HVACopediaNTI · Boiler
Lockout 229 Invalid Modulation output setting
What the control is telling you
The control rejected a configuration value: invalid Modulation output 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 227 Invalid DHW high limit set point setting
- Lockout 228 Invalid Stack limit set point setting
- Lockout 228 Invalid Stack limit set point setting
- Lockout 229 Invalid Modulation output setting
- Lockout 230 Invalid CH demand source setting
- Lockout 230 Invalid CH demand source setting
- Lockout 231 Invalid Delta T limit delay setting
- Lockout 231 Invalid Delta T limit delay 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.