This guide explains exactly when and how to reset a boiler, what a reset actually does, when it won’t fix the problem, and when ongoing boiler cover or servicing is the smarter long-term solution.
Where Is The Reset Button On A Boiler?
The reset button on a boiler is usually located on the front control panel, but its exact position varies by manufacturer and model.
Boiler reset buttons are commonly marked with a circular arrow, flame icon, or the word “reset.” On some modern boilers, the reset function is integrated into a digital display or multifunction dial rather than a physical button.
If you’re unsure, the boiler’s user manual will clearly show the reset control and explain how long it should be pressed.
How To Reset A Boiler Step By Step?
The correct way to reset a boiler is to follow the manufacturer’s procedure carefully and only attempt a reset once or twice.
Resetting a boiler safely typically involves:
- Ensuring the boiler has power and gas supply
- Checking system pressure is within the normal range
- Pressing and holding the reset button for 3–5 seconds
- Waiting for the boiler to restart its ignition cycle
After resetting, the boiler should fire up within a minute or two. If it does, monitor it for stable operation.
What Should You Check Before Resetting A Boiler?
Before resetting a boiler, you should rule out simple issues that could cause repeated lockouts.
Pre-reset boiler checks include confirming the pressure gauge reads between 1.0 and 1.5 bar, ensuring the gas supply hasn’t been interrupted, and checking that the electricity supply is on. In cold weather, frozen condensate pipes are another common cause of lockouts that resetting alone won’t resolve.
Addressing these issues first reduces the risk of repeated faults.
Can Frequent Boiler Resets Shorten Boiler Lifespan?
Frequent boiler resets can contribute to wear on ignition components and control systems if the underlying fault isn’t addressed.
Ignoring the root cause of lockouts increases stress on parts such as fans, electrodes, and pumps, potentially leading to premature failure and higher repair costs over time.
When Should You Not Reset A Boiler?
You should not keep resetting a boiler if it repeatedly locks out after restarting.
Repeated boiler lockouts indicate a fault such as a failed ignition electrode, blocked condensate pipe, faulty fan, or sensor issue. Continually pressing the reset button can put extra strain on components and potentially make the problem worse.
If the boiler locks out again shortly after a reset, it’s time to stop and seek professional help.
When Should You Consider Boiler Cover Instead Of Repeated Resets?
The best time to consider boiler cover is when you find yourself resetting the boiler more than once.
Repeated boiler resets are a sign that an underlying issue hasn’t been resolved. While the reset button can temporarily restore operation, it does not fix mechanical faults, worn components, or system problems such as pressure loss or ignition failure.
This is where many homeowners and landlords choose to consider boiler cover plans and boiler service plans from Boilers 2 Go, ensuring faults are diagnosed properly and repaired before they lead to breakdowns or costly emergency callouts.
FAQs
Can Resetting A Boiler Fix Low Pressure Or No Hot Water?
Resetting a boiler can restore hot water if the lockout was caused by a temporary condition, but it will not fix low pressure or mechanical faults.
Boiler resets and pressure issues are often linked, but low pressure must be corrected separately by repressurising the system. Similarly, no hot water caused by a diverter valve or sensor fault won’t be resolved by resetting alone.
A reset is a tool, not a repair.
Why Do You Need To Reset A Boiler?
The reason you need to reset a boiler is because the appliance has entered a safety lockout to protect itself and your home.
Boiler lockouts are triggered when the boiler detects an abnormal condition such as low system pressure, ignition failure, frozen condensate pipes, or interrupted gas supply. Instead of continuing to operate unsafely, the boiler shuts down and requires manual intervention to restart.
A reset clears the fault state and allows the boiler to attempt a fresh ignition cycle. In many cases, especially after a temporary issue, this is all that’s needed to restore heating and hot water.
Can Resetting A Boiler Clear Fault Codes Permanently?
A reset can clear temporary fault codes, but persistent codes will return until the underlying issue is repaired.
Is It Safe For Tenants To Reset A Boiler?
Yes, tenants can reset a boiler if instructed, but recurring faults should always be reported to the landlord.
How Many Times Should You Try Resetting A Boiler?
Most manufacturers recommend no more than one or two reset attempts before seeking professional help.
Can A Power Cut Cause A Boiler To Need Resetting?
Yes, sudden power interruptions can cause boilers to lock out and require a manual reset once power is restored.
Does Resetting A Boiler Affect Energy Efficiency?
Occasional resets don’t affect efficiency, but unresolved faults that cause lockouts can reduce overall system performance.
I’m Penny North, a home energy heating expert. My mission is to demystify new boilers and complex heating systems to help you achieve a warm, cosy home with lower energy bills and a smaller environmental footprint.