"David Mitchell" wrote in
:

This morning between 0830 and 0910 it recorded 14.2mm rain with a
rainfall rate of 365.8!!!
I was stood beside it for part of the time and there was no obvious
reason for it.
Everything else appears to be correct - any ideas anyone??


I had a problem like this with mine and it turned out to be a defective ISS
board. Mine somehow had gotten damp I think, because there were two places
on the board which had black corrosion seeping into the edge of the board.
Fortunately mine was under warranty. If yours is not the reed switch or
wild life then check the ISS board for signs of corrosion. Worth making
sure that the ISS board cover is properly seated with no gaps in the seal
and that both screws are done up tight.

Stuart