Recent content by jbee1

Yes sorry what I meant there is no zone valves. Taking the stat was suggested to boil an airlock for a few minutes - the boiler can be triggered by the CH setting and then turned off after a few minutes. Then the boiler continued to run and the flow and return pipes got hot. Once they cooled...

There are no zone valves on this system. I have a gate valve near the CH pump which I closed and did the following..... 1) Took stat out of boiler and tried to boil the airlock. 2) I forced a mains water hose through the vent in the F&E tank. 3) I forced a mains water hose through the feed in...

It is an old system, I have checked the valves - nothing is closed. I have kept the HW only setting on all day today and noticed that the boiler does fire up every 3 hours or so but then switches off after about a minute even though boiler stat is set to very high position. I will get a...

I have an open vented gravity system with no zone valves and a pump for Central Heating side only. There are 2 tanks in loft, one is a cold water tank and the other a feed and expansion tank. Each of them have a vent pipe. The boiler fires up when I switch on CH setting, but hot water cylinder...