circuit card in boiler failed due to water ingress down back of boiler (baxi) which had apparently come from air intake side of flue. Plumber replaced card ok but could not explain why water had got down. Flue checked out ok. Boiler is upstairs and flue runs vertical through roof from boiler...
noticed that boiler (baxi solo 3 pfl 70) over the past couple of nights has been making a vibrating noise now and again. this morning I went to switch on and noise appeared again. boiler is in attic. went up to discover that boiler ignites, seems to vibrate a little and switches off then ignites...
time clock opens valves which then switch power to switched live of boiler. permanent live comes straight from spur unit which also powers time clock. these four conductors (switched live, permanent live, earth and neutral) all connect into pcb. pump connections live, neutral and earth also...
after dropping power to boiler all is ok when power is switched back on. if relay on pcb was faulty surely pump would start up again on its own.
definitely not zone valves pump is controlled through pcb which is controlled by valves which also bring on boiler
there are 4 connections going to...
I have just had my boiler moved to another part of the house. I noticed last week that pump was running but heating controls were off. To switch pump off I had to switch the electric supply to boiler off. Bought a new pcb and fitted it and seemed all ok. Noticed recently that fault has returned...
I am thinking of getting cavity wall insulation put in my brick built (1961) detached villa. Have been informed from friends that it causes dampness due to lack of air in cavity. Is this true?
Tried dry scraping etc. but the plasterboard is getting damaged. Someone at my work suggested covering ceiling with pva as this might hold paint together. Will give it a go. Thanks for info.