What does it mean when the red indicator light flashes on my Tectro TSM8 DUO?
- AAriana LewisAug 14, 2025
If the red indicator light for the compressor on your Tectro Air Conditioner is flashing and the indoor unit fan isn't working, the unit has likely switched from heating to defrost mode. Wait up to 10 minutes for the light to turn off; the unit will then return to heating mode.










