Range Cooker element switching question

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YorkshireDave

Joined Jun 12, 2016
59
This is the cntrl cct for our cooker. We go through selector switches & timers a plenty so I was wondering...
Can some explain to me just why both live AND neutral are switched on both the timer & the function switch?
It is ALWAYS the neutral contacts that burns out so I was considering just hard wiring the neutral & then using the function switch to switch higher rated single pole relays for the elements & fans.
Prob I'd solder all connections too as crimps seem to also burn out no matter how well I crimp.
Thoughts?
 

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