The message >
from Tony > contains these words:

> Still I would be more inclined to check the relays first.

If you pull the switch plug first it'll tell you whether the relays are
stuck or not.

If you pull the relays first it won't tell you whether they or the
switch were stuck 'cos the fan'll go off anyway.

--
Skipweasel.
Ivor Cutler - "Never knowingly understood."