How do I reset my Baxi boiler
Mia Walsh
Published Apr 21, 2026
To reset the boiler, turn the selector switch to the R (Reset) position. Hold for at least 5 seconds and release. The fault code will be replaced with the boiler’s current temperature. At this point on a neon indicator boiler model, the flame failure light will stop flashing and will be replaced with the burner light.
Why is my Baxi boiler not firing up?
A common culprit for this fault on Baxi boilers is a lack of pressure. If your system is set lower than 1.5 bar then it won’t operate correctly. Now, the quick fix is to top up the pressure using the filling loop. And once you’ve topped up the pressure, you’ll need to reset the boiler.
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.
How do you manually reset a 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.
Why do I have to keep resetting my Baxi 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.
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.
Why is my boiler not kicking in?
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.
Should I reset my boiler?
You should only have to reset your boiler from time to time. If you find you are frequently needing to do this then it is likely that there is a fault in the system that needs to be rectified.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.
How do I reset my Baxi 400 boiler?To reset the boiler, turn the selector switch to the R (Reset) position. Hold for at least 5 seconds and release. The fault code will be replaced with the boiler’s current temperature. At this point on a neon indicator boiler model, the flame failure light will stop flashing and will be replaced with the burner light.
Article first time published onHow do I reset my heating system?
- First, turn off the power supply to the furnace by turning off the breaker in the circuit box.
- Locate the reset button on the furnace and press it to reset the furnace. …
- If the button is popped up, press it down.
- Return the cover to the blower compartment and turn the power on.
Where is reset button on gas boiler?
Your boiler restart button, also referred to as ‘lock out’, is located on your boiler burner unit. Usually, the burner unit front door cover will need to be removed to gain access to the control box reset (when ‘tripped’ the button is normally illuminated).
How do you reset the pilot light on a Baxi boiler?
To light the pilot: Looking through the pilot viewing window press the gas control knob fully inwards and hold. Press in igniter button and release. Repeat until pilot ignites. Continue to hold in gas control knob for approximately 15 seconds and then release.
What number should a Baxi boiler be on?
There’s no magic number for the ideal temperature. If you’re looking for a good balance of warmth and efficiency, you want to set your boiler to at least 65°C. Setting it a few degrees higher won’t hurt. But it’s important not to set it any lower than that.
Why is my Baxi boiler flashing blue?
This error code means your water pressure is low. The normal water pressure for a Baxi is between 1.0 and 2.0 bar. You may need to check your gauge and note if the water pressure is less than 1.0 bar.
How many times can I hit the reset button on my furnace?
Don’t hit “reset” more than twice. The process pumps oil into the burner chamber, where it can accumulate if you have no ignition. Then when the furnace finally does start, it can do so explosively. So if the button won’t reset, or quickly pops up again, it’s time to call a professional repair service.
What does lockout mean on boiler?
Your boiler has probably gone into ‘lockout’, which is when it shuts down because it’s detected a problem. The good news is that if it’s a common fault, you may not have to call in a boiler engineer. The first thing to do when your heating goes out is check the power in your home, and the pressure in your boiler.
Why won't central heating come on?
Check the Pilot Light – A dirty or faulty pilot light is one of the main reasons a gas furnace won’t start. … Make Sure Natural Gas Is Flowing into the Furnace – If your furnace won’t start, it may be because the unit isn’t getting any fuel. Simply check the gas control valve to ensure it’s in the “On” position.
How do I relight my pilot light?
Turn the knob to “Pilot” and hold down the “Reset” button. Using a long lighter, bring the flame close to the pilot opening. This should ignite the pilot light. Once the pilot is lit, you can release the reset button.
What happens when your pilot light goes out?
If your pilot light repeatedly goes out, this is a likely culprit. If this flame sensor should fail, gas will continue to flow even after the pilot light has been extinguished, causing a safety hazard, and requiring immediate repair.
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 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 Baxi Ecoblue boiler?
To reset the boiler press and hold the reset button for a minimum of 5 seconds, then release. If the process is successful the boiler will reset and operate as normal.
What does a flashing radiator symbol mean on a Baxi boiler?
Baxi Boy Active Member It just means the boiler has got hot enough and burner is off,but water still circulating around radiators,until it cools a bit,then burner will relight.
Why does my hot water work but not my heating?
If you’ve got hot water, but no central heating then there are more issues it could be if it’s not the thermostat or the boiler pressure. Common reasons for this particular fault are broken diaphragms and airlocks, or a motorised valve failing.
Where is the reset button?
Alternatively referred to as the reset switch, the reset button allows devices that utilize it, such as a computer or peripheral to be rebooted. Usually, the button is on the front of the device, next to or near the power button.
How do I reset my central heater?
- Find the switch mounted on or near the furnace and turn the power off. …
- Wait about 10 seconds.
- Turn the switch or breaker back on and check the furnace to see that it has power again.