Combination microwave

[Annieg]

Hi All,

I have a combination microwave that has been working perfectly fine, all the lights are on, the oven part works fine but the microwave bit has stopped working, the plate still moves around and it all looks like it is working fine until you take out the food and it is still cold... any ideas please?

 

[Jackrae]

Door interlock switch faulty, or magnetron faulty, or transformer faulty, or timer faulty - not much else to go wrong really