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Hi, does anyone know:
1. Where is the temperature sensor located that measures fridge temperature? The wiring from PCB seems to disappear into insulation and that’s it. Its hard to believe that the equipment can be built with such crucial element not being able to be replaced?
2. Is the temperature sensors a 103AT type or 502At or different? I measured resistance and the results do not make too much sense. But as I cant find the sensor and dip in ice water, cant test it properly.
3. Does the fridge has some type of DX evaporator in back wall that cools the fridge? I can’t see any hole from the freezer fan that would push air to fridge compartment. Back of fridge can freeze a bit during normal operation and diagram seem to show some vertical, flat heat exchanger. https://www.hotpoint.co.uk/spare-parts/bom/hm312aiff-47540920000
As a background, I did a bit of fault finding and its not the defrost problem, and freezer maintains nice -18C. Freezer fan is also working. Other problem might be low gas but as the unit was not moved in 13 years, I read it would be unlikely. Or PCB but there is no obvious fault like capacitor burner, so will not buy new PCB as too expensive. After two days the fridge dropped to 7.4C so doing a bit of cooling but not enough. Thank you in advance.a lot of fridge sensors are foamed in during manufacture
some can be changed but it involves cutting a hole in the insulation at the rear and refoaming it
you can only do this if the manufaturer gives you position info for the sensor
as for boards, its a Hotpoint so beware of the fact that a lot of hotpoint board need programming after installation as these is no software on most of them
Dave
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