You should keep a regular check on your Vaillant boiler to prevent issues later on. One thing to look at is the boiler pressure gauge. In the green zone or around 1.3 – 1.5 bar is good. Sometimes the pressure can get too high, and keep rising to 3 bar. Although not catastrophic, it can … Read more
In a pressurised system, steady pressure is maintained to work properly. Even when your heating system is working correctly, your Vaillant boiler will lose some of its pressure over time and you may need to top it up twice a year. Boilers can often lose pressure for other reasons and this causes poor performance in providing heating … Read more
The house heating not coming on is usually a more common problem in climates like the UK where the average temperatures are not very high. But a Vaillant boiler that won’t turn off leaving you sweating in the summer heat can be an issue too, not only affecting comfort but wasted energy and increased fuel bills. … Read more
A Vaillant boiler that keeps turning off when the set temperature is reached is normal. But in some cases, a boiler switching itself off and on frequently indicates a problem. And there are a few reasons for that. Most of these will need to be looked at by a professional. Here, we look at what … Read more
If you find your Vaillant boiler isn’t firing up, there could be any number of causes but fortunately, there are many checks you can do and fix yourself first, before needing an engineer. However, if you don’t understand any of them it’s better to call a professional for safety reasons. Vaillant Boiler not firing up … Read more
There are a number of reasons why your hot water does not get hot enough or there is no hot water at all. And it depends on the type of heating system you have. Vaillant combi boilers are known to be reliable but sometimes things can go wrong. Here, we look at some of the main … Read more
If you’re experiencing problems with your Vaillant combi boiler and the hot water is going cold or lukewarm, before getting hot again, you are not alone. This is a common issue with Vaillant boilers with the main issue being a blockage in the hot water heat exchanger. But there can be a variety of other … Read more
