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Resetting a Boiler: Everything You Need to Know

Last updated on: 30 October 2024

Resetting a Boiler: Everything You Need to Know

What is a boiler reset?

When modern boilers detect input variation, they tend to lockout. It is then necessary to reset your boiler after each lockout.”

Resetting your boiler on a regular basis is inconvenient and engaging a competent engineer every time your boiler shuts down is not an option. We’ll explain why your boiler may need to reset frequently and what you can do to resolve the problem.

What is a boiler lockout?

What is a boiler lockout

The term “boiler lockout” refers to the fact that your boiler has shut down. When a boiler locks up, it stops working and an error code appears on the display to alert you to the problem. To check whether the boiler is locked out, look for problem codes and flashing lights (red or green). What causes a boiler lockout?

Reasons for boiler lockout

Water Pressure: If the water pressure fluctuates or becomes too low or too high, the boiler may lockout. The system will overheat if the pressure is too low, and the boiler will be overwhelmed if the pressure is too high.

Ignition Failure: The burner will not ignite if there are blockages in the burner or if there is insufficient gas pressure. After three failed attempts, most boilers go into lockout mode.

Heat Exchanger Blockage: The heat exchanger can get blocked due to accumulated sludge or limescale. The water flow will be restricted, making the boiler sound like a kettle. Your boiler will enter lockout mode to prevent further damage caused by a blockage in the heat exchanger.

Faulty circuit: If a gas or electric boiler system senses some free current flow or a defect in the circuitry, it will lock out instead of operating normally.

Problems with the fan: If the fan on a boiler fails, the boiler might become a hazard since the gases cannot exit down the flue. As a result, in such high and low fan functioning scenarios, boilers lockout.

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What happens when your boiler locks out?

Before we go through why a new boiler could lock up, let’s go over what you might see when your boiler has a problem. Only by being aware of these indicators will you be able to determine when your boiler needs to be reset.

The red or green LEDs or indicators will begin to flash initially.
Your taps will run out of hot water, and your radiators will become ice cold.
On the boiler’s display screen, you’ll see a fault code.

Resetting boiler

Resetting a boiler

A boiler that does not work efficiently is not the best choice for your home because it may cause serious pipe damage. Some new boilers, on the other hand, lock out as soon as they are in danger of being damaged.

Once it’s fixed, you’ll need to know how to reset the boiler so you can enjoy hot water in the winter. Here’s all you need to know about resetting your boiler following a power outage.

Main causes of resetting your boiler

Extremely high pressure
Thermostat malfunction
Pump failure
System of leaking
Heat exchanger with blocked plates
Various parts that are old or worn out
The accumulation of residues in the pipes

How can I reset my boiler?

Depending on the model, the reset boiler button is situated in a different location on each boiler. If you can’t find the switch, consult the boiler’s manual, which will also include instructions on how to reset your unit.

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Press and hold the button for 10 to 15 seconds once you’ve found it. The boiler will begin heating in a few minutes after you leave it. If it does not heat, however, do not press the button repeatedly, since this will cause severe harm.

When your boiler has been reset, it will light up and display a green light to indicate that it is operational. If the boiler does not reset, call the company or an engineer to resolve the problem.

How to reset the boiler after a power cut?

Your central heating system will not work during a power cut due to a shortage of electricity. Despite the fact that a boiler requires gas to heat water, it will not operate without sufficient power. So how do you reset the boiler after a power cut?

Most of the time, all you have to do is locate the reset button and hold it for at least 10 seconds. However, by moving the knob counter clockwise to the reset position, you can alter the central heating temperature. Hold the knob in place for five seconds before returning it to its original temperature. If the boiler still doesn’t work, you will have to keep resetting the boiler and you should have it repaired the boiler or you should have it repaired by a professional.

How to reset your Ideal boiler?

For Logic: You must check the knob of the boiler for resetting and then set it back at its respected place.
For Logic+: Just press the restart button
For Vogue: Just push the small “r” button

How to reset my Worcester boiler?

For CDi Classic: press the reset boiler button and hold it for 3 seconds
CDi Compact: Just press the reset button.
Greenstar i: Quickly press the reset button
Greenstar Si: Just press the reset button
Greenstar 2000: Hold the buttons up and down at the same time until unless the error symbol is gone. Press to hold the up and down buttons at the same time until RESET appears at the display.
Greenstar I Junior: Just hold on to the reset button for 5 seconds.

If the boiler starts working again, you know the reset was successful. Your Worcester boiler, on the other hand, may indicate that it has reset when:

The flashing of the reset button ceases.
On the digital display, the word “reset” appears beside a tick.
The error code has stopped flashing.

If there is a problem with your Worcester boiler, it must be resolved before you may reset it.

The boiler doesn’t turn on after resetting.

You’ve fixed the problem, reset the boiler, and are almost ready to start it up again when the boiler won’t turn on. In this instance, you’ll have to explore beyond the problem that the fault code indicated.

Check the pressure gauge to see whether it’s too high or too low — the needle should be sat around 1 bar if the original error code wasn’t about the boiler pressure.
Ascertain that the boiler is receiving power. Because the display screen will be lit, you’ll be able to tell. This is especially prevalent after a power outage, so double-check your fuse box.

When to call an engineer?

When to call an engineer

If your boiler constantly needs to be reset, there is most certainly a problem. When something goes wrong with your boiler, it’s nearly always better to call a professional, as it’s a device in the home that can pose a number of health and safety issues if not handled properly. Always consult an expert if you’re unsure.

They’ll be able to identify the problem and tell you whether you can fix it yourself or whether you need a new heating system.

Endnote

If you have to reset your boiler on a regular basis, you should consult a gas engineer to determine what’s wrong and the best course of action for you. If the problem persists, you should consider replacing your boiler or switching to a different heating system.