Central Heating Pump

[judderi]

Ive not used my radiators for a couple of months now. I went to put them on the other day and it seems that my pump has seized. It spun for a few seconds then jammed. However the wire for the pump seems to disapear under the floorboads of the next room and i dont fancy pulling up the carpet and floor boards in there to find the pump. Would i be ok to add a new pump to the same pipe just below the boiler and wire it in using the existing wire?

Another idea i had was to reverse the positive and negative wires to the pump causing it to spin in reverse and possibly clearing the blockage. Then connect the wires back as normal. Do you think this is safe and will work?

 

[ChrisR]

None of the above.
You need to find the pump and replace it.

If your pump isn't running your boiler could boil and give you the problem you are descibing in the other post, except that it's boiler water going up and over and not hw cylinder water.

 

[judderi]

Hi. The other problem in my other post is only when running the hot water and not the rads. Anyway do you have any clues as to where the pump may be installed. i.e is it usually at ground level or could it even be up in the loft? Im guessing its near radiators. Will it be miles away from the boiler or as close as possible?

 

[Agile]

The pump can be anywhere but is USUALLY with a back boiler in a false chimney breast or under the floor close to th chimney breast.

Wit a flor mounted boiler it may be inside the boiler case.

When found it can be spun and possibly that may free it up!

Tony

 

[bster]

Hit it with a hammer! (someones gonna slate me for saying that..probably)

A modern boiler incorpartes a pump exercise feature which prevents pumps seizing in the summer, dont know if boilers can exercise external pumps though? not that this has any relevance to your post.