Panasonic · Air Conditioner

Panasonic Air Conditioner F94 error code

Difficulty: Hard · Cost: $100–$400 · Duration: Requires professional service

The F94 error means your Panasonic air conditioner's compressor discharge pressure protection has activated — the pressure of the hot refrigerant gas leaving the compressor has exceeded the safe limit. This protective shutdown prevents the compressor from being damaged by excessive pressure. Common causes include a dirty condenser coil, poor ventilation around the outdoor unit, or a refrigerant overcharge. A qualified technician will need to inspect and resolve the high pressure condition.

Common causes

Outdoor condenser coil is dirty reducing heat dissipation and causing high discharge pressure
Outdoor unit is in a poorly ventilated space trapping heat
Refrigerant is overcharged
Outdoor fan is not operating correctly reducing condenser cooling

How to fix it

1

Turn off the unit at the circuit breaker
2

Check that the outdoor unit has adequate clearance and ventilation
3

Contact a qualified technician to clean the condenser coil, check refrigerant charge, and inspect the outdoor fan