Troubleshooting) Oven Stops Operation During Cooking - Panasonic NN-DF383B Service Manual

NN-DF383B
7.1.

(Troubleshooting) Oven stops operation during cooking

SYMPTOM
1. Oven stops in 3 seconds after
pressing [start] pad.
Oven stops in 23 seconds after
pressing [start] pad.
Oven stops in 1 minute after
pressing [start] pad.
2. No display and no operation at all.
Fuse is blown.
CAUSE
No input AC is supplied to H.V.Inverter (U)
CN702 terminals
H.V.Inverter (U) operates by the control signals
from DPC but magnetron is not oscillating
Oven thermistor circuit is not functioning
Most probably loose connection of connectors,
or door latch mechanism is not adjusted properly
26
CORRECTIONS
1. Latch Switch
2. Power relay RY1
3. Loose lead wire connector CN701, CN702
1. Magnetron
2. Loose lead wire connector CN703
1. Oven thermistor
2. Loose wiring
1. Align door, Door Latch Switches
2. Loose wiring connectors