New boiler conversion (gravity to combi). Plumber left us with inconsistent rads, 24 hours later all 13 refuse to heat up above 30 degrees.
No issues with thermostat, and boiler is turning on/off as needed with that.
I took advice from an old post on here and shut off all the radiators and opened one up which got very hot, I then opened all the others simply by turning each rad valve 1/2 turn until it was hot then moved on to the next (bleeding along the way where needed). This worked fine for 1 day but the same issue occurred the next, all refusing to heat up. Another balance was done, this time opening each one up a little more than the previous one, and again fine for 1 day but now cold again and the boiler appears to constantly turning on/off every 10 mins trying to heat them up.
Installer seems to think this sounds like a blockage and has offered to reflush the system; but if that was true why would it heat up when I close them all down and re-open? Just trying to understand our options.
He can't come back until next Friday so is there anything else I can try in the meantime so we have a warm home?
DHW is fine.
No issues with thermostat, and boiler is turning on/off as needed with that.
I took advice from an old post on here and shut off all the radiators and opened one up which got very hot, I then opened all the others simply by turning each rad valve 1/2 turn until it was hot then moved on to the next (bleeding along the way where needed). This worked fine for 1 day but the same issue occurred the next, all refusing to heat up. Another balance was done, this time opening each one up a little more than the previous one, and again fine for 1 day but now cold again and the boiler appears to constantly turning on/off every 10 mins trying to heat them up.
Installer seems to think this sounds like a blockage and has offered to reflush the system; but if that was true why would it heat up when I close them all down and re-open? Just trying to understand our options.
He can't come back until next Friday so is there anything else I can try in the meantime so we have a warm home?
DHW is fine.