Panasonic NN-S573MF Service Manual page 48

7.
Oven does not operate and return to plugged in
mode as soon as start pad is pressed.
8.
Loud buzzing noise can be heard.
9.
Turntable motor does not rotate.
10.
Oven stops operation during cooking.
11.
Oven returns to plugged in mode after 10 seconds
elapses on the Auto sensor cooking mode.
1. Defective DPC
1. Loose fan and fan motor
1. Open or loose wiring of turntable motor
2. Defective turntable motor
1. Open or loose wiring of primary and secondary
latch switch
2.Operation of thermal cutout
1.Open or loose wiring of sensor terminal from
DPC
2.Open steam sensor
3.Defective DPC
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Check tighten screws on escutcheon
base bracket, D.P.C. board.
Adjust door and latch switches.