HVACopediaNTI · Boiler
Alert 347 Abnormal Recycle: Hardware HFS IAS shorted
What the control is telling you
Abnormal Recycle: Hardware HFS IAS shorted.
Applies to: Trinity Tft60, Tft85, Tft110, Tft155, Tft175, Tft200, Tft250, Tft300, Tft399
Models that show this code
13 models in Trinity Tft
Other codes on the same units
- Alert 343 Abnormal Recycle: Hardware AC phase
- Alert 344 Abnormal Recycle: Hardware A2D mismatch
- Alert 345 Abnormal Recycle: Hardware VSNSR A2D
- Alert 346 Abnormal Recycle: Hardware 28V A2D
- Alert 348 Abnormal Recycle: Hardware PII INTLK shorted
- Alert 349 Abnormal Recycle: Hardware HFS LCI shorted
- Alert 35 Range PCB was configured
- Alert 35 Range PCB was configured
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 Tft60-399 Installation and Operation Instructions (rev. 2012-04-09), Sec. 15.0 Troubleshooting, Table 15-4. 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.