Common Problems with Residential Boilers & How to Fix Them

March 9, 2018

 

There can be one or two minor problems when your system is first started for the season. Unfortunately, you usually learn about these common problems when it's already cold outside, making the need to address the issue much more urgent.

 

Let's face the most common problems you might encounter first, before you take a look at a newer energy efficient boiler.

 

You'll need to know what type of boiler you have. Most produce steam or hot water using natural gas or heating oil, and all are either condensing or non-condensing. While these systems differ in their controls they both utilize a boiler.

 

Your first step will always be to determine if you have a hot water boiler or a steam boiler. If you don't see a circulator (pump on a hot water heating system) or if you have a clear glass tube on one side of your boiler then it's a steam boiler. Good to know if you have to contact a technician.

 

Here's a quick check list before calling in the cavalry:

 

1. Check Your Pilot Light

 

The problem could be as simple as a draft blowing the pilot out. Or it could be debris clogging the gas delivery nozzle. Checking the pilot light is a consideration if you have either a hot water or steam boiler.

 

2. Investigate Loss of Pressure  

 

This commonly occurs because of a water leak somewhere in the system. However, the cause could also be due to a faulty pressure relief valve. In order to determine the cause, it's best to contact a professional who will be able to pinpoint and repair the problem quicker than you can on your own.

 

In the case of the steam boiler, you can check the water level at the site glass. The site glass should be filled up 3/4 of the way.

 

3. Could You Have a Faulty Thermostat?

 

Thermostat issues are exactly as they sound. If yours is inaccurate, or is not operating properly then you must replace it. This is something that you can typically replace on your own.

 

4. Is There a Deep Rumbling Coming From the Boiler?

 

The noise you hear is called 'kettling'. Not the best sign for the health of your boiler. Probably at the top of the list of the most common problems with boilers is limescale buildup within the boiler's heat exchanger. Cleaning the system will take care of that problem, but probably best to call a professional to err on the side of caution.

 

Are you having issues with your boiler? If you need any helpful advice, then please use our contact form or give Avalonair a call on 914-207-7167

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