NTI Boiler: Clearing the low water cutoff lockout after filling
Clearing the low water cutoff lockout after filling on a NTI boiler: First-time fill or after the LWCO test.
Applies to: Trinity Tft60, Tft85, Tft110, Tft155, Tft175, Tft200, Tft250, Tft300, Tft399
How to fix clearing the low water cutoff lockout after filling: step by step
- Fill the boiler so the amber LOW WATER light goes out
- Clear the lockout from the display board
- The burner should then fire
If the unit shows an error code, look it up: NTI Boiler codes
Models
Tft60Tft60Tft85Tft85Tft110Tft110Tft154Tft155Tft175Tft200Tft201Tft250Tft285Tft300Tft340Tft399Tft399
Source: NTI Tft60-399 Installation and Operation Instructions (rev. 2012-04-09), Sec. 10.0 Boiler and Heating System Piping. 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.