Users' questions

How do I fix the F22 on my Vaillant boiler?

How do I fix the F22 on my Vaillant boiler?

How Is The Vaillant Boiler F22 Fault Fixed?

  1. Switch off the boiler.
  2. Wait for the boiler to cool.
  3. Locate the filling loop – this is usually under the boiler.
  4. Turn the valves.
  5. Keep watching the pressure gauge.
  6. When the needle gets to the 1.5 bar mark, return the valves to their original position.

How do I fix the fault on my F83 Vaillant boiler?

Do I Need to Reset My Vaillant Boiler After An F83? A Gas Safe Engineer will reset your boiler for you after resolving the issue. If you repressurise the boiler yourself and bleed the system, then you can reset the boiler to see if this has resolved the issue.

Why does my boiler say F 28?

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.

Can a boiler lose pressure without a leak?

Boilers That Lose Pressure When The Heating Is On When you switch on your heating pipes, fittings and radiators expand, and boiler pressure increases. So, a heating system might not leak when it’s off, but, a boiler could lose pressure when it’s on.

Why do I keep losing pressure in my boiler?

A boiler that keeps losing pressure is therefore always cause for concern. There are two main problems that typically cause a loss of pressure – water escaping somewhere in the system or a failure of the expansion valve and resulting damage to the pressure relief valve.

What does F61 mean on my Vaillant boiler?

gas valve
What Does The Vaillant F61 Error Code Mean? If you have a Vaillant boiler that is displaying an F61 fault code, this means that there is a fault with the gas valve. When you see the F61 fault code, it means that your boiler is locked out to keep you safe.

What does F72 mean on a boiler?

NTC thermistor
The F72 fault code shows when there is a fault with the flow and/ore return NTC thermistor. It means that the thermistors are providing incorrect readings and that the difference between the two thermistors is consistently too great, causing the boiler to shut off.

What does F29 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 should the pressure be on a Vaillant boiler?

between 1 and 1.5 bars
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.

Do I need to press the reset button on my boiler?

Often, a boiler can be returned to normal working order by resetting it. This is done by pressing the button or turning one of the thermostats to reset for 3 seconds before turning the stat back up. If your heating isn’t coming on and you’ve checked the power supply and pressure you may need to reset the boiler.