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Vaillant ecoTEC Plus F27 fault code

June 14, 2025

Vaillant ecoTEC Plus F27 fault code

Vaillant ecoTEC Plus Combination boiler with F27 fault code

This is a short clip of a broken first generation Vaillant ecoTEC Plus combination boiler with the F27 fault code.

The F27 fault code can affect any Vaillant ecoTEC Plus combination, system or heat-only boiler.

Most of the time the F27 fault code is going to be related to a faulty printed circuit board(PCB).

If you are experiencing the F27 fault code you may be able to reset your Vaillant boiler for some time, but eventually your boiler will probably stop working altogether and you won’t be able to reset it anymore.

Sometimes you may see the F27 fault code on its own, or alongside the F61 fault code, the F62 fault code, or sometimes even the F64 fault code.

Faults like an intermittent F27 fault code can often be misdiagnosed by heating engineers, who don’t have much experience working on Vaillant ecoTEC boilers.

This is why it is best to try get someone who has experience working on Vaillant ecoTEC boilers to fix your Vaillant boiler if it breaks.

We do have a more detailed page talking about the F27 fault code.

The benefits of using us to repair your Vaillant boiler.

Local engineers on time

You know that when you call us you’re going to get a local, experienced, Gas Safe registered heating engineer with over a decades worth of experience working on Vaillant ecoTEC boilers, who will turn up if they have promised to do so.

12 Month guarantee

To provide you with the best possible service and peace of mind, we always provide a minimum 12 month guarantee on any parts fitted to your Vaillant boiler or central heating system

What our customers say about us…

I’ve used Richard to service my boiler for several years. He is extremely professional, knowledgeable and thorough. The first time he looked at my boiler he fixed a problem that several other engineers had failed to fix, and even refunded me when a part he had bought turned out not to be needed. Real integrity and a desire to do the best for his customers. I don’t think you’ll find anyone better.

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Tim

I can’t recommend Richard highly enough. He came to fix our boiler at short notice, provided a comprehensive service and has given it a new lease of life. He had all the parts required so no delays in waiting for parts. He is extremely knowledgable and competent and clearly passionate about what he does. Thank you!

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Gareth

Need an urgent Vaillant boiler repair in Rotherham?

Thanks to our extensive professional experience working on Vaillant ecoTEC boilers, and all the Vaillant boiler spares we carry, most broken Vaillant boilers are repaired with just one visit – getting your Vaillant boiler up and running as soon as possible.
Aside from offering a great price on boiler repairs, we also offer a 12 month guarantee on all parts fitted to your Vaillant boiler or central heating system.

Schedule an Appointment

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07507712787

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Article by Rich

Rich is a Gas Safe registered heating industry professional that specialises in boiler repairs and maintenance on Vaillant boilers and some of their Glowworm derivatives. He has over 15 years worth of experience working in the heating industry, and well over a decades worth of experience working on Vaillant boilers.