Kitchenaid superba does not heat up (like others)

I have a Kitchen Aid Superba Mod KEMC307KSS05, SERIAL # XT0702305 – it does not heat up. The display works, but after setting it, it just says Lo and stays that way. I cannot hear a fan go on either. I did have a repairman look at it a while ago and he tried to replace the thermal fuse in the front and said that did not work and told me I would have to replace the whole control panel and it was going to cost about $550. I am trying to do a little research to see what else I can try first. It sounds like maybe try the thermal fuse in the back of the oven and a new blower? Any ideas here to help save me $100s would be greatly appreciated? Thank you. :slight_smile:

Here are your parts
http://www.appliancepartspros.com/partsearch/modelsearch.aspx?model=KEMC307KSS05

See the attachment for the tech sheet

Here is a manual which may help
http://appliancedigest.com/index.php?/files/file/247-whirlpool-kac-25-kitchenaid-built-in-microwave-oven-combination-service-manual/

You may have to join the site to download the manual but it is free and this is a very good site for manuals.

I would check for 240 volts first.
Next would be the oven’s thermal cut-off, see pages 3-20 and 3-40 in the manual.
Be sure to kill power to the unit when working on it.