10.1. (Troubleshooting) Oven stops operation during cooking
SYMPTOM
CAUSE
CORRECTIONS
1.
Oven stops in 3 seconds
after
pressing [Start] button
No 120V AC is supplied to H.V.Inverter (U) CN702
terminals
1. Interlock Switch
2. Power relay RY1
3. Loose lead wire connector CN701, CN702
4. H.V. Inverter (U)
Oven stops in 23 seconds
after
pressing [Start] button
H.V.Inverter (U) operates by the control signals
from DPC but magnetron is not oscillating
1. Magnetron
2. Loose lead wire connector CN703
3. H.V. Inverter (U)
2. No display and no operation at all.
Fuse is blown.
Most probably loose connection of connectors, or
door latch mechanism is not adjusted properly
1. Allign door, Door Interlock Switches
2. Loose wiring connectors
21
NN-SD372S
Summary of Contents for NN-SD372
Page 2: ...2 NN SD372S ...
Page 3: ...3 NN SD372S ...
Page 5: ...1 FEATURE CHART 2 CONTROL PANEL 5 NN SD372S ...
Page 6: ...3 SCHEMATIC DIAGRAM 6 NN SD372S ...
Page 26: ...10 7 How to check the semiconductors using an OHM meter 26 NN SD372S ...
Page 27: ...11 EXPLODED VIEW AND PARTS LIST 11 1 EXPLODED VIEW 27 NN SD372S ...
Page 33: ...12 DIGITAL PROGRAMMER CIRCUIT 12 1 SCHEMATIC DIAGRAM 33 NN SD372S ...
Page 34: ...34 NN SD372S ...
