"Lurch" wrote in message
...
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?

Well it doesn't seem to have any type of frost stat if that is what you
mean.

Even more Ho Hummms...