Reliable Heating and Cooling Solutions – Quality Service, Fair Prices, Guaranteed Satisfaction!

NTI Boiler: Check the burner

Updated · by Aurora Star Tech Inc.

Check the burner on a NTI boiler: Burner check on the TRX150. Combustion assembly is out of the heat exchanger, so look it over while you can. Gaskets do not get reused.

Homeowner with a boiler problem? Call (647) 657-2977 or book a service call — licensed technicians across Vaughan and the GTA.

Applies to: TRX150

Common causes of check the burner

  • Burner surface damaged or cracked from age or overheating
  • Old burner gasket compressed and leaking combustion gas
  • Ceramic fiber crumbled or disturbed during removal

How to fix check the burner: step by step

  1. Power off, gas off, then remove the four screws holding the two electrodes to the burner plate and pull the electrodes.
  2. Remove the ceramic fiber.
  3. Remove the four screws and pull the burner out.
  4. Inspect the burner and replace it if damaged.
  5. When replacing the burner, always fit a new burner gasket.
  6. Leak check and verify flame on restart.
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.

If the unit shows an error code, look it up: NTI Boiler codes

Source: NTI TRX150 manual, p. 97. 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