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NTI · Boiler troubleshooting

Inform the user after service

TRX150

What is going on

After a service call I always sit down with the owner for a few minutes. Most of the nuisance calls I got on boilers came from people who did not know the pressure needs watching or who started fiddling with settings. A short talk and the manual left beside the unit saves a lot of trips.

Likely causes

  • Owner unsure what was changed during the service
  • System pressure drifting low with nobody watching the gauge
  • Owner or handyman adjusting the combustion system

Check in this order

  1. Explain any changes, adjustments or replacements to the user.
  2. Confirm the user understands how the system works.
  3. Leave the instructions near the unit.
  4. Ask the user to check system water pressure regularly and restore it if needed.
  5. Ask the user to have the system serviced at regular intervals.
  6. Tell the user never to service the boiler or adjust the combustion system themselves.

Applies to: TRX150

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Source: NTI TRX150 manual, p. 100. Written in our own words; check the manual for your exact model.

For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.