Why does the pressure keep dropping on my Worcester Bosch boiler?

If you are constantly losing pressure in the heating system you could try the following to establish the cause: Check that there is no water being discharged from the pressure relief valve (sometimes referred to as an overflow). This pipe usually goes from the boiler through to an outside wall and terminates outside.

Why is my boiler losing pressure every day?

Modern boilers require constant water pressure in order to function properly. There are two main problems that typically cause a loss of pressure – water escaping somewhere in the system or a failure of the expansion valve and resulting damage to the pressure relief valve.

What pressure should my Worcester boiler be at?

To work efficiently the Worcester combi boiler needs to operate on a standard pressure, between 1/ 2 bar, 1.5 bar is also a good pressure level. So, the pressure of the combi boiler needs to be topped up with cold water through the mains at some point in their lifetime.

How do you reset the pressure on a Worcester Greenstar boiler?

External Filling Loop

1. Attach the hose to each side of the valve and open the mains cold tap.
2. Open the second tap which allows water in to the heating system.
3. Watch the pressure rise and stop once the bar reaches just about one and turn off both taps.

Is it normal for boiler pressure to fluctuate?

Don’t get straight on the phone to your engineer if you see your pressure changing temporarily as this is completely normal. Combi boiler pressure increases when the heating is on as your boiler uses fuel (gas, oil etc) to heat the water – this increase in pressure is natural.

Does boiler pressure go up when heating is on?

When you turn the heating on the water in the pipes and radiators heats up and expands. This water expansion causes the pressure to increase in the whole system. So, when the heating is on you should notice the boiler pressure on the gauge to increase slightly but not above 2 bar.

What is the correct pressure for a boiler?

between about 1-2 bars
Normal boiler pressure should be between about 1-2 bars. The ideal boiler pressure is often marked as a range in green on the gauge itself. With red indicating the low and high boiler pressure zones. Bear in mind that your boiler may continue to work if the pressure is in these red zones.

What should boiler pressure be when heating is on?

What pressure should my boiler be when the heating is on? A boiler’s pressure gauge will usually sit between 1 and 2 bars when it is turned on. The exact recommended pressure level will vary depending on the boiler manufacturer, but generally, anywhere between 1.0 and 2.0 bar is ideal.

When to re pressurise a Worcester Bosch boiler?

However, when the boiler has been off for a while, the pressure is near enough back to zero after cooling right down which has forced me to re-pressurise to get the pressure back up to 1. I’ve been through this process a few times of re-pressurising when cold but then having to reduce the pressure when hot.

Why is there no hot water in my Worcester Boiler?

Is your Worcester boiler problem relating to no hot water? There are a few scenarios that can lead to a lack of hot water. These include a faulty diverter valve (typical, if the heating works, but hot water doesn’t). But, it could also be due to lack of power, a stuck Y/S-plan valve, faulty PCB unit, or even a problem with the heating pump.

What causes a fault code on a Worcester Bosch boiler?

Condensing boilers like Worcester Bosch, have a condensate pipe. This vents harmful gases from your property. Unfortunately, it’s a common problem with Worcester’s that the condensate pipe gets blocked. This will cause an EA229 fault code to be displayed on your boiler. Check the condensate pipe for obstructions.

What’s the pressure on a Worcester Greenstar condenser?

Have Worcester Greenstar 30CDI condenser boiler and the pressure gauge has gradually crept into the red zone (hovering around 3). I have the pressure relief key but can’t locate the connector under the boiler.