How do you reset a Worcester combi boiler
Nathan Sanders
Published Mar 23, 2026
Most modern boilers will have a reset button that’s located on the boiler’s display, near where the fault code is being shown. As an example, the reset button on a Vaillant EcoTec will be flame with a line through it. This is the reset and ignition button.
Where is the reset button on a combi boiler?
Most modern boilers will have a reset button that’s located on the boiler’s display, near where the fault code is being shown. As an example, the reset button on a Vaillant EcoTec will be flame with a line through it. This is the reset and ignition button.
Where is the reset button on Worcester 240 combi boiler?
There should be a small tiny even, red button behind or under the main control box push this once only. Failing that a reboot by turning the electric to it off then on again should do.
Why is my Worcester boiler not firing up?
If the boiler is not igniting, there is a possibility the valve is blocked, seized or there is damage in the wired connections. No Pilot Light: When the boiler is not igniting and the pilot light has gone out, this usually means debris has blocked the jet.How do I reset my Worcester boiler?
To reset the boiler turn the Central heating temperature knob anticlockwise to the “RESET” position and hold for approximately five seconds and then turn the knob back to the original temperature setting.
Why is my boiler not coming on?
There are a variety of reasons why your boiler may not be working; common examples include the boiler pressure being too low or too high, a power cut, gas supply issues, a faulty pilot light, a frozen condensate pipe, faulty internal components or a more complex issue.
How do I get the pilot light back on my boiler?
- Find the pilot light assembly and its reset switch. The furnace’s pilot light is usually positioned at the bottom of the unit by a knob. …
- Set the reset switch to off. Turn the knob to the “Off” setting. …
- Wait a moment. …
- Relight the pilot light. …
- Observe the furnace.
How do I reset my Worcester 28cdi boiler?
The appliance can be reset by pressing the reset button and holding in for 5 seconds. Check that the gas supply has not been interrupted. If this condition continues to occur, then call a service engineer.How do you fix a boiler that won't ignite?
If you still can’t light your boiler, there could be debris blocking the jet. Boiler pilot light jets are relatively cheap to replace but can also be removed, cleaned and re-installed. Your heating engineer will be able to advise you on the best course of action and replace the jet accordingly.
Why do I have to keep resetting my Worcester boiler?If you find that you keep having to reset your boiler, it’s likely that there could be a fault with your heating system. This fault could eventually lead to a more serious issue such as a boiler breakdown, so it’s best to seek out a solution as soon as possible.
Article first time published onWhy is the reset button flashing on my Worcester boiler?
Slowly flashing blue light, and a flashing lockout reset button – This usually means that there is a lockout with the ignition. Make sure that there is gas present and that your boiler is at the right pressure levels. Next, you want to check the Combustion CO2 level.
What does a flashing blue light on a Worcester boiler mean?
When a Worcester Bosch has a fast flashing blue light this means the boiler has gone into service mode. … Either the boiler has been serviced recently and has accidentally been left in its service mode or, alternatively, you may have accidentally knocked the switch yourself.
How do I reset my Worcester Greenstar 2000 boiler?
In most cases, you will simply need to hold the button marked ‘reset’ for three seconds. In some models you may see a reset light at the end of the temperature dial. In this case, just turn the dial down to the reset light, leave it there for three seconds and then turn it back to its original position.
Do combi boilers have a pilot light?
In a combi boiler pilot light depends on demand ,hot water or heating . In some water heater has a pilot light on . If despite of demand there is no sign of flam,then we need to check some other measures.
How do you reset the pilot light?
- Step 1: Turn off your furnace. …
- Step 2: Locate your gas valve. …
- Step 3: Hold down the red button. …
- Step 4: Light the pilot light. …
- Step 5: Let go of the button. …
- Step 6: Turn your gas back on. …
- Step 7: Turn your furnace back on.
How do you light the pilot on a Worcester boiler?
- Turn the gas to ‘pilot. ‘
- Press and hold the reset switch for one minute and hold a flame to the pilot light at the same time. …
- If all is working as expected, return any casing/doors and turn the gas from ‘pilot’ to ‘on.
Why does my boiler wont stay lit?
If it’s not staying lit though, then you’re probably dealing with a thermocouple issue. The thermocouple of a boiler system is a long metal wire that acts as a heat sensor for the pilot light. … If the pilot light goes out, then the electrical current stops, and the gas valve closes.
How do I know if my boiler pilot light is out?
- Locate the front cover panel on your furnace. It should be a little door that’s easily visible. …
- If your pilot light is on, it should be easy to see – your eyes will be drawn to the little flame.
- If you don’t see a flame, your pilot light is out.
- If there is a flame, check the color.
How do I reset my boiler?
- Refer to your boiler manual.
- Push the reset button for 10 seconds.
- Wait 2 – 3 minutes, the boiler should fire up.
- Repeat twice if the first attempt fails.
- If the boiler still fails to fire up on the third attempt, double check the gas supply.
How do I reset my Worcester boiler Greenstar 30si?
►To reset boiler press the reset button. The reset button will no longer be illuminated and the mains indicator will stop flashing. The boiler will function normally, dependent on programmer and room thermostat settings.
How do I reset my Worcester Greenstar 28i Junior boiler?
To reset the boiler press the reset button for approximately five seconds. When the boiler resets the reset button will no longer be illuminated. 2. The mains indicator will no longer be flashing.
Why does my combi boiler need resetting?
Common causes for regular breakdowns include a broken pump, a leak somewhere in the system, an electrical issue or a blocked heat exchanger. These will require a qualified engineer to fix them. If your boiler is more than twelve years old, you may need to consider replacing it.
Why do I have to keep hitting the reset button on my boiler?
If you have a gas or oil furnace, the reset button may trip if you are out of fuel. This fix is as simple as making sure there is fuel in either the gas or oil tank. … Blocked or closed valves could be another reason the tank reset button keeps tripping.
Should the blue light be on on a Worcester boiler?
The blue light on a Worcester Bosch boiler is typically there to highlight that the boiler has power going to it. … In addition, it may point to a socket failure – it is worth checking a few other appliances in the house to check that they work OK, using the same socket that the boiler is usually plugged into.
Where is the error code on a Worcester boiler?
The boiler will display an alphanumeric fault code to indicate the fault group. A three-digit number that can be accessed via the info menu by pressing the spanner/return button during a blocking error or when in normal operating status. The cause code should flash on the display during a locking error.
How do I fix EA error on my Worcester boiler?
Press and hold the reset button for 5 seconds to see if the system relights. This fixes the problem in the majority of cases and can be tried once or twice to see if you can resolve it.