"electroninja" wrote in message
ups.com...
| Sam what's the downside of this idea--
|
| Substitute a dummy load for the magnetron (1500w low ohm external
| load-maybe a heating coil) and run unit to see if controller shutsdown
| the unit. Test could rule out overheating issue.

You could use a small electric heater/fan heater as a load for a test.

N