Ive been having some problems with my central heating, the engineer removed the thermostat but im not sure if he was right to do that -he seems to be one of the dodgy builder types.PS it didnt fix the heating prob though, just made it worse.
ok, old back boiler doesn't really say much. the thermostat is a device, usually on a wall, that turns the boiler on when the temperature drops below it's setpoint. without one, the boiler won't go on at all. so yes, it is needed. but even a dodgy builder knows this, so it might be something else he removed. so more info is needed to really help you.
You could have a blockage but power flushing is fairly expensive and may not solve the problem, when the boiler was repaired they should have put inhibitor into the system to prevent blocking/corrosion, this should be done roughly once a year. It sounds as though you could have an air lock, try shutting off the rads leaving the one nearest the boiler open, when it gets hot move onto the next one, repeat until all the rads are hot, vent the rads as any air should've been pushed up to the highest point, then they need balancing, you really should call British gas if the work on the boiler was recent as after paying out all that money you shouldn't have any problems at all.
