ErrorCodeDoctor
Panasonic Microwave H30 error code
The H30 error means your Panasonic microwave detected a fault with the oven cavity thermistor — the temperature sensor that monitors the heat level inside the oven cavity. Without an accurate temperature reading the microwave cannot regulate cooking safely. This requires inspection and repair by an authorised service centre.
Common causes
- Oven cavity thermistor has malfunctioned or failed
- Wiring to the thermistor is loose or damaged
- Thermistor is giving an out-of-range reading
How to fix it
-
1
Stop using the microwave and unplug it
-
2
Contact a qualified technician to inspect and replace the oven thermistor
Related Panasonic Microwave error codes
Cooling
The cooling fan is running to cool down the internal components — not an error
Child Lock / Key Symbol / LOCK
Child lock is active — the control panel is disabled
D
Demo Mode is active — the microwave will not heat
E01
An internal fault was detected — the microwave requires service
H30 error — frequently asked questions
What does the H30 error mean on a Panasonic microwave?
The oven cavity thermistor detected a fault
What causes the H30 error?
The H30 error is usually caused by: Oven cavity thermistor has malfunctioned or failed; Wiring to the thermistor is loose or damaged; Thermistor is giving an out-of-range reading.
Can I fix the H30 error myself?
This is rated a hard fix — it often requires tools, parts, or experience, and may be safer left to a professional technician.
How much does it cost to fix the H30 error?
Fixing the H30 error on a Panasonic microwave typically costs $80–$250, depending on parts and whether you do it yourself or hire a technician.
Is it safe to keep using my microwave with the H30 error?
We'd recommend addressing the H30 error before continuing to use the microwave, since hard-rated issues often involve a real fault rather than a minor glitch.