9.1. (Troubleshooting) Oven stops operation during cooking
SYMPTOM CAUSE CORRECTIONS
1. Oven stops in 3 seconds after
pressing [Start] button.
No input AC is supplied to H.V.Inverter (U)
CN702 terminals
1. Latch Switch
2. Power relay RY1 and/or RY2, RY3
3. Loose lead wire connector CN701, CN702
4. H.V. Inverter (U)
Oven stops in 37 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)
Oven stops in 1 minute after
pressing [Start] button. (Oven
function)
Oven thermistor circuit is not functioning. 1. Oven thermistor
2. Loose wiring
Oven stops in 30 seconds after
pressing [Start] button. (Steam
function)
Steam heater thermistor circuit is not
functioning.
1. Steam heater thermistor
2. Loose wiring
3. bad conductibility between thermistor and steam
heater
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. Align door, Door Latch Switches
2. Loose wiring connectors
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NN-GS597M