Vaillant Boiler Fault Codes – Repairs & Diagnostics in Liverpool
At Response Boiler Repairs Liverpool, we specialise in identifying and repairing all Vaillant boiler fault codes, including F28, F29, F75, and more. If your Vaillant ecoTEC, ecoFIT, or older model is showing a fault code, our Gas Safe registered heating engineers can diagnose the issue quickly and safely.
We provide fast response times across Liverpool, and all repairs are completed using the correct diagnostic tools and test equipment — ensuring accurate results and long-lasting fixes.
Common Vaillant Boiler Fault Codes We Repair
Some of the most common Vaillant boiler error codes include:
- F28 – Ignition fault / gas supply issue
- F29 – Flame failure
- F75 – Pump or pressure sensor fault
- F22 – Low water pressure
- F62 – Gas valve malfunction
Whether your boiler is losing pressure, not igniting, or locking out completely, we can help.
Local Vaillant Boiler Engineers in Liverpool
We are a local, family-run company with over 20+ years of experience repairing Vaillant boilers throughout Liverpool.
Rated 4.9★ on Google and reviewed on Trustpilot, we take pride in clean, reliable workmanship with a 6-month repair warranty.
Our engineer attends with full diagnostic equipment, multimeters, gas testing tools, and genuine Vaillant-compatible parts where available.
Book a Vaillant Fault Code Repair Today
If your boiler is displaying a code like F28 or F75, avoid repeated resets — this can cause further internal damage.
Call: 07856 297070
🌐 Visit our Google Business Profile to book a trusted local engineer today.
Vaillant Boiler Fault Codes (Liverpool Repairs)
F.75 – Pump or pressure issue – our engineers will quickly restore hot water and heating.
F.62 – Gas valve error – we’ll investigate and repair safely.
F.28 – Ignition lockout – call our Gas Safe engineers to diagnose and repair.
F.29 – Failed ignition sequence – professional inspection required.
F.61 – Control fault – contact us for fast, safe repair.
F.83 – Water sensor error – we’ll check and repair to restore heating.
F.64 – Electronic fault – call our team for reliable repair.
F.72 – Temperature difference issue – our engineers will carry out full checks.
F.92 – Flame detection issue – let us make sure it’s safe to use.
F.67 – Ignition system fault – professional repair required.
Common Questions About Vaillant Boiler Faults
What is the F22 fault on a Vaillant boiler?
The F22 code indicates low water pressure. Check your system pressure gauge and call a Gas Safe engineer if unsure.
Why does my Vaillant boiler keep showing F75?
F75 means the pump or pressure sensor has not detected a pressure change. Our experienced engineers can diagnose and repair this issue safely.
Can you repair a Vaillant boiler with no hot water or display?
Yes. We have the correct tools and experience to fault-find boilers with no display or no hot water.
How do I arrange a Vaillant boiler repair in Liverpool?
Call 07856 297070 to speak directly to a local on-call engineer. We provide fast, reliable repairs and diagnostics.
