Signs of a Broken Boiler

Boilers can be complicated appliances if you're not used to working with them like we are at Harwich & Dovercourt Boiler Services, so it can be hard to know when something has gone wrong with your boiler, or if anything has gone wrong at all!
Hence, we've made a list explaining the most common problems with boilers and how to identify if you have a broken boiler...

No heat / hot water coming from your radiators / taps

If you have no heat or hot water coming from your radiators / taps, this is an obvious sign that something isn't quite right with your boiler. This can be caused by a number of things, such as low pressure, issues with the thermostat or low water levels. You should be able to rely on your boiler to comfortably heat your home, so get this checked out ASAP.

Leaks and drips

Boilers can leak as a result of a number of reasons. However, one of the most common reasons for a leaky boiler is as a result of a faulty pump, which can be caused by several factors: Incorrect installation, the pump has become loose or the seal has blown seal due to incorrect pressure settings. Either way, it's important that you call out a gas engineer to take a look at your boiler. 

Your boiler is making kettling noises

If you can hear your boiler making the sound a kettle makes when it reaches boiling point, it's a potential sign that limescale has built up on the inside of your boiler and is restricting water from flowing through your system as it should do.  

Pilot light turns on

The pilot light is a blue flame that lights a larger burner. There are several reasons it could be blowing out, but you should not try and relight it yourself, as easy as it might seem. If the light blows out it could be to do with the gas supply, so you shouldn't be using an open flame close by. Leave all gas related jobs to our Gas Safe engineers.

Low boiler pressure

Use the pressure gauge to look at the pressure of your boiler. The needle shouldn't read below 1 and if it does, the pressure is too low and your central heating system won't function as it should. This is typically caused by a leak, so look for any visible ones before calling out a gas engineer.

Frozen condensate pipe

All condensing boilers have a condensate pipe that transports acidic water away from the boiler. Usually, these pipes run outside so there is a risk of freezing during winter months. If your pipe has frozen, you should defrost it using a hot water bottle/heating pack or pour warm water over it. This can be done yourself but, if you feel unsure or worried, we have no problems sorting this out for you. 

Boiler switches itself off

This can be caused by low water pressure, a problem with the thermostat or a lack of water flow, all of which will stop your system from functioning properly. If you can't identify what the problem is, or need extra help in sorting this issue, feel free to get in touch.

Need your boiler repaired in Harwich & Dovercourt?

If you have noticed any of these signs, please don't hesitate to get in touch with us. We offer our boiler repair service across Harwich and Dovercourt. To contact our team, give us a call on 01255 71400707544 395677, fill out the contact form on our website, or leave us an email at We hope to hear from you soon!