ErrorCodeDoctor
Panasonic · Air Conditioner

Panasonic Air Conditioner H79 error code

Difficulty: Hard · Cost: $80–$200 · Duration: 5m

The H79 error means your Panasonic air conditioner detected a write error in the wireless LAN module — the component that enables Wi-Fi connectivity for use with the Panasonic Comfort Cloud app. This affects smart control features but the unit may continue to cool or heat normally. A power reset sometimes clears a temporary write error. If it persists the wireless LAN module will need to be replaced by a technician.

Common causes

  • Wireless LAN module experienced a write error during operation
  • Power interruption during a firmware update corrupted the module
  • Wireless LAN module has malfunctioned or failed

How to fix it

  1. 1

    Turn off the unit at the circuit breaker and wait 5 minutes then turn it back on

  2. 2

    If H79 returns contact a qualified technician to inspect and replace the wireless LAN module

Related Panasonic Air Conditioner error codes

1

H00

No fault detected — the unit has no stored error history

easy
2

H11

Abnormal communication detected between the indoor and outdoor units

medium
3

H12

The indoor and outdoor unit capacities do not match

hard
4

H14

The indoor unit intake air temperature sensor has an abnormality

hard

H79 error — frequently asked questions

What does the H79 error mean on a Panasonic air conditioner?

A wireless LAN module write error was detected

What causes the H79 error?

The H79 error is usually caused by: Wireless LAN module experienced a write error during operation; Power interruption during a firmware update corrupted the module; Wireless LAN module has malfunctioned or failed.

Can I fix the H79 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 H79 error?

Fixing the H79 error on a Panasonic air conditioner typically costs $80–$200, depending on parts and whether you do it yourself or hire a technician.

Is it safe to keep using my air conditioner with the H79 error?

We'd recommend addressing the H79 error before continuing to use the air conditioner, since hard-rated issues often involve a real fault rather than a minor glitch.