In message , Dave Plowman
writes
In article ,
geoff wrote:
The worst offence which boiler pcb designers commit (IMHO) is the
direct switching of reactive loads (fans, gas valves etc) without the
use of any kind of snubber to reduce relay contact wear.

A diode costs what - less than 1p in bulk? Perhaps they want it to fail -
just out of warranty.

No, they couldn't possibly be doing that, could they ?
--
geoff