Why is my boiler showing F28?

Why is my boiler showing F28?

The F28 code is displayed when your boiler fails three ignition attempts, resulting in the boiler halting operation and turning off. Vaillant officially defines the F28 error code as an ignition fault. Therefore, the causes of the F28 fault can be broadly categorised into either an ignition fault or a gas valve fault.

What does F 29 mean on my boiler?

What Does The F29 Error Code Mean? In simple terms, this error code means that the flame inside the boiler which is required to warm the water for the hot water tap or central heating, isn’t lighting up. Until the cause of the fault is found and repaired, the home will have no hot water or heating.

What does F 22 mean on boiler?

low water pressure
The Vaillant F. 22 error code is a sign that your boiler has low water pressure. To rectify the problem and to get your boiler functioning normally again, you’ll need to increase the water pressure back to the right level. Vaillant boilers can only work when they have the right water pressure.

Where is the reset button on my Vaillant boiler?

Your Vaillant boiler reset button is located on the boiler’s display, near where the fault code will appear. The reset button features a flame with a line through it – this is also the ignition button.

Why is my Vaillant boiler not igniting?

There are many reasons why a Vaillant boiler might fail to ignite: No gas supply: Test other gas appliances around your property to see if they’re working. A frozen condensate pipe: The condensate pipe leads acidic waste water away from the boiler, outside and down a drain.

What should the water pressure be on a Vaillant boiler?

Boiler pressure should generally be between 1 and 1.5 bars when central heating is turned off. The needle of the pressure gauge should remain above the lower limit set by your boiler manufacturer at all times.

Why is my Vaillant boiler showing an F28 fault code?

Could a faulty gas valve be causing the F28 fault code to be displayed. Gas valves supply the boiler with gas. So, any issue with the gas valve that is restricting the flow of gas could lead to the F28 error being displayed on your Vaillant.

Which is the most common fault in a Vaillant boiler?

Common Fault 4: Code F28 (Vaillant Turbomax) This fault, particularly common for the Vaillant Turbomax, is caused by a faulty ignition, or no gas getting to the boiler. The Fix: Firstly, check the condition of the ignition leads – is a spark being generated? If not, you should replace the ignition leads as this may fix the problem.

What causes a fault in a Vaillant turbomax?

This fault, particularly common for the Vaillant Turbomax, is caused by a faulty ignition, or no gas getting to the boiler. The Fix: Firstly, check the condition of the ignition leads – is a spark being generated? If not, you should replace the ignition leads as this may fix the problem.

What to do if your Vaillant boiler has no gas?

If you attempted to fire your boiler with no gas, it will need to reset. Some Vaillant boilers have an ignition button on the display panel. Pressing this will cause the boiler to attempt an ignition. Otherwise, consult your manual for details on how to reset your specific boiler.