[Dave Samson]

Hi Jim,

The mystery is solved:

I extracted one fuse after the other and watched the ammeter:

Thermal switch sensor for electric water pump and 2ndary push fan activated without ignition draws 140 mA.
Alarm (even when not activated) draws 20 mA.
Old Smiths pendulm type clock draws 10mA.

I'll have to live with that....