boss therm and new boiler fitted in april all well until last week red light on, radiators hot ,.water temp on boiler rising,terrified i switched boiler off plumber came reset and o.k but amber light flashes occasionally when heating is off is this o.k?

dilly, September 2012

boiler will still be under warranty
call your plumber back & ask them to check/explain function of amber light to you

Q, September 2012