How do I release the pressure on my Alpha boiler?
How to Resolve Low Pressure?
- Find the Hose. Next, check to see whether your boiler has an external filling loop.
- Open the Filling Valves.
- Close the Valves.
- Switch the Boiler Back On.
- Cool Things Down.
- Find the Key.
- Protect Your Floor.
- Bleed the Radiator.
What pressure should a boiler expansion vessel be?
1 bar
Expansion vessels, also known as expansion tanks, keep the pressure in a combi boiler stable while water heats and cools. They are typically located inside the boiler casing. The typical pressure a boiler system should be set to is 1 bar.
Why does my Alpha boiler keep losing pressure?
Low boiler pressure (E10) When the boiler pressure drops to around 0.6bar on the pressure gauge, your Alpha boiler will fail to operate. A sudden drop in pressure is a strong indication that there’s a link somewhere around the heating system. Radiators, various pumps and expansion vessels can all be prone to leaking.
What happens when boiler pressure is too high?
If the boiler pressure is too high, there’s an increased chance of leaks developing in the system. But if boiler pressure is too low, the system won’t work as well. So keeping the correct boiler pressure is important to make sure that your system heats your home efficiently.
Why is my Alpha boiler flashing A and B?
#3 – (A) Indicator Flashing Red If the (A) light is red, but the (B) light is showing nothing, the problem is with the overheat thermostat. The boiler will show fault code 2 or fault code 25 and then lockout.
How do you lower the pressure in an expansion vessel?
If it’s above 2 bars, you’ll need to reduce the pressure. Ensure the filling loop or relief valve is tightly closed. Bleed your radiators to release trapped air from the heating system. Check to see if the boiler pressure returns to its correct setting.
How do I increase boiler pressure after bleeding radiators?
Top tip!
- Switch off and allow your boiler to cool.
- Double-check that both ends of the filling loop are securely attached.
- Open both valves, to allow cold mains water into the system (you should hear it)
- Wait for the pressure gauge to read 1.5 bar.
- Close both valves, one after the other.