Industrial boilers provide hot water, steam or heat energy for a myriad of applications. Generally, with proper maintenance, industrial boilers are built to last. However, this doesn't mean your industrial boiler won't pick up a problem or two down the line. And it's imperative to know when this happens to plan for repairs early enough because a faulty industrial boiler will affect your processes and operational efficiencies. Blockages, leaks, insulation problems, pressure issues and heating issues are some of the problems you may encounter with your industrial boiler. Usually, the first step to staying ahead of your industrial boiler problems is to recognise when they arise. Therefore, here are some of the signs to watch out for and what they mean.

Unusual Sounds

Industrial boilers aren't completely quiet when operating. However, unusual noises should be a cause for alarm. Rumbling, banging, clanging, whistling and gurgling noises, among others, are some of the odd sounds to be keen to notice. Unusual noises can be a sign of several issues with your boiler. First, your water level could be low, or you may be dealing with air in your system. For such problems, you may hear gurgling or whistling sounds. Hissing sounds could indicate a leak in your system. In addition, your boiler could be overheating, forcing the release valve to release steam from the system. Overheating issues may also result in bubbling noises as the water inside the boiler boils. Generally, overheating problems tend to originate from a faulty thermostat.

The mineral build-up is another problem you are likely to face with your boiler. If you have a mineral build-up issue, you may hear banging and popping sounds from within your boiler, often known as kettling. In most cases, minerals or scales come from poor water quality. Also, malfunctions like loose components in your boiler could be the reason behind the banging sounds.


Leaks are other common indicators of a faulty industrial boiler. Unfortunately, detecting leaks in your boiler can be a challenge. That's because they may occur virtually anywhere within your boiler, and most of them tend to be hidden. That means you may not notice a leak until the damage is done. That's why it's imperative to invest in a water meter to help you detect leaks. Leaks also tend to affect the pressure. Therefore, it would be best to check your pressure gauge regularly because overly low pressure could signify a leak. Generally, corrosion and loose or damaged components like broken pressure release valves are possible reasons behind the leaks.

For more information on industrial boilers, contact a professional near you.