Ideal Boiler L2 Fault Code- How To Fix

Living in the UK, we all understand the importance of boilers, especially in winter. With some maintenance and care, our boiler keeps us warm during winter for years. However, during this journey, the boilers may face some problems (error codes), which, if not dealt with, can cause serious problems to your appliance, resulting in a complete breakdown.

Different manufacturing brands of boilers are on the market, each with its own fault/error codes. Today’s blog will discuss the common and specific fault code of the Ideal Logic boiler, the L2 fault code. The Ideal boiler L2 Fault code indicates ignition problems with your boiler, generally due to flame loss.

Please read the blog until the end. We will discuss the Ideal boiler L2 fault code, its causes, cost, and possible preventive measures.

Related Article: List of Ideal Boiler Fault Codes

Quick Overview: What are boiler fault/error codes?

Boiler fault/error codes are an alphanumeric series displayed on your boiler indicating potential faults. Understanding these codes and taking the right action is essential to prevent major boiler breakdowns in the future.

What does Ideal L2 Fault mean?

If you see code L2 on your boiler, it indicates an ignition problem. This issue means your boiler tried to ignite itself but could not due to flame loss. In such situations, the boiler locks itself and halts operations to prevent further problems.

What are the common signs indicating an L2 boiler fault?

The common indicating signs of the fault code L2 on your boiler are the following:

1. If your boiler is resetting or locking itself out more frequently.
2. Hearing the ignition sound but not seeing the flame light up.
3. The boiler is failing to provide heat and hot water.

Causes of Ideal L2 Fault?

Gas pressure fault

When the boiler does not get enough gas pressure, it might display an L2 Fault. The reason could be damaged gas pipes or a lack of gas pressure from your gas supplier.

Solution:

Contact your gas supplier to check with him. If there is no problem with the supply, then the problem lies with the pipes. You should get the pipe replaced. The best action is to contact a Gas Safe registered engineer, let him inspect the problem, and provide you with a solution.

Gas Valve fault

Another reason behind the L2 fault displayed on your boiler could be a faulty gas valve. The gas valve allows gas to flow to your boiler, which helps it ignite and provides your home with heating and hot water. If there is a fault with the gas valve, the boiler cannot heat or provide hot water.

Solution:

This problem can be solved by contacting a certified professional and letting them fix the faulty valve. However, if you find that the condition of the gas valve is damaged or worn out, replacing the gas valve is a more viable option.

Flame Sensor Fault

Your boiler’s flame sensor is responsible for giving signals to the PCB (Printed Circuit Board) that the flame is igniting. If the flame sensor is faulty, the PCB won’t receive signals and will shut off the gas stream, resulting in an L2 code being displayed on your boiler.

Solution:

The solution is to contact a Gas Safe registered engineer, let him inspect the sensor, and follow his advice if he suggests flame sensor replacement.

Gas Meter Issues

In winter, the gas meter outside your home can freeze, causing your boiler to display an error code. This is a common problem, just like the frozen condensate pipe.

Solution:

To solve the problem, contact a certified professional who will thaw the meter. Once the ice is melted, the L2 code will stop displaying on your boiler screen.

Frozen Condensate Pipe

A boiler’s condensate pipe carries acidic water from the boiler to the outside of your home. However, the condensate pipe freezes in winter, causing the boiler to halt its operations and display the L2 code.

Solution:

This issue can be resolved by defrosting the pipe by pouring hot water. For a more detailed guide, please read our blog on how to defrost a frozen condensate pipe.

How to Fix the Ideal Boiler L2 Fault Code

So far, I have told you the indications and causes of the L2 Fault code. Now, let’s discuss how you can solve the problem by following some DIY tips:

• Try resetting the boiler. Press the reset button for 10-15 seconds to see whether the L2 fault code disappears.

• If resetting the boiler doesn’t work, inspect the pressure on your boiler’s pressure gauge. If it is 1.5 bars, great! If it’s too low, you must re-pressurise your boiler via a filling loop.

• Try bleeding your radiators. Sometimes, air gets trapped, causing heating disruption around your home. Visit our step-by-step guide on how to bleed a radiator.

• Check your thermostat and ensure the temperature and timer are set correctly.

When to Call a Professional

If the above tips don’t work, then check for the following signs and contact a Gas Safe engineer immediately:

• If you hear strange noises coming from your boiler
• If there is water leakage near your boiler
• If you smell gas near the boiler, then immediately shut down your boiler and contact National Gas Emergency Service on 0800 111 999.
• If your boiler requires frequent resetting
• If you haven’t had your annual boiler service

Boiler Service

Ensure your boiler runs efficiently and safely with our professional boiler servicing. Regular maintenance will save you money in the long run and potentially prevent breakdowns.

Schedule a Boiler Service

How Much will it cost to repair an L2 boiler fault?

Depending on the problem, expect to pay between £150 and £300. However, consider the factors that might influence the final cost of repair, which include the severity of the repair, location, age of the boiler, and urgency of the repair. Although if you have a boiler cover in place, then the cost of repairing an L2 fault might be minimised, depending on the level of coverage.

Conclusion

After reading the above, you know the signs, causes, and possible solutions for ideal boiler fault codes. As mentioned above, a few tips might help you solve the problem, but if it doesn’t, then contacting a gas-safe engineer is the right option. Also, above, I have mentioned signs that indicate that you must contact a Gas Safe registered engineer, so make sure you go through them. Moreover, sometimes, the fix won’t be enough due to the age of your boiler. If you find yourself with a faulty boiler, investing in a new one will be a more viable option.