Panasonic · Microwave error code
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Get lifetime accessOnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.
Guide · MicrowaveNo heat means the high-voltage circuit is not producing microwaves: HV fuse, HV diode, HV capacitor, magnetron, HV transformer, a door switch, or (on inverter models) the inverter board. Every internal test is high-voltage work for trained techs only, with the cord unplugged and the HV capacitor discharged and verified.
Component test · MicrowaveThe HV diode works with the HV capacitor to double the transformer voltage for the magnetron. It is made of many junctions in series, so an ordinary meter only shows it is not shorted. A shorted diode is a classic cause of no heat with a loud hum.
Guide · MicrowaveA loud hum is usually the HV transformer under heavy load from a shorted HV diode, a shorted magnetron or a failing transformer. All checks are in the high-voltage section.
Panasonic · Microwave
E01
Fault - stop using
Panasonic · Microwave
H96
High-voltage protection fault
Panasonic · Microwave
H97
Microwave generation fault
Panasonic · Microwave
H98
No microwave output detected (inverter/magnetron)
Panasonic · Microwave
H99
Magnetron / inverter circuit failure
Panasonic · Microwave
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