Vaillant eco tech pro F75 error
- Thread starter Zehroni
- Start date
Sponsored Links
Very common failure on dirty systems. Try adding a little pressure and press the reset button underneath the red light, this should kick back in. It relates to a sensor inside communicating with the pump, so could be either of those. If you get it back on after what I’ve suggested, then call a gas safe engineer who specialises in Vaillant to rectify. If you don’t get someone out, it will fail again.
Last edited:
Could be any of a number of issues - blocked pipes, blocked or broken pressure sensor, weak or failed pump, flat expansion vessel to name a few. Not DIY for any of them - the casing on these boilers forms the safety room seal, and should only be removed & refitted by a Gas Safe Registered Engineer
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
Sponsored Links
Similar threads
