Ideal boilers are among the best available in the market, and its Logic model is one of the most popular. But even the best boilers can malfunction and stop working. The Logic boiler, for instance, may display the L2 error code and leave you wondering, “What is an Ideal Logic L2 boiler fault code?”
L2 is a standard error code in Ideal boilers, including the Logic model. It indicates an ignition issue and flame loss that can prevent it from working properly. But once the underlying issue is identified, it is easy to resolve the problem to ensure that the boiler is functional again.
The causes behind the L2 error code are gas shortage, valve problems, power loss, and more. How can you identify the problem to fix the boiler and bring it out of the lock-out mode? Let’s find out!
What is An Ideal Logic L2 boiler Fault Code??
If your Logic Boiler or any other Ideal boiler shows an L2 Fault Code, it’s a sign of a not-so-ideal situation. This code shows that the boiler is unable to turn on and does not have the flame to perform heating functions.
So, an L2 code means there’s a logic boiler ignition lockout out or an ignition fault. It is a serious problem that needs immediate action to prevent damage to the unit’s parts.
Common Problems Due to Ideal Logic L2 Boiler Fault Code
When you notice the L2 error, you may experience the following problems –
a) Inability to Ignite
If you experience failed attempts to turn on the Ideal Boiler five times, the machine will shut down. And you will also see an orange light to indicate this.
b) Loud Noise While Turning On
You may experience loud explosive sounds at the time of turning on the boiler. It indicates too much gas in the ignition chamber.
c) Gurgling Sound
You may hear a gurgling sound from the boiler – which is an abnormal occurrence. It’s possible that the waterways between the boiler and the condensate are blocked.
d) No Heating
Sometimes, an Ideal Combi may stop heating when the temperature is turned down, or the isolation valve for cold water is open. There might also be a zone valve problem.
e) No Flame
The boiler may fail to ignite the flame required for hot water. This can result from various causes like low gas pressure, insufficient gas, faulty components, etc.
Ideal Logic L2 Boiler Fault Code: Causes and Solutions
So what causes the L2 fault code in Ideal boilers? Let’s take a look at the underlying causes and find out how to fix these.
1. Intermittent Fault
The L2 fault code may just occur randomly, and the boiler will stop automatically. Usually, such random and inconsistent issues can be solved by resetting the unit.
Such sudden and inconsistent malfunctions do not give you the chance to detect the cause. However, if you face the problem regularly, consult an engineer.
You can reset the Ideal Logic by turning the control dial on the machine back to the reset position. For Logic+, you need to press the restart button.
Upgraded Ideal boiler models have a dedicated reset or R button. You can press this to fix the unknown problem and get the boiler working again.
2. Insufficient Power
A frequently ignored cause behind L2 error in an Ideal boiler is the lack of power supply to the unit. Though it uses gas to heat water, it needs electricity for some parts and mechanisms.
So an L2 error may occur if the power supply is cut off. This can happen due to a blown fuse, load shedding, or any other temporary reason for power shutdown.
The only time you can handle the power supply is if the fuses are blown. So, check the fuse box and check if any of the switches are in a downward position.
If so, push the switches up to return proper power supply to your appliances. But if there is a shutdown from the power company, you’ll have to wait for resumed services.
3. Insufficient Gas Supply
If there is a problem with the gas supply due to low credit, your boiler will not have sufficient gas to work. As a result, you will get the L2 fault code.
You can detect gas supply problems by turning on other gas-powered appliances. You should also check if the isolation valve near the gas metre is working properly.
Topping up the prepay gas meter or paying the gas bills should ideally fix the issue. If not, you should contact the gas supplier to identify and fix the issue.
You may also need to turn the isolation valve level to ensure that the gas supply to the house is on. If none of these solutions works, you will need an expert to identify the cause behind the gas supply problem.
4. Gas Pipe Problems
A drop in the gas flow is possible in winter months when the pipes begin to freeze, leading to an L2 code. It’s also possible that the boiler and the gas pipes are not in sync.
A large-capacity boiler may receive insufficient gas pressure if the diameter of the gas pipes is not large enough. If none of these is the problem, your supplier might be at fault for not maintaining the gas pressure.
To fix frozen pipes, use a space heater or heat lamp for pipes inside walls – or a heat gun or blow dryer for exposed pipes. Also, don’t forget to take preventive steps afterwards.
If it’s not a freezing issue, you will need to upgrade the gas pipes so that the diameter is ideal for the boiler. And when none of these is applicable, contact your gas supplier to fix the pressure problem.
5. Faulty Gas Valve
The valve through which gas enters the boiler may develop some disorder. Its movable parts may get stuck or develop rust, leading to a reduced gas supply.
As a result, the gas is not sufficient for the boiler. So, if you see an L2 alarm, it could be due to the disabled gas valve with faulty parts.
The problem of a faulty gas valve can be fixed by an engineer. They may have to dislodge the struck parts to enable sufficient gas flow.
But if the parts are damaged or rusted, they will have to be replaced or repaired. However, the cost of parts and labour charges might be quite high.
6. Faulty Spark Generator
The spark generator is responsible for igniting the flame to turn on the boiler. If your boiler’s ignition process is not working, the spark generator could be the culprit.
After prolonged usage, your boiler may develop some moisture buildup due to leakage. And that can wear out the electrode and the ignition lead responsible for the spark in the generator – thus causing L2.
To fix the generator, you must address the root problem, i.e., the moisture buildup. It happens when the boiler starts to leak.
A professional’s immediate attention can help identify the leakage source to determine how to fix it. Remember that leakage can damage internal parts of the boiler and lead to other errors or faults.
7. Faulty Flame Sensor
One of the major causes of the L2 error code in the Ideal Logic boiler is a faulty flame sensor. It is responsible for signalling the Printed Circuit Board or PCB about the ignition and all other stages.
However, a faulty flame sensor will fail to receive any signal and won’t send it to the PCB, which controls the entire unit. Such problems may occur due to rust buildup, a faulty electrode, cracked insulation, short circuits, etc.
An expert can inspect the sensors to identify rust, cracks, and other issues to prevent the flame sensor from shutting off the gas. Accordingly, they can apply a solution.
The problem can be fixed by repairing or replacing the faulty sensor. But don’t forget that the replacement of the sensor can be an expensive affair.
8) Blocked Condensate Pipe
The condensate pipes, which are a part of the boiler, can get frozen in cold weather, causing a blockage. They carry acidic water from the boiler to the sewer – and work with the flue pipes to release gases.
When frozen, the condensate pipe fails to allow the wastewater to escape. It will also affect the release of harmful gases from the boiler.
A frozen condensate pipe can be fixed by thawing the ice inside. This can be done by pouring warm water to help in loosening the blockage.
To enable the release of condensed gases, the pipe will have to be routed vertically. Once all of this is done, the pipe should be protected from freezing further using lagging.
9. Blocked Gas Meter
The cold weather can cause the regulator of your outdoor gas metre to freeze. And this will restrict the flow of gas to the boiler.
Thus, during winter, you may experience the L2 fault code due to a blocked gas metre. Until the regulator is thawed, you will continue to face issues turning the device on.
Clearing ice and snow out of the gas metre’s regulator vents can be helpful for maintaining free gas flow for unobstructed heating. It will also ensure that the regulator does not malfunction.
Experts will lag or box the meter to protect it from freezing again. And once the regulator thaws, your Ideal boiler will start working again without the L2 error.
What is the First Thing You Should Do When You See an L2 Code on the Ideal Logic Boiler?
If you get the L2 error code while trying to use the Ideal Logic, you’ll likely notice ignition failure and other signs like loud noises. In that case, you must start by resetting the unit. But if that fails to help you, you’ll need to investigate further and contact experts.
Here’s what you must do when you get the L2 code.
- Turn off the power source and turn it on again.
- Turn back the control dial to the “reset” setting.
- Check your credit on the gas metre – and top it up, if needed.
- Examine all gas-powered appliances to know if there’s a gas shortage.
- Make sure that the gas isolation valve is on and in working condition.
- See if you can hear gurgling noises besides ignition and heating issues.
- Contact an engineer to detect the problem and get expert solutions.
Which Problems Causing L2 Error Code Need An Engineer?
Sometimes, the L2 error goes away on its own or if you reset the device. But if neither of these helps and you fail to identify or solve the problem, contact an engineer. Problems like no heating, loud noises, and a frozen metre or pipes need an engineer.
An engineer can identify if the issue is with the unit itself – or if there’s some other issue, e.g., a faulty gas valve. Accordingly, they’ll clear out, repair, or replace components. They might also advise you to contact the power company if the problem is beyond their abilities.
Should You Replace the Ideal Logic Boiler if You See the L2 Error Code?
If you repeatedly face an L2 fault code in the Ideal Logic Boiler, replacing the unit with a new device might be a cost-effective choice. That’s because repairing or replacing parts of the unit can be quite expensive due to the price of the components and the labour cost.
Replacement is a better choice if your machine’s parts fail regularly and the unit is out of warranty. But a random occurrence of the L2 fault code doesn’t necessarily mean you need to replace the unit. Some elementary repairs or replacements might fix the issue.
Many reasons can cause an Ideal Logic L2 boiler fault code. Some can be fixed simply by resetting the device. And others need help from engineers or power companies.
Often, the only solution is to replace the whole unit. But no matter the issue, we strictly advise against trying to fix any major issue without consulting an expert first.