I've been asked to look at a CH system where the pump has got stuck.
I'm aware that I can close the taps either side of the pump and
replace it in-situ, but I'm wondering whether it might free up if I
give it a bit of welly?
Apparently the house has stood empty for several months since last
winter, and when the CH was fired up very recently the boiler did what
it is supposed to do (water got hot etc), but water wasn't being
pumped around the system.
Do these pumps seize up after a period of not being used? And is there
a handy method for getting them unstuck?
To be fair, it had the desired effect! I assume the tap was sufficient
to dislodge whatever was stopping the pump from spinning. More answers
will be forthcoming after next week's CH/DHW overhaul...
It is called percussive maintenance. It was even covered on my engineering
degree, which means I'm fully qualified to hit any malfunctioning device
with a hammer.
I remember doing IT for Oracle many moons ago. Whenever there was a power
cut, the hard drives in a particular model of Sun would rarely spin back up.
Standard procedure was to remove them from the machines and throw them
against the wall, or drop them from about 2 metres on the floor. They would
then be reinstated in the machines and never failed to spin up. No such much
as a bad sector.
On Fri, 12 Sep 2003 12:42:01 +0100, "Christian McArdle"
In the engineering department of the "snotty uni" I attended there was
a complete series of hammers lined up from the smallest rock hammer to
the largest sledge. The sign is said to have read along the lines of
"If at first you don't succeed, use a larger hammer"
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