HVACopediaNTI · Boiler
Lockout 228 Invalid Stack limit set point setting
What the control is telling you
The control rejected a configuration value: invalid Stack limit set point setting.
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
- Lockout 226 Invalid Outlet high limit set point setting
- Lockout 227 Invalid DHW high limit set point setting
- Lockout 227 Invalid DHW high limit set point setting
- Lockout 228 Invalid Stack limit set point setting
- Lockout 229 Invalid Modulation output setting
- Lockout 229 Invalid Modulation output setting
- Lockout 230 Invalid CH demand source setting
- Lockout 230 Invalid CH demand source setting
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 16-3. 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.