Fujitsu Error Code Outdoor LED3 5 flashes: 2-way valve sensor error, unit C (24 type) (outdoor board LED) (Heat Pump)
Fujitsu error code Outdoor LED3 5 flashes on a heat pump means: 2-way valve sensor error, unit C (24 type) (outdoor board LED). It is also called Fujitsu diagnostic code Outdoor LED3 5 flashes.
Homeowner? What Fujitsu code Outdoor LED3 5 flashes means for you
Check, then call Your heat pump is reporting: 2-way valve sensor error, unit C (24 type) (outdoor board LED). This is often caused by something simple. Try the safe checks below; if the code returns, book a service call before it turns into a no-heat or no-hot-water emergency.
Safe things you can check yourself
- Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
- Check both breakers and the outdoor disconnect box beside the outdoor unit; all should be ON.
- Look at the air filter. If it is grey and clogged, replace it; a blocked filter causes many shutdowns.
- In winter, keep snow and ice off and away from the outdoor unit. A short defrost cycle with steam is normal.
- Try one reset: turn the power off for 30 seconds, then back on. If the code comes back, stop resetting and call a technician.
Call (647) 657-2977Book a service call
Licensed technicians serving Vaughan, Toronto and the GTA.
What does Fujitsu error code Outdoor LED3 5 flashes mean?
Multi-zone 18/24 outdoor board: LED3 flashes 5 times while the other LEDs stay off. Same fault family as indoor code 76. The LEDs sit on the back side of the board and are seen through a hole.
Applies to: Fujitsu 18 type (2-zone) and 24 type (3-zone) multi outdoor units
Common causes of Fujitsu code Outdoor LED3 5 flashes
- Plug
- Thermistor
- PCB
Other Fujitsu Heat Pump codes
All Fujitsu Heat Pump error codes →
Fujitsu code Outdoor LED3 5 flashes: homeowner questions
What does Fujitsu code Outdoor LED3 5 flashes mean?
2-way valve sensor error, unit C (24 type) (outdoor board LED). Multi-zone 18/24 outdoor board: LED3 flashes 5 times while the other LEDs stay off. Same fault family as indoor code 76. The LEDs sit on the back side of the board and are seen through a hole.
Is it safe to keep using my heat pump with code Outdoor LED3 5 flashes?
It depends on the cause. This is often caused by something simple. Try the safe checks below; if the code returns, book a service call before it turns into a no-heat or no-hot-water emergency.
Can I reset Fujitsu code Outdoor LED3 5 flashes myself?
You can try one reset (power off for 30 seconds, then on). If Fujitsu code Outdoor LED3 5 flashes comes back, the cause is still there and a licensed technician should check it.
Who can fix Fujitsu code Outdoor LED3 5 flashes near me?
Aurora Star Tech Inc. repairs Fujitsu heat pumps in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.
Homeowner help: AC Running But Not Cooling: What to Check · Heat Pump Not Heating or Blowing Cold Air
Source: Fujitsu Outdoor unit 18-24 type (North American trilingual) installation P-N 9374747160.pdf - section 8.2 Outdoor unit LED. Written in our own words as a summary; always check the original manual.
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.