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How do I fix my heat flow downstairs?

I use gas central heating in my house and my top radiators works fine, but my bottom radiators does not heat up. What do I do to fix my bottom radiators to heat up?

Sol
February 2010
Heating, Home Heating SystemsHeating Radiators Central
its your pump it may be stuck and can be freed or needs replacing, wiyhout doubt the pump though

john
February 2010
Could be your upstairs are working on gravity... check your pump.

Henry
February 2010
If you have zoned heating its probably a faulty motorized valve on the down stairs circuit. It'll need to be changed. Actuators burn out in them.

Cozzie
February 2010

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Bottom Radiators Cold? - Fix Your Heating