Choose your Fujitsu appliance
About Fujitsu
Fujitsu air conditioners and heat pumps come from Fujitsu General, a Japanese manufacturer. Many Fujitsu units report faults through a pattern of blinking indicator lamps, and newer remotes and controllers can show the code directly.
Fujitsu air conditioner error codes
- 11Indoor and outdoor units can't communicate
- 12Wired remote controller communication error
- 18External or Wi-Fi adapter communication error
- 32Indoor unit control board error
- 35MANUAL AUTO button stuck
- 41Room temperature sensor error
- 42Indoor coil temperature sensor error
- 51Indoor fan motor error
All 20 Fujitsu air conditioner codes
Before you start
- Find your model number. It's on the rating label, usually inside the door or lid, on the frame, or on the back or side panel.
- Try a reset. Unplug the appliance or switch off its breaker for 10 minutes. Many codes are one-off glitches.
- Stay safe. Never bypass safety switches or work on live wiring, gas or refrigerant lines. Each guide tells you when to call a technician.