Check the overflow pipes and pans to be certain that they are not clogged.
*A boiler check valve is usually made by Watts and called a Watts 9D. This prevents the water that goes into the boiler backflowing and having the heating water from the boiler coming back into the domestic water and having you drink it or shower in it.* Cheers,QuiteSomething
The feed check valve of a boiler is on the line coming out of the boiler it is usually to prevent the water from going back in to the boiler its coming out of so it would build up excessive amounts of pressure which will cause the t&p valve to blow temperature and pressure
It is important that you do not use the boiler and turn the gas off. You must then ask a professionally qualified gas plumber or engineer to come and test and overhaul your boiler. If you do not do this your boiler could let Carbon Monoxide gas into your house and this will kill you. Don't mess with Gas!!!
Change 3 pin micro switch that sits on diaphram, it gets stuck which keeps pump running all the time, which causes boiler running on and off at intervals. This will cure your problem 100% micro switch cost £16, its easy to change ,
If there is no hot water coming from the taps and no pressure in a combi boiler, it could be due to several issues. A common reason is low water pressure, which may be caused by a leak in the system or a faulty pressure relief valve. Additionally, the boiler could be in lockout mode due to overheating or a fault, preventing it from heating water. Checking the pressure gauge and ensuring it’s within the recommended range, along with inspecting for leaks, can help diagnose the problem.
Closing the air vent valve when white steam is coming out of a boiler is essential to maintain proper pressure and ensure efficient operation. White steam indicates that water is vaporizing, and if air is allowed to escape, it can lead to pressure fluctuations and inefficient heating. By closing the valve, you help to create a sealed environment that promotes optimal steam production and prevents air from interfering with the heating process. Additionally, this practice helps to prevent potential safety hazards associated with uncontrolled steam release.
needs to be cleaned
Common signs of a boiler leak include water pooling around the unit, a drop in boiler pressure, unusual noises coming from the system, and visible corrosion or rust. Potential risks of a boiler leak include water damage to the surrounding area, reduced efficiency of the boiler, and the possibility of carbon monoxide leaks if the boiler is not functioning properly.
Sounds like you have the wrong switch turned off.
The answer depends on the thermostat setting as well as the kind of heating system that you have.
An electric water boiler is a small appliance used to boil water. This can then be used for hot drinks or in a recipe that requires boiling water. An electric boiler is also helpful if the water coming from the tap contains contaminants, because boiling the water will eliminate them.
If you have steam coming from your vents, it could indicate a problem with your heating system, such as a malfunctioning boiler or a leak in the ductwork. It's important to turn off the system and investigate further to prevent potential damage or hazards like water damage or mold growth. If you're unsure, it's best to contact a professional HVAC technician for a thorough inspection and repair.