Ideal Boiler L2 Fault Code, Causes & How to Fix It
What does a L2 Fault Code mean?
The L2 error code on an Ideal boiler signifies that the boiler has attempted to ignite but failed to maintain it. What could be the causes?
- The Gas Supply: Faulty gas valve not functioning correctly can cause an L2 fault, this means the gas valve isnt opening correctly or enough to sustain burner pressure. Usually a issue with the solenoid section of the valve, A professional will be required to replace a fulaty gas valve.
- Blocked or frozen condensate pipe: Blockages will affect the boiler firing up. Condensate traps can become blocked from lack of servicing or if the weather is below zero an external condensate pipe may freeze causing water to back upto the boiler resulting in an L2 Fault.
- Ignition and Spark Generator: Damaged electrodes or a faulty spark generator can cause weak spark which isnt enough for the boiler to fire. A gas safe engineer will be required to replace any faulty components inside the boiler.
- PCB issue: the PCB is the main electronics of the boiler, sometimes these become faulty and will need replacing.
What Can I do To Fix An L2 Fault?
The L2 error code is common you may be able to rectify trying these tips below:
- Check the homes Gas Supply: To make sure your home gas supply is working check other gas appliances are working. If you are getting no gas to other appliances then there is a supply issue, we recommend checking your gas meter or contacting your energy supplier to investigate.
- Inspect the Boiler: Look for an water on or around the boiler, leaks on the boiler can cause isses which my result in L2 fault. If you do see a leak then seek professional assistance to investigate.
- Reset the appliance: Sometimes a simple reset can cure the problem, you can reset the boiler by isolating the power off and on. On some models you will have to turn the dial and hold for a short amount of time to reset.
- What to do if the problem persists: If the you regularly experience issues with L2 or any fault seek professional advice. You may need one or more parts to be replaced, this will have to be done by a qualified gas engineer.
Boiler Servicing Can Reduce Boiler Faults
Having your boiler serviced annually can reduce boiler issues, having components clean and tested will reduce problems occuring in the future. Cleaning filters, condensate traps, main heat exchanger regularly will keep your boiler free flowing. A service will also test your boiler is working correctly and safely.
Do I Need A New Boiler?
Replacing your boiler may be an option for you, this would remove the L2 fault completely. Not only that but you would be enjoying a new boiler with problem free heating and hot water. We offer new boilers from £2000.00 Inc Vat supplied and fitted,



