1. Why is High Boiler Pressure a Concern?
High pressure in your boiler can put excessive strain on the system, leading to leaks, damage to components, and even boiler failure. It’s crucial to keep the pressure within the recommended range to ensure the safe and efficient operation of your boiler.
2. Check the Pressure Gauge
The first step is to locate the pressure gauge on your boiler. It is usually located on the front panel and can resemble a small circular dial or a digital display. Check the current pressure reading to determine if it is indeed too high.
3. Bleed Radiators
If you notice high boiler pressure, it may be due to trapped air in your radiators. Bleeding your radiators will release the trapped air and help lower the pressure. To do this, follow these steps:
- Turn off your heating system and wait for it to cool down.
- Place a towel or container beneath the radiator’s bleed valve.
- Using a radiator key or flat screwdriver, slowly turn the bleed valve anticlockwise until you hear a hissing sound.
- Wait for the hissing sound to stop and small amounts of water to escape.
- Close the bleed valve by turning it clockwise.
4. Check the Filling Loop
If bleeding your radiators doesn’t resolve the issue, the next step is to check the filling loop. The filling loop allows you to increase the water pressure in your boiler system. If it is left open or partially open, it can lead to high boiler pressure. Make sure the filling loop valves are tightly closed, which should help reduce the pressure.
5. Release Pressure Through the Pressure Relief Valve
If the above methods haven’t lowered the pressure, you can use the pressure relief valve. This valve is typically located on the underside or side of the boiler and is designed to release excess pressure. To release pressure safely:
- Place a container beneath the pressure relief valve.
- Gradually open the valve, allowing excess water to escape. Keep an eye on the pressure gauge and close the valve when the pressure reaches the desired level.
- Monitor the pressure gauge over the next few days to ensure it remains within the safe range.
Remember, if you are unsure or uncomfortable performing these tasks yourself, it’s always best to contact a professional heating engineer and seek their assistance. They have the necessary expertise to handle boiler pressure issues safely.
By following these tips and techniques, you can effectively lower your boiler pressure and ensure the long-term performance and safety of your system.