How to fix F75 fault code and reset Vaillant boiler

Are you seeing an F75 fault code in your Vaillant boiler?

In this video Tony Hernandez of Advanced Heating & Plumbing explains what to do when your Vaillant boiler stops working and is showing an F75 fault code.

F75 fault code is usually an indication that there's inadequate pressure in your boiler. The system should start working again when you repressurise and reset the boiler, so watch the video to see how that's done.

We cover London, Hertfordshire and Middlesex

[makeupbitch]

Woke up on 22nd December to no heating and no hot water 😫 searched everywhere online and the F75 fault meant a pump problem, someone needed to come and fix it, no one can get here before Christmas‼️
Then I found your video ♥️ I now have heating and hot water. Thank you so much!!!! You have saved Christmas for my whole family 😇 THANK YOU

[noecarrier]

Legend, mate. Saved my life on the coldest night of the year. I owe you a pint.

[thecrawsjaw]

4years in and still a big help cheers lad👍

[lizbeflawrence]

Thank you for this video, its 4am on 22nd of December and my home was getting chilly and decided to check the boiler - used to a F22, but found it was F75 and searched on line. You have literally saved me 3 days of illness as I cannot cope with cold conditions, ie anything under 20 degrees. Thank you so much. 👍

[designwonderland]

After a crap day the last thing I needed was a broken boiler, this just resolved it and I’m over the moon! Thankyou!

[jakkimacneill]

Just watched your video...fantastic help.
My system is running again...
Our house has covid and no-one would com out to fix th the boiler.
Thank you so much.

[mahamedfarah]

I would like to thank you for helping me fix my boiler. It’s a Saturday and upon working up I realize the boiler’s red light is on and the water is not getting hot.
I panicked and went online to see what the F.75 was.

I came across your clip and fellow the instructions safe to say it worked first time so THANK YOU SIR

[Mark-tbnn]

Just had this F.75 code. My pressure was low. Thank you for the fantastic advice. Followed the Video and all sorted now

[jasonminton]

Thanks for the advice, despite Internet saying I need an engineer out, 5 minutes following your advice heatings back on.

[kburns]

Thanks so much for posting this video. Vaillant codes can be a bit daunting to the uninitiated, so it was great to find there was a very simple solution to my problem. I'd have been really cross if I'd had to call out an engineer for something so straightforward!

[Nicci]

I have an Echotech plus that has been doing the F.75 thing and going down to zero pressure a lot after being off all spring and summer. Different boiler, but these tips worked and I have hot water again. Thank you, you're a gent.

[fredhibbett]

So helpful. Woke up on a Sunday morning to no heating and the F75 code. We had visitors coming and this video was so helpful and easy to follow. We sorted the water pressure issue as described and bled the radiators. Thank you so much.

[ditsypixie]

GOD BLESS YOU MY GOOD MAN!
Living on my own for the first time and this has helped so much!

[darwindarwin]

Like others, i had an F75 issue and finally decided to address it this morning. A simple reset was all that was needed. A huge thanks. A diamond

[emmah]

Thank you so much. I bled my radiators and then got this error due to the water pressure dropping. This video helped me fix it. 🎉

[simonlai]

Thanks a lot. Save my parents without heat and hot water in these chilly days.

[aaronbok]

Boiler stopped working this evening F75? Thankfully I found your video. All fixed now and I am looking forward to a warm Christmas. Thankyou for taking the time to upload this helpful video. A Merry Christmas to you sir.😀

[ishtiaqrazamushtaq]

Genius move mate. Thanks a million. Saved me about 100 quid in call out fees. Just needed to reset it with putting the water back in.
Happened because the water mains was switched off.

[lavyyn]

You are a saviour..fixed my boiler with your instructions. Thank you 😊

[robertdingley]

I've needed this video in two separate winters to fix my boiler. Thank you.