top of page
  • Blockage Inspectors

Dealing with High Boiler Pressure: A Step-by-Step Guide

High boiler pressure can be a concerning issue that requires prompt attention to prevent potential damage to your heating system. At Blockage Inspectors, your plumber Enfield, we understand the importance of maintaining optimal boiler pressure for safe and efficient operation. In this comprehensive step-by-step guide, we'll walk you through the process of dealing with high boiler pressure and potential methods to rectify the problem. Let's get started on resolving the high boiler pressure issue!

Call Blockage Inspectors - Emergency Plumber in Enfield

Step 1: Turn Off the Heating System

The first and most crucial step is to turn off your heating system immediately. Shut down the boiler and any associated power switches or controls. Let the system cool down for a while before proceeding.

Step 2: Identify the Pressure Gauge Reading

Check the pressure gauge on your boiler to identify the current pressure reading. The ideal pressure range is typically between 1 and 1.5 bar, but this may vary depending on your boiler's make and model.

Step 3: Bleed Radiators (If Needed)

If the boiler pressure is only slightly higher than the recommended range, you can try bleeding the radiators to release any excess air, which may reduce the pressure. Use a radiator key to open the bleed valve on each radiator, allowing any trapped air to escape.

Step 4: Locate the Filling Loop

The filling loop is a connection between the mains water supply and the boiler, allowing you to top up the system's water pressure. Locate the filling loop and ensure that both ends are securely attached.

Step 5: Release Excess Pressure

If the boiler pressure is significantly higher than the recommended range, you may need to release some water to reduce the pressure. Consult your boiler's manual for specific instructions on how to release excess pressure safely.

Step 6: Recheck the Pressure Gauge

After releasing excess pressure, recheck the pressure gauge reading to ensure it falls within the recommended range. If the pressure is still too high, repeat the process until it reaches the correct level.

Step 7: Close the Filling Loop

Once the boiler pressure is back within the recommended range, close the filling loop securely to prevent overfilling.

Step 8: Restart the Heating System

With the boiler pressure normalized, you can now restart your heating system. Turn on the boiler and any associated power switches or controls.

Step 9: Monitor the Boiler Pressure

After restarting the heating system, monitor the boiler pressure over the next few hours or days to ensure it remains stable within the recommended range.

By following these step-by-step instructions, you can effectively deal with high boiler pressure and restore the system to a safe and efficient operating condition. However, if you encounter any difficulties or need expert assistance, don't hesitate to contact our team at Blockage Inspectors. Our experienced engineers are ready to help you diagnose and rectify boiler issues, ensuring your home remains warm and comfortable throughout the year. Contact us today for reliable and efficient heating solutions!

7 views0 comments

Recent Posts

See All






70 Bounces Rd, Enfield N9 8JS

Friday Open 24 hours
Saturday Open 24 hours
Sunday Open 24 hours
Monday Open 24 hours
Tuesday Open 24 hours
Wednesday Open 24 hours
Thursday Open 24 hours

bottom of page