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How to reset a boiler

Boilers are designed to shut down automatically when they detect a fault, helping protect your system and your home. In many cases, these faults are minor and can be resolved by resetting the boiler. But how do you safely reset a boiler, and when should you call in a professional? In this blog, we’ll guide you through the simple steps to reset your boiler and explain what to watch out for.

How to Reset a Boiler

how to reset a boiler?

Step 1: Identify the Problem

Most modern boilers display an error code or flashing light when a fault occurs. This could be caused by low pressure, ignition failure, or a temporary sensor fault. Refer to your boiler’s manual to check what the error code means—some may require a simple reset, while others might need professional attention.

Step 2: Locate the Reset Button

Boiler reset buttons vary depending on the make and model, but they’re usually found on the front control panel. It may be:

  • A small button you push
  • A rotary dial you turn
  • A digital interface with a reset option

If you’re unsure where to find it, check your boiler manual or search online for a guide specific to your model.

Step 3: Press and Hold

Once you've located the reset control, press and hold it for around 5 to 10 seconds, or until you see the boiler’s display flicker or the reset sequence begin. Let go once the boiler starts to reboot.

You may hear the boiler click or attempt to ignite. If successful, the error message should clear, and the boiler will resume normal operation.

Step 4: Monitor the System

After a reset, keep an eye on the boiler. If it fires up and stays on, the issue may have been temporary. However, if the boiler locks out again with the same fault code, it’s likely a recurring issue that needs diagnosing.

When Not to Reset Your Boiler

Avoid repeatedly resetting a boiler that continues to shut down. This can put strain on the system or mask a more serious problem. Contact a Gas Safe engineer if:

  • The boiler fails to reset
  • You smell gas or notice water leaks
  • The same error returns frequently
  • You’re unsure what caused the fault

Need Boiler Help in Bedford or Milton Keynes?

At FixBot, we help homeowners safely get their heating systems back up and running, whether you need a quick reset, a repair, or a full diagnostic check. Serving Bedford and Milton Keynes, our expert team is on hand to offer clear advice and fast, professional support.

Call us today on 01234 815101 to book your boiler service or repair.