Problem with Neff Microwave

[keymoo]

Model: H5642W0GB

My microwave switches on when I press start and the light and turntable turn. After 15 seconds the light goes off, the turntable stops and the food has not been heated. The fan, however remains on. Do you know what's wrong with it and what part I need?

Thanks!

 

[PrenticeBoyofDerry]

does it go off after 15 sec because you have set it to that or regardless of the time setting?

 

[keymoo]

does it go off after 15 sec because you have set it to that or regardless of the time setting?

No, I have set it to 1 minute. Thanks.

 

[Leccy758]

Usually if it goes off between 10 and 20 seconds without any heating it is because there is a fault with the HV side of the microwave circuit.

Not parts that are recommended to touch as DIY as even switched off you could have up to 20000V on some parts.

Fault could be with
PCB/Power module
HV fuse
Magnetron
Poor or damaged wiring or connectors



Your model number does not look complete it should have 2 more digits after the GB either 01, 02, 04

 

[PrenticeBoyofDerry]

I would agree with Leccy758,
the problem could well be PCB faulty also Magnetron related.
Not really a DIY job, microwaves can hold high capacitive voltages, even when powered down. If they are then not earthed correctly, you could be in for nasty belt.