All functions seem to work fine. But, does not heat the food.
Answer Hello Hans. You will need to check the magnetron and the diode in the unit. If one is bad, it can cause the unit not to heat. Also, the H.V. Transformer can cause the issue, but I would start with the magnetron and diode. The magnetron should read less than 1 ohm and look for broken magnets. The diode only reads in 1 direction. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html