Hi all ,, again!
Earlier today i had to turn my boiler off at the FCU as the tank was really clanking and thudding (started suddenly )(I think its the sound that you get when there is air in the system). I heard this once before, and once a bleed screw was opened to release lots of air it was fine.
I opened that same screw just after the noise and only water came out.
Any way I realised that the rads were realy hot and turned the knob right down on the boiler (potentiometer) and turned the FCU to on again.
The boiler never fired up as i had turned it down but lights came on (cant remember which ones)
that was 2 hours ago,, now no lights are on whether I turn potetiometer up or down, bolier wont fire up and there is a distict lack of life.
when i turn FCU on, the timer operates and i hear a fan humming from within the boiler casing?? but thats the only sign of life.
The noise was alarming and it seemed that the pipes were shuddering with the force.
In January I changed the Fan and the Pump as both died within a day or so of eachother. the system has been fine since then up untill now.
Any guidance appreciated.
Andy