[B_Stew]

Hi,
Just to clarify, the original element that blew went a number of years ago and with a replacement element the oven continued to work normally since. Only in the last couple of months has the fan oven been problematic.

I’m not convinced the temperature variable resistor is faulty now. It does have resistance which increases when you heat it up.

Thinking back, the recent problem with the fan oven started with it heating up, but not keeping hot while cooking, this was possibly related to opening the door to check/add food. Eventually the fan oven stopped heating at all.

I’ve had the PCB out and there’s no obvious signs of damage unfortunatley

[B_Stew]

Looks like i may have found the fault with this. There are three thermostats, two which are screwed to the back of the oven (type 261/p) which seem to test ok, but also a stat which goes through the top of the oven near the element which seems to be sold as a temperatrue sensor:
https://www.gorenje-spares.co.uk/cooker-oven/bo8776ax-25098901/sensor-temperature/product.pl?pid=3544612&path=498880&refine=thermostat&model_ref=2545753

This has no resistance or continuity when i test it. I dont understand why the overn modes work and this only affects the fan oven….

So i need this and a fan so I’m looking at around £70 worth of parts.

[B_Stew]

There’s no knobs, this model has a touch screen on the front which has a ribbon cable that run to a PCB labelled Diehl Controls 729772.

The feed for the elements runs through a couple of components that are attached to the rear of the oven, i assume one of them is a thermostat. This seems to operate the other elements normally, so the grill and top/bottom element modes do seem to heat the oven to the correct temp.

I wonder if it’s worth removing the control board and re-flowing the joints, there’s no obvious burnt components but i guess it could be a dry joint?

[B_Stew]

Thanks, that helped!

After setting the multimeter to the correct setting I do get 26 ohms across the fan oven element, and ~30 across some of the others.

The fan is definitly faulty, it will spin occasionaly, but not freely and not every time i switch it to on. Even on the defrost mode which uses no elements, it will only occasionally spin and when it does its slow.

Is it possible that it’s not detecting the fan spinning and therefore not sending power to the element? If i set it to fan oven i don’t seem to get any heat at the element, it’s cold to the touch

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