I can program my APO and the fan works. However, none of the elements heat up. I’ve tried grill only, top and bottom, bottom only and back but it stays stone cold.
Given none of the heating elements work I am hoping it is just an internal fuse.
Can anyone advise me whether this could be the case and where I might find the fuse.
Thanks
Paul
This happened to me too. Anything powered by A/C wasn’t working. Anova refused to help.
I did manage to track the problem down to the main relay on the circuit board. Ordered the part, replaced it, and presto, for the cost of $10 I no longer need to buy an entire new oven.
Thankyou so much, I have ordered the part and will keep my fingers crossed.
When fitting, did it require any solderdering or is just like removing and putting in a new plug?
Regards
Paul
Yup, it required desoldering/soldering.
Desoldering was actually a little tricky since there are 8 pins. I tried some of the techniques in this video but wasn’t able to completely desolder it. I did get enough space between the relay and the board that I could snip the pins with a small pair of clippers, then remove the pins one-by-one.
Good luck!
Had the same issue, also isolated it to the relay. After replacing the relay my oven is back up and running.
Thanks Iamveen for the pointers 
Just a note mine is the 240V version but the PCB is practically the same.
How did you isolate the issue to the relay? (Trying to figure out if my oven not heating is also due to this)
I didn’t isolate it, I just followed the findings of others on this forum, replaced the relay and it is now up and working.
Everything on my oven worked but just did not heat up at all.
Hope this helps.