I'm having problems with my central heating and was wondering if
someone could tell me what they think has gone wrong.
The boiler was only fitted 3yrs ago by British Gas, and I'm a bit
annoyed that it is already causing problems (even more so, since I did
not take out British Gas insurance after the 1st year warranty).
The boiler is a Potterton Supreme. Basically, the water heats up,
upstairs is fine, but downstairs radiators do not work.
I've looked at the boiler, and underneath I can see two 'Valve
Actuators' - little blue boxes which attach around 2 pipes (I'm
assuming one is for lower floor, one for upper floor).
When both floors are set to heat, the top floor thermostat clicks when
I turn it, but the bottom floor thermostat does not.
When I manually set the top floor to heat I can see a little lever on
the side of the top valve actuator move, then moments later the boiler
springs to life.
When I do the same for the lower floor, the other valve actuator lever
does not move at all.
Can someone tell me whether they think the problem is with the lower
valve actuator or with the lower floor thermostat. I'm assuming one is
affecting the other, I'm assuming if the valve actuator doesn't work
it will stop the equivalent thermostat from clicking.
Sorry to sound so vague - I am not experienced with any of this.
If it is the valve actuator, does anyone have any idea how much
another one would cost? and how much British Gas would charge for
labour? Would it be cheaper to get a non British Gas engineer?
Thanks for any replies.