Plot_Vendor wrote: »
something had caused the solar MCB (shouldn't that be an SCB - secondary circuit board?)
EricMears wrote: »
I really only meant it as a throwaway line but pleased to hear that it really can be done (but I shan't be joining that club !).
On the more general grammatical point, there really isn't a hard & fast rule about when agent nouns end in -er or -or.
A promoter is human but a motor non-human - which might support the KernelSanders theory. However :-
A driver is a human who drives a car but a screwdriver is a (non-human) tool.
Professors & professers are both human.
A chancellor is human, so is a chancer.
Whether talking about the support for a drawer or someone who runs, runner always ends in -er. And of course a drawer of water (or pictures) is human and a drawer to keep your socks in insn't.
etc. etc. . .
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