HVACopediaNTI · Boiler
Alert 198 Lead selection setting was invalid
What the control is telling you
Lead selection setting was invalid.
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 194 Lead Lag modulation sensor setting was invalid
- Alert 195 Lead Lag backup modulation sensor setting was invalid
- Alert 196 Lead Lag slave mode setting was invalid
- Alert 197 Lead Lag rate allocation setting was invalid
- Alert 2 Safety configuration parameters were restored from factory defaults
- Alert 2 Safety configuration parameters were restored from factory defaults
- Alert 20 Backdoor password could not be determined
- Alert 204 Lead Lag master was suspended due to fault
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.