Remember, dealing with gas appliances requires caution. If you’re unsure about any steps, or suspect a gas leak (smell like rotten eggs), always call us, a registered Gas Safe engineer immediately. Our expertise ensures your safety and the proper functioning of your boiler system.

Understanding Boiler Pressure

Your boiler operates at a specific pressure range, typically between 1 and 2 bar. This pressure ensures the smooth circulation of heated water throughout your central heating system. If the pressure drops below this range, your boiler might not function efficiently or at all.

Troubleshooting Steps (For Users Comfortable with DIY): Before diving in, make sure you have the following tools handy:

• Radiator key
• Rag or towel

1.Check for Leaks:

Leaks are a common culprit for boiler pressure loss. Look for any damp patches around your boiler, pipes, and radiators. Signs of corrosion or dripping water can also indicate a leak. If you find a leak, it’s best to call a Gas Safe engineer for a proper repair.

2.Bleeding Radiators:

Air trapped in your radiators can prevent water from circulating properly and lead to pressure loss. Here’s how to bleed your radiators safely:

• Turn off your boiler and central heating system.
• Locate the bleed valve on each radiator. It’s usually a small square nut at the top of the radiator.
• Place a container under the bleed valve to catch any water.
• Use a radiator key to slowly open the valve. You should hear a hissing sound as air escapes.
• Once water starts coming out steadily, close the valve firmly. A slight tightening is enough, don’t over-do it.
• Repeat this process for each radiator in your home.

3.Re-pressurizing the Boiler (For Comfortable DIY Users Only):

Caution: This step should only be attempted if you’re comfortable doing so and your boiler manual provides clear instructions.  Consult your boiler manual for specific details on locating the filling loop and safely repressurizing the system.

In general:

• Locate the filling loop on your boiler. It’s usually a flexible hose with a tap on either end.
• Connect one end of the hose to the boiler’s filling point (consult your manual).
• Open the cold water mains tap (usually located under your kitchen sink).
• Open the tap on the filling loop slowly, keeping an eye on the boiler pressure gauge.
• Once the pressure gauge reaches the recommended level (usually between 1 and 2 bar), close both taps on the filling loop and the cold mains tap.
• Remember, consult your boiler manual for specific instructions.

Conclusion:

By following these steps, you can often fix a boiler losing pressure issue yourself. However, if the pressure continues to drop, or you’re unsure about any steps, don’t hesitate to call a registered Gas Safe engineer for a professional diagnosis and repair. Their expertise ensures the safe and efficient operation of your boiler system.

We hope this guide has been helpful! Share it with your friends or contact us if you have any questions.

For professional boiler servicing and repairs in the UK, contact Soto Plumbing and Heating Ltd today!