NTI · Boiler

Alert 370 Internal error: DHW PID D-scaler was invalid

Low severity Trinity Tft

What the control is telling you

Control board logged an internal error: DHW PID D-scaler was invalid.

Applies to: Trinity Tft60, Tft85, Tft110, Tft155, Tft175, Tft200, Tft250, Tft300, Tft399

Models that show this code

13 models in Trinity Tft

Tft110Tft154Tft155Tft175Tft200Tft201Tft250Tft285Tft300Tft340Tft399Tft60Tft85

Other codes on the same units

  • Alert 368 Internal error: DHW PID P-scaler was invalid
  • Alert 369 Internal error: DHW PID I-scaler was invalid
  • Alert 37 Program Module application parameter revision differs from application processor
  • Alert 37 Program Module application parameter revision differs from application processor
  • Alert 371 Internal error: Lead Lag master PID P-scaler was invalid
  • Alert 372 Internal error: Lead Lag master PID I-scaler was invalid
  • Alert 373 Internal error: Lead Lag master PID D-scaler was invalid
  • Alert 38 Program Module safety parameter revision differs from safety processor

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.

Open the app

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.