Neff double oven u1442, main oven thermostat light does not work even though oven heats up. Is there a fix?

sounds like you need to replace the thermostat unit.

install a new fan again and try again

If you are sure there is 220v going to unit, it most likely is element or click / control. If you have a ohms meter, you can test the element

If the thermostat light is lit, then it cannot be the temp control, as this what is causing the light to work, indicating that the power is there . I f I were you, I would ascertain that you are getting a feed to the element.
If you are, then new element is faulty, if no feed then you need to trace the wires back to thermostat and work from there.

it has to be the temperature control itself...thats the only other component, aside from the high-heat cut out switch which rarely goes bad.

It is more than likely that the oven element has failed.
You will it located at the rear of the oven compartment behind a removeable cover.
Hope this helps.

The power to the fan and thermostat is the fault. You will need to trace wiring from these elements to power source and I suspect that where the power cord meets the oven is where you'll find the cause.

Can only be either element or thermostat. I suggest you check element and connections

Hi.

Yes ,it is the element.

You need to remove the panel at the rear of the oven, this will give you access to the element.

Good luck

If the fan is running then it is unlikely to be the clock/timer. Yopu need to check if there is voltage to the element but you MUST be careful to avoid an electric shock. There is sometimes a thermal cut out in line with the supply from the thermostat and that would need to be checked. If all OK the thermostat is the likely offender