On Mon, 16 Feb 2004 08:49:44 -0000, "Jerry."
wrote:
Should be very reliable though motor life varies dramatically with
temperature. Do you have unusually high ambient/flow temperatures or high
spec supply voltage?

Well it was installed in a loft, on the east aspect and the problems this
time started after a couple of (relatively) deep overnight frosts.... Hummm
!
With the proper frost protection?
...

SJW
A.C.S. Ltd.