Panasonic NN-F623MF, Service Manual

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SYMPTOM CAUSE CORRECTIONS
13.Oven returns to plugged in
mode after 10 seconds
elapses on the Auto sensor
cooking mode.
1. Open or loose wiring of sensor
terminal from DPC
2. Open steam sensor
3. Defective DPC
9.2. Troubleshooting of inverter circuit (U) and magnetron [NEW H.V.
]
This oven is programmed with a self diagnostics failure code system which will help for
troubleshooting. H97, H98, and H99 are the provided failure codes to indicate magnetron and
inverter circuit problem areas. This section explains failure codes of H97, H98, and H99. First,
you must program the DPC by pressing [Clock] , [Timer] , [Start] , [Micro Power] . Program
unit for operation. H97, H98, H99 appears in display window a short time after start key is
pressed and there is no microwave oscillation.
Alternate way to troubleshoot oven with AC Ampere meter used
H97, H98, H99 appears in display window a short time after start key is pressed and no
microwave oscillation with AC Ampere meter used for troubleshooting
9.3. Digital programmer circuit troubleshooting guide
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