Hi,

The above oven doesn't heat on microwave. Convection heating and all
control functions seem O.K.

Most notable symptom is that the primary transformer current is only 5
amps AC when the magnetron is to be energized. I would expect over
twice that much. It is modulated with a relay, whose contacts appear
fine and will click on and off properly at 50% power setting.

I discharged the High Voltage and did all the usual resistance
measurements on the magnetron, transformer and cap. I did remove the
diode and ran 10 volts in series with it and a 1.2K resistor. Got 3mA
forward and 0mA reverse current.

I have a high voltage probe on order to test the high voltage under
operating conditions.

Does anyone have a suggestions? The failure seems partial somehow and
I don't know how to proceede without replacing parts that may be
operating fine.

Thanks in Advance!

Regards,
Jim Shedden