HVACopediaNTI · Boiler
Alert 373 Internal error: Lead Lag master PID D-scaler was invalid
What the control is telling you
Control board logged an internal error: Lead Lag master 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
Other codes on the same units
- Alert 37 Program Module application parameter revision differs from application processor
- Alert 370 Internal error: DHW PID D-scaler was invalid
- 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 38 Program Module safety parameter revision differs from safety processor
- Alert 38 Program Module safety parameter revision differs from safety processor
- Alert 39 PCB incompatible with product contained in Program Module
- Alert 39 PCB incompatible with product contained in Program Module
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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.
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