What should my Vaillant water pressure be?

The exact recommended pressure level will vary depending on the boiler manufacturer, but generally, anywhere between 1.0 and 2.0 bar is ideal. The boiler pressure level will rise when heating a home or providing hot water. However, it should still stay below the upper-pressure limit of 3 bar.

How do I drain water from my boiler?

How to Drain Your Boiler

1. Step 1: Do a Quick Flush.
2. Step 2: Turn off Your System.
3. Step 3: Open the Drain Valve and Flush the Tank With Water.
4. Step 4: Refill Your Hot Water Heater.
5. Step 5: Relight the Water Heater and Check the Drain Valve.
6. Things to Remember.
7. Take Care of Your Boiler System.

How do you drain water from a combi boiler?

How to Drain a Combi Boiler

1. Turn Off Your Boiler.
2. Locate the Drainage Valve.
3. Connect a Hose to the Valve.
4. Open the Drainage Valve.
5. Open the Bleed Valves on the Upstairs Radiators.
6. Repeat for the Downstairs Radiators.
7. Tighten the Valves.

How do you fill a Vaillant Ecotec boiler?

Repressuring a boiler without a filling loop

1. Turn off the boiler.
2. Insert the filling key into the keyhole and unlock it.
3. Turn the valve next to the key until water flows through it.
4. Monitor the valve until it reaches the recommended level for your boiler model.
5. Close the valve and turn the boiler back on.

How do I top up my Vaillant Ecotec boiler?

How do I top up water pressure?

1. Leave the tap on until the pressure reaches between 1 to 1.5 bar or is above the “bottom” line as in the picture below.
2. Close the Right hand tap into the “closed” position (anticlockwise).
3. Rotate the right hand tap into the “closed” position (anticlockwise).

What happens if boiler water 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.

Is 3 bar boiler pressure too high?

High boiler pressure isn’t dangerous, even if it’s showing as three bar on the pressure gauge. In most cases, the boiler will turn itself off if the pressure goes about a certain level and a working PRV should successfully control the pressure, preventing it from getting too high.

How do I fix the water pressure on my boiler?

Top tip!

1. Switch off and allow your boiler to cool.
2. Double-check that both ends of the filling loop are securely attached.
3. Open both valves, to allow cold mains water into the system (you should hear it)
4. Wait for the pressure gauge to read 1.5 bar.
5. Close both valves, one after the other.

How do you increase your water pressure?

Look on the main supply pipe near your water meter for a conical valve that has a bolt sticking out of the cone. To raise pressure, turn the bolt clockwise after loosening its locknut. Keep an eye on the gauge to make sure the pressure is within bounds, then retighten the locknut.

Where is my drain-off valve?

Find the right radiator and drain-off valve Look at the bottom of the radiator, as most of the time the drain valve is located there. Grab a garden hose and clip it with the help of a clip to the outlet, so the water runs outside.

Does a combi boiler have a drain valve?

To drain your combi boiler, you’ll need to find the drainage valve. It can usually be found at the lowest point of the lowest radiator in the property. Once located, attach a hose and lead it either outside or into a sink.

Do you need to drain a combi boiler system?

On average, you should aim to drain and repressurise your combi boiler once a year. If you’re needing to drain and top-up the unit more than this, it’s likely that your central heating system has a leak.