⚠
warning Fujitsu
Error Code TIMER indicator lamp flashes
The TIMER Indicator Lamp (orange) on the indoor unit's panel is flashing.
? What Causes This
A fault occurred in timer settings or during power interruptions.
✓ How to Fix It
Reset and review timing controls, consult authorized services if operation remains incorrect after adjustments.
Source: page 17 of the official manual
From the manual
This error code appears in:
Fujitsu Inverter Halcyon