ErrorCodeDoctor
Panasonic · Microwave

Panasonic Microwave H39 error code

Difficulty: Hard · Cost: $80–$250 · Duration: Requires professional service

The H39 error means your Panasonic combination steam microwave detected a fault with the steam heater thermistor — the temperature sensor that monitors the steam heater to prevent overheating. When this sensor fails the steam function cannot operate safely. This requires inspection and repair by an authorised service centre.

Common causes

  • Steam heater thermistor has malfunctioned or failed
  • Wiring to the steam heater thermistor is loose or damaged

How to fix it

  1. 1

    Stop using the microwave and unplug it

  2. 2

    Contact a qualified technician to inspect and replace the steam heater thermistor

Related Panasonic Microwave error codes

1

Cooling

The cooling fan is running to cool down the internal components — not an error

easy
2

Child Lock / Key Symbol / LOCK

Child lock is active — the control panel is disabled

easy
3

D

Demo Mode is active — the microwave will not heat

easy
4

E01

An internal fault was detected — the microwave requires service

hard