How To Determine If A Boiler Needs Repairs

Posted on: 21 June 2023

A boiler system is one of the best ways to supply steady heat to a building. However, the system will need repairs at some point. Effecting boiler repair work promptly can preserve your investment in the system, but how can you tell when it's time for repairs?

Little or No Heat 

This is a strong sign that something is wrong. The challenge, though, is figuring out what could be wrong. One of several components may have failed. Also, the lines could be clogged. A technician will need to work through the full diagnostic process to determine where the problem is in the system.

Once a professional has performed the repairs, they'll also have to check the lines to make sure that the water level is right and that the system will function properly. They may also need to add an anti-foaming agent to prevent bubbles from developing in the lines.

Carbon Monoxide Detections

Any detection of carbon monoxide in a building is bad. Turn down the thermostat and call a professional as soon as possible. There is likely a malfunction in the gas system that feeds the boiler. Only a qualified person should fix this part of the system.

The Pilot Light Goes Out

People often tolerate this issue for too long because they can usually relight the pilot themselves. However, a failing pilot light could be tied to a safety system's failure. The thermal couple could fail, and that might cause the pilot to quit because the system thinks it isn't lit so it triggers a shutdown. Also, there might be insufficient gas pressure for safe operation. In either case, have a boiler repair company send someone to check the problem.

Water Leaks

A boiler system operates under pressure. Consequently, you should take any leaks seriously. Even if there's a small drip, it could be due to excess pressure in the system. Corrosion can also encourage leaks, but this still lets out pressure. There is a risk that the pressure will blow lines or fittings, potentially shooting steam into the living area. Ask a technician to inspect the boiler if you see any water leaks.


Several problems can cause noise. Trapped air can cause the system to get clanky. A faulty pump could generate noise as it tries to operate. Bubbles in the line could gurgle, too. Escaping steam can also produce hissing sounds. All can lead to system failures so have a professional track down the noise source right away.