Just to say a big thank you to this forum. The PRV on my boiler was dripping and the boiler pressure would rise to 3 bar when the heating was on. I searched through the forum and discovered that my expansion vessel may also be the problem.
The expansion vessel was pumped back up to the correct pressure (after draining down the system) and fresh inhibitor added. The pressure on the system is now spot on and rises from 1 bar at cold to a maximum of 1.8 bar when the heating is turned on.
Also the PRV has stopped dripping!!
Keep up the excellent work- I managed to save some money by not buying a new PRV (which costs around £70 because it includes part of the manifold also) and also managed to wire up a new wireless drayton thermostat by researching the previous posts.
The expansion vessel was pumped back up to the correct pressure (after draining down the system) and fresh inhibitor added. The pressure on the system is now spot on and rises from 1 bar at cold to a maximum of 1.8 bar when the heating is turned on.
Also the PRV has stopped dripping!!
Keep up the excellent work- I managed to save some money by not buying a new PRV (which costs around £70 because it includes part of the manifold also) and also managed to wire up a new wireless drayton thermostat by researching the previous posts.