I think I must have an air lock in my central heating system, it
consists of a wall mounted boiler, cold water tank and header tank in
the loft, the water pump is in the airing cupboard next to the hot
water tank, the pump straed making a noise and the radiators were only
getting warm at the bottom, I tried to bleed them without any luck so
i removed the pump which is only 2 years old, it was completley dry
inside. Any idea's how to remove the air lock?
Check the small fill/expansion tank in the attic. Make sure that the ball
valve is working. It may have stuck, and all the water evaporated and not
been replaced. If there is a tap or gate valve in the feed pipe from the
fill-expansion tank to the system, make sure that it is turned on!
On Sun, 25 Jan 2004 21:12:43 +0000, Set Square wrote:
If the pump has not been written off by being run dry....
To get the air out of the [new 8-(] pump undo the chromed disc or black plastic
on the end of the pump motor body which should let out air and a few
dribbles of water.
Ed Sirett - Property maintainer and registered gas fitter.
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