Over-filled Vaillant combi boiler

Postby mblago » Tue Apr 08, 2008 6:08 pm

I've accidently over-filled my vaillant EcoTec28 Pro combi boiler via my filling loop, can one of you experts advise me how I relieve the pressure please?
Posts: 26
Joined: Mon Feb 18, 2008 6:57 am


Simply Build It

Postby bazza » Wed Apr 09, 2008 9:46 am

hi mblago you cud reduce the pressure by the prv valve if you feel confident enough or you can simply open a bleed vent on one of the radiators and catch the water into a container and close the bleed valve wen the pressure is at the correct reading which is normally between 1-1.5 bar hope this helps bazza
Posts: 169
Joined: Mon May 14, 2007 4:40 pm

Postby htg engineer » Wed Apr 09, 2008 10:54 am

easiest way is to manually open the pressure relief valve - but you take the risk that if it doesn't re-seat correctly you may need to strip out and clean or replace.

Vent radiators ? if theres any air in this will be replaced with water.

Drain from a drain off either near the boiler or on the radiator valves.
htg engineer
Posts: 3219
Joined: Tue May 22, 2007 5:22 pm

Postby mblago » Wed Apr 09, 2008 3:25 pm

Thanks for your reply guys, but can you tell me how I would recognise the PRV please?
Posts: 26
Joined: Mon Feb 18, 2008 6:57 am

Display posts from previous
Sort by
Order by


  • Related Topics