Why is the water in my central heating header tank hot?
Over time, this coil can become perforated, meaning there’s hole in the coil which allows water for the central heating into the domestic hot water being stored in the cylinder. This rise in water levels can then lead to the feed and expansion tank overflowing.
How do I turn off the water to my header tank?
Quote from the video:
Quote from Youtube video: What you can do is you can put a piece of water across the top of the tank. And you can mend it a on the ball valve. I'm actually going to use a wedding stuff.
What is a hot water header tank?
The Header Tank is the smaller of the two water tanks usually found in the loft, the larger one being the cold water storage tank. The header tank is used to fill the heating system and accommodate the expansion of water during the heating cycle.
What is a maxi pod?
The MaxiPod® is our finest indirect cylinder to date. This hot water system delivers fresh drinkable cold and heated water straight to your taps. The Maxipod truly is a groundbreaking hot water system.
Why does my header tank keep overflowing?
The most common cause of an overflowing header tank is a fault with the float mechanism, which may not be rising to the correct level and therefore not stopping the supply of water to the tank. This causes it to overflow through the outlet pipe (causing that cascade of water!).
How much water should be in central heating header tank?
The elevated water level must be at least 25 mm / 1 inch below the overflow.
Why is my hot water tank constantly filling?
Sooriginal New Member. It could be a sticking microswitch on your motorised valve (or on one of the motorised valves if you’ve two) causing the central heating pump (and possibly the boiler) to run all the time, which will send hot, or warm, water around the heating coil in the cylinder.
Why is my water tank constantly filling?
If water is running continuously into the tank, the float valve could be stuck down. Lift it up to release it and check nothing is stopping it from moving freely. If it’s moving with no problems, check the plastic ball isn’t punctured and filled with water. Should this be the case, it will need to be replaced.
Why does my expansion tank keep filling up?
Some tanks fail when a leak develops in the diaphragm. This usually causes the tank to fill with fluid and become “water logged.” You can check for this by pressing in the stem of the Schrader valve. If a stream of liquid comes out the tank is toast.
What temperature should a cylinder Stat be set to?
60-65ºC
A domestic hot water cylinder thermostat should be set at 60-65ºC. This is high enough to kill off harmful bacteria such as Legionella. If you set the thermostat much higher than this the water that comes out of the taps will be too hot and there’ll be a risk of scalding.
Is a thermal store vented or unvented?
A thermal store is an open vented cylinder that provides mains pressure hot water but without the need for discharge pipework.
How does a thermal store work?
A thermal store differs from a conventional hot water cylinder in that the water does not come out of your taps directly from the thermal store. Instead, it is heated up by passing through a heat exchanger that transfers heat from the thermal store water to the mains or tap water.
Why is hot water coming out of my overflow pipe?
Hot water systems
Water expands when heated, pressure builds up in the tank and is released through the overflow pipe. So water dripping or running from the valve can be a sign of a normal, functioning system. However, not all leaking overflow pipes are occurring due to normal pressure build up.
What causes a hot water cylinder to overflow?
At first glance, any hot water cylinder overflow might be alarming when you first see it. But in most cases, it’s simply a case of normal thermal expansion and nothing to be concerned about. Your cylinder is just doing what it is designed to do. When water is heated it expands.
How do you fix a hot water heater overflow?
Turn off the gas to your water heater or flip the breaker if you are having the electric type. Then, close the cold water cut-off valve that goes into the heater. 2. Open the overflow at the bottom for about 60 seconds to drain the water out of the tank and relieve the pressure.
Why is my hot water tank pressure relief valve leaking?
Your water heater’s relief valve can start leaking for one of two reasons: either the valve was triggered to open because of excessive temperature or pressure, or the valve itself is faulty.
Is it normal for water to come out of pressure relief valve?
While it’s normal for some water to leak from the pressure relief valve, the unit itself should never leak water. This can happen when the valve doesn’t properly relieve pressure from the unit and, in response, the tank ruptures.
Why is the water coming out of the release valve?
When you see water coming out from the water heater release valve, there are two most likely causes. The relief valve is working the way it’s intended, and water drained to reduce the pressure inside the tank. There’s a problem with the valve, such as a faulty seal, and the water is unintentionally leaking.
