On Tue, 23 Sep 2014 16:55:29 +0100, Andy Burns
wrote:

John Rumm wrote:

there are two downstairs lighting circuits. Both had
all the lights off, yet between them they draw 400mA.

Perhaps I ought to
measure the leakage through the touch dimmers.

Surely you'd notice 96W warming up a few dimmer switches if it was
happening ?

+1

If there's any one thing drawing excess standby power, you'd expect
to see an abnormally elevated temperature in the case of compact items
such as wall warts and dimmer switches. It might be worth using a
cheap IR thermometer to sniff out the suspects.
--
J B Good