Before calling out a heating engineer, resetting your boiler is often the first step to get things working again. Whether it's locked out due to low pressure, a power cut, or a minor system fault, knowing how to reset your boiler safely can often resolve the issue quickly. This guide walks you through how to do it and when it’s time to call in a professional.
How to Reset a Boiler: Step-by-Step Guide
What Is a Boiler Lockout?
A boiler lockout is a safety feature triggered when the system detects a fault. This could be something simple, like a loss of gas pressure or a more complex internal issue. Most modern boilers will show an error or fault code, which can help identify the problem.
Step 1: Read the Display Panel
Check your boiler’s display screen for any fault codes or warning lights. These codes are a clue as to why the boiler has shut down. If you have the manual to hand, it should include a list of error codes and their meanings.
Step 2: Find the Reset Button
The reset button is usually located on the boiler's front control panel. It might be labelled as "reset" or indicated with a circular arrow symbol. On some models, it may be part of the digital screen.
Step 3: Reset the Boiler
Press and hold the reset button for around 5 to 10 seconds. You may hear the boiler click or restart. Wait a few minutes to see if the boiler reignites and starts working normally. If it locks out again, do not continue to reset it repeatedly.
Step 4: Monitor for Any Further Problems
Once reset, the boiler should heat your water and radiators again. If you still see warning lights or strange noises, the problem may be more serious and require professional attention.
When You Shouldn’t Reset the Boiler
Avoid resetting your boiler if:
- You can smell gas or suspect a leak
- The pressure gauge is too low or too high
- You hear loud banging or gurgling sounds
- The boiler has needed multiple resets in a short time
Resetting a boiler can be helpful for minor glitches, but for persistent or safety-related faults, it’s essential to call a Gas Safe registered engineer.
Looking for Help with Your Boiler in Hoddesdon, Ware, Hertford or Hertfordshire?
SG Plumbing & Heating offers professional boiler repairs, servicing, and safety checks across Hoddesdon, Ware, Hertford and throughout Hertfordshire. Call us on 07943 985998 or fill out our contact form to book a visit with one of our Gas Safe engineers today.
