NTI Boiler: Test mode and test function buttons
Test mode and test function buttons on a NTI boiler: Test Mode is used for gas inlet pressure checks. The Test Function is used to set the burner at max or min power.
Applies to: TRX150 and related TRX models
How to fix test mode and test function buttons: step by step
- Hold RESET for 10 seconds to enable Test Mode. The display shows a test icon.
- Hold RESET for 10 seconds again to activate the Test Function. Max and min power are selected with the buttons shown in the combustion procedure.
- To exit, press RESET. The Test Function also times out after 30 minutes.
If the unit shows an error code, look it up: NTI Boiler codes
Models
TRX085TRX110CTRX150TRX199TRX199C
More button combinations tips for boiler
Source: NTI TRX150 manual, p. 78-79. 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.