air temperature.

1) Cut a 120mm hole behind the fridge and fitted a vent cover.
2) Bought a simple thermostat with the intention of running the fan only when the compressor was on and when the air was too hot. Once I had the fridge out, It was not at all clear whereto put it, or even how the radiator worked .

3) Replaced the fan with high quality salvaged fan. Not good. It rattled, sounded like a noisy computer and then packed up.
4) Bought a new quiet fan, PQ277 Gelid Silent 12 cm, Fitted it behind the fridge, because there was not quite enough space between the fins.
-... That seemed to work well. Not quite silent but hardly louder than the compressor itself.
5) then the fridge light failed . I tracked it down to a failed voltage regulator.
Salvaged fan and original small fan.

Original fan top right. Mains/12/24V corner ten (now removed)


Grail-diagram. The 78S10V regulator also failed.


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