Expect to Face These 7 Common Boiler Problems – A Guide

6 Jan by Will Kruse

Expect to Face These 7 Common Boiler Problems – A Guide

If you have a boiler at home, you know that they can be temperamental. Just when you need them most, they can develop problems and cause all sorts of issues. But what are the most common boiler problems?

If you have a boiler at home, you know that they can be temperamental. There are a lot of different boiler problems that can occur, and some can be more serious than others. In this article, we’ll go over the seven most common boiler problems and what you can do to fix them.

  1. Leaking Water

One of the most common boiler problems is leaking water. If you notice water leaking from your boiler, it’s important to turn off the power and water supply to the boiler immediately. Once the water supply is shut off, you can try to identify the source of the leak and repair it. If you’re not sure how to do this, or if the leak is too large to repair, you should call a professional.

  1. Making Strange Noises

Another common boiler problem is strange noises coming from the boiler. These noises can be anything from a low rumble to a high-pitched squeal, and they can be caused by a variety of different things. If you notice your boiler making strange noises, you should have it checked out by a professional to see what the problem is.

  1. Not Firing Up

If your boiler isn’t firing up, it could be because the pilot light is out. If this is the case, you’ll need to relight the pilot light. If the pilot light won’t stay lit, there could be a problem with the gas supply to the boiler. In either case, you should call a professional to have the problem diagnosed and repaired.

  1. Not Heating Water

If your boiler is turned on but not heating water, there could be a problem with the heating elements. These elements can burn out over time, and they may need to be replaced. Another possibility is that there’s a problem with the thermostat. If the thermostat isn’t working properly, it may not be sending the signal to the boiler to turn on.

  1. Not Maintaining Water Pressure

If your boiler isn’t maintaining water pressure, it could be because there’s a leak in the system. A leak can cause the water pressure to drop, so you’ll need to find and repair the leak. Another possibility is that the expansion tank is full.

  1. Thermostat Not Working

One of the most common boiler problems is when the thermostat stops working. This can be a problem with the wiring, the batteries, or the thermostat itself. If you have a battery-operated thermostat, check the batteries first. If they are low, replace them and see if that fixes the problem. If the batteries are fine, then check the wiring to make sure everything is plugged in correctly. If the wiring looks good, then the problem may be with the thermostat itself, and you may need to replace it.

  1. Pressure Keeps Dropping

Another common boiler problem is when the pressure in your boiler keeps dropping. This can be a serious problem because it can cause your boiler to stop working altogether. There are a few different things that can cause this problem, such as a leak in the system or a problem with the expansion tank. If you think that your boiler pressure is dropping, you should contact a professional to come and take a look at it.


The most common boiler problems are usually caused by water or air leaks, corrosion, or scale buildup. These problems can often be fixed by a qualified technician. If you have any concerns about your boiler, it is always best to contact a professional for help.

L.J. Kruse Co. is an HVAC company in Berkeley that offers installation, maintenance, and repair services for all your heating and cooling systems. Get in touch with our expert technicians to learn more about our HVAC services!

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