Vaillant F22 Fault Code Low Pressure

What is the F22 Error on Vaillant Combi Boilers

we will look into the causes behind the Vaillant F22 Fault Code error and explore potential solutions to resolve it.

Vaillant F22 Fault Code error

The F22 error on an Vaillant Combi boiler indicates a fault in the sealed system pressure reading on the boiler. It typically occurs when the water pressure reading within the boiler drop below Approximately 0.7 bar.

you are able to view how much pressure have by looking at the pressure gauge located generally on the front of the boiler The 22 Error can prevent your boiler from firing up to produce hot water and central heating.

Topping your Vaillant boiler with the filling normally resolve the issue

Possible Causes of the Repeated F22 fault error code and how to fix it

Why Does The Vaillant boiler F22 Error Keep Happening?

Periodically over time due to the heating and cooling over time the water will evaporate away out the microscpic joints in your central heating system.

The time this takes varies from each central heating system but,

I have found from experience it happens more often on systems with plastic pipe.

Saying this though you shouldnt really have to be doing more often than once or twice a year. Although I have known some centralheating to have not needed topping up in over 4/5 years it really does vary from system to system.

Other Common Causes Of The Vaillant F22 Fault Code Error

  • A Cracked heat Exchanger inside the boiler.

  • A Faulty expansion vessel within the boiler.

  • A faulty pressure relief valve withiin the boiler.

  • a leak within the boiler on another component.

  • Leaking pipework on your central heating system.

  • A leaking Radiator.

  • A leaking Radiator Valve.

All these faults above will cause your Vaillant Boiler and central heating system to lose water pressureiver time causing the F22 error.

Fixing the Vaillant F22 Code Error

The first thing would be to check your pipework, radiators and radiator valves.

If you cant find a leak on your central heating system then you should contact a gas safe registered engineer to investigate the problem to get it resolved in speedy fashion.

They can diagnose diagnose the specific cause of the error and take appropriate measures to rectify the issue The solution may involve replacing faulty components.

How do I get this fault Fixed.

You will need the service of a registered Gas safe Engineer

so why not give Bradford Boiler installation company a call on 01274 317169

fill out your details by clicking here on our contact us page.

We can visit and Diagnose what the issue is and offer a speedy repair.

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