Ravenheat Boiler

[haydenrich]

Please help ! My Ravenheat boiler keeps letting off steam from the pressure valve on the top of the boiler only when HW & CH are calling together. If I run HW on its own the pressure valve is OK but I only get warm water.Its almost as if there is a air lock in the boiler.
Please help

 

[Agile]

I canot immagine any fault that would cause that!

However, if you were to admit which particular model you have then it might help my immagination!

Tony

 

[weareleeds]

It is not a pressure valve but an auto air vent. Is the pump running if so you may have circulation problems

 

[gas4you]

Definately need to know exact model.

 

[bengasman]

If there is steam coming from the boiler, you should turn it off at the spur. No doubt there are ravenheats that are installed correctly by a proper rgi, but I have yet to find the first one, in other words: do not use it in any way until you know it is safe to do so.