HVACopediaNTI · Boiler
Alert 151 Minimum water temperature parameter was greater than setpoint
What the control is telling you
Minimum water temperature parameter was greater than setpoint.
Applies to: Trinity Tft60, Tft85, Tft110, Tft154, Tft201, Tft285, Tft340, Tft399
Models that show this code
13 models in Trinity Tft
Other codes on the same units
- Alert 149 CH steam pressure was invalid
- Alert 149 CH steam pressure was invalid
- Alert 15 Safety group verification table was updated
- Alert 15 Safety group verification table was updated
- Alert 152 Minimum water temperature parameter was greater than time of day setpoint
- Alert 155 CH modulation rate source parameter was invalid
- Alert 157 DHW demand source was invalid
- Alert 157 DHW demand source was invalid
Save it for the next call
Star this code in the HVACopedia app and keep the whole library on your phone for jobs with no signal.
Source: NTI Trinity Tft399 Installation and Operation Manual (2018-09-07), Sec. 16.0 Troubleshooting, Table 16-4. Summarized in our own words; check the original manual for your model.
Homeowner looking at this code? See what it means for you and when to call a technician.
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.