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NTI Error Code Alert 3: Configuration parameters were restored from factory defaults (Boiler)

Updated · by Aurora Star Tech Inc.

NTI error code Alert 3 on a boiler means: Configuration parameters were restored from factory defaults. It is also called NTI diagnostic code Alert 3.

Low severityBoilerAlso BoilerTrinity Tft

Homeowner? What NTI code Alert 3 means for you

Usually minor Your boiler is reporting: Configuration parameters were restored from factory defaults. This code is usually informational or minor. The safe checks below often clear it; call us if it keeps showing up.

Safe things you can check yourself

  • Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
  • Make sure the unit has power: its on/off switch (often looks like a light switch near the unit) is ON and the breaker in the electrical panel is not tripped.
  • Look at the pressure gauge on the boiler. If it reads much lower than usual or near zero, or water is leaking, call a technician.
  • Outside, make sure the intake and exhaust pipes or vent cap are not blocked by snow, ice, leaves or a nest.
  • Check that the boiler gas valve is open (handle in line with the pipe).
  • Try one reset: turn the power off for 30 seconds, then back on. If the code comes back, stop resetting and call a technician.

Call (647) 657-2977Book a service call

Licensed technicians serving Vaughan, Toronto and the GTA.

What does NTI error code Alert 3 mean?

Configuration parameters were restored from factory defaults.

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

Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

NTI models that use code Alert 3

Tft60Tft60Tft85Tft85Tft110Tft110Tft154Tft155Tft175Tft200Tft201Tft250Tft285Tft300Tft340Tft399Tft399

Other NTI Boiler codes

CodeMeaning
Alert 1Alert PCB was restored from factory defaults
Alert 1Alert PCB was restored from factory defaults
Alert 2Safety configuration parameters were restored from factory defaults
Alert 2Safety configuration parameters were restored from factory defaults
Alert 3Configuration parameters were restored from factory defaults
Alert 4Invalid Factory Invisibility PCB was detected
Alert 4Invalid Factory Invisibility PCB was detected
Alert 5Invalid Factory Range PCB was detected
Alert 5Invalid Factory Range PCB was detected
Alert 6Invalid range PCB record has been dropped
Alert 6Invalid range PCB record has been dropped
Alert 7EEPROM lockout history was initialized

All NTI Boiler error codes →

NTI code Alert 3: homeowner questions

What does NTI code Alert 3 mean?

Configuration parameters were restored from factory defaults. Configuration parameters were restored from factory defaults.

Is it safe to keep using my boiler with code Alert 3?

Usually yes. Code Alert 3 is normally minor, but if it keeps coming back have it checked.

Can I reset NTI code Alert 3 myself?

You can try one reset (power off for 30 seconds, then on). If NTI code Alert 3 comes back, the cause is still there and a licensed technician should check it.

Who can fix NTI code Alert 3 near me?

Aurora Star Tech Inc. repairs NTI boilers in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.

Homeowner help: Boiler Not Heating: What to Check

Troubleshooting guides

Source: NTI Tft60-399 Installation and Operation Instructions (rev. 2012-04-09), Sec. 15.0 Troubleshooting, Table 15-4. Written in our own words as a summary; always check the original manual.

General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.

Emergency Boiler Repair

647-657-2977