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

Follow Us On:

Logo
Contact US!

NTI Boiler: Open the complete technical menu

Updated · by Aurora Star Tech Inc.

Open the complete technical menu on a NTI boiler: Hold OK and ESC together for 5 seconds to open the service entry screen (it shows 222). Use + to pick the service code 234, press OK, then scroll with + until MENU appears and press OK to enter the complete menu.

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

Applies to: TRX boiler control and display

How to fix open the complete technical menu: step by step

  1. Hold OK and ESC together for 5 seconds until the display shows 222.
  2. Press + to select 234, the service code.
  3. Press OK, then press + until the display shows MENU.
  4. Press OK to enter the complete menu.
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

Models

TRX085TRX110CTRX150TRX199TRX199C

More access & passwords tips for boiler

Source: NTI TRX150 manual, p. 72. 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.

© 2026 Aurora Star Tech Inc. All rights reserved. This page may not be copied, republished or used to train other systems without written permission.

Emergency Boiler Repair

647-657-2977