Dave Liquorice wrote:

Which may become a bad fuse if there is an overload in that circuit,
same for a nw fuse of course. Is the OP checking the fuses visually?
It is sometimes not visually obvious that a fuse has blown, it needs
an electrical test really.

When I had a intermittent earth fault in my car wiring, I
produced a very useful test lead. I took an old headlamp bulb
(well, the main beam filament is still OK, how could I throw it
away?) and soldered on a pair of leads with crock clips. In place
of the fuse which kept blowing I then connected this assembly.
Whilst all was well on the load side, the circuits worked as
normal, the bulb filament was still cold. When the faulty cable
touched earthed metal, the bulb glowed brightly, but there was no
dangerous overcurrent.

NB do this carefully, as the circuit is no longer protected.

Chris
--
Chris J Dixon Nottingham UK


Plant amazing Acers.