How to Take an Amp Draw
If any component from the microwave circuit fails or the food is not cooking properly, the first thing
that should be done is take an amp draw on the CT wire. The target amp draw on both circuits for a
208V unit is between 14-15 amps, a unit supplied with 240V will be between 13-14 amps. Each
microwave circuit can be isolated by removing both primary wires to the HV transformer. Never
attempt to isolate by removing the secondary wires due to high voltage.
Please follow the instructions below to obtain an amp draw on both microwave circuits.
1) Remove both sides and top panels from the unit.
2) Locate the brown CT wire looping through the current sensor on the main control board.
3) While the oven is off, press and hold the number 6 and On/Off keys to enter the magnetron test.
4) Place your amp clamp on one side if the brown wire avoiding the black shrink.
5) Press the Play button on keypad to start the magnetron test. This function will engage both
microwave circuits and give a combined amp draw.
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