Bosch hbn531e2b/03 oven suddenly cooking is erratic.

[Kev Arms]

On Sunday after cooking for an hour food came out only 1/2 cooked. Thermostat seemed to be working because it was switching on and off as door was closed.
I guessed the rear fan element was done, so took out the oven today and tested it and it was 36ohms and visibly looked fine.
I’ve tested the thermostat and its closed when on and open when off.
I’ve ordered an oven thermometer to test the temp inside the oven. If there is a difference between internal and knob I’m guessing its the thermostat?

We cooked yesterday’s dinner using the top and bottom elements, and it cooked but again took longer than expected.

Any advice?

[electrofix]

get the temperatures and report back
leave the thermometer in the oven so you can see it through the door. Expect it to take 10 mins or so to settle before taking a reading

Dave

[Author]

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