A100 Fault Workflow Router

This router gives the fastest document order for the highest-value A100 complaints.

Complaint Routing

Incoming complaint	Open first	Then open	Then open if the complaint remains	Why this order works
machine is dead but there may still be upstream DC	A100 measurement card	A100 board opening map	A100 guide	the dead-machine split belongs in rectifier and low-voltage proof first
no output or no OCV with otherwise healthy power	A100 measurement card	A100 board opening map	A100 job packet	once the current path is proven, the route shifts cleanly into the output branch
blinking power light or fan-related collapse	A100 measurement card	A100 board opening map	A100 guide	support-power and fan evidence come before random board replacement
weak arc changes with clamp or outlet quality	A100 parts substitution card	A100 guide	A100 job packet	current-path and utility-path complaints still belong outside the machine first
arc feels wrong after lead service or rod change	A100 parts substitution card	A100 measurement card	A100 guide	polarity, rod baseline, and current-path proof still beat internal teardown

Official Parts Exit Paths

If the complaint proves external at any point in the router, use the official parts flow instead of continuing into board work.
A100 accessories path: official A100 accessories path
Stock holder KAA20010: official product page
Heavy-duty holder 07000460: official product page
Heavy-duty clamp 07000461: official product page

Stop Rules

Stop if a better clamp or stronger outlet changes the complaint.
Stop if correct polarity and dry 3/32 in 7018 or 6010/6011 proof rod remove the complaint.
Stop if the machine is being routed as TIG, because A100 is officially stick-only.
Stop if blinking-light or fan behavior clearly points to the support branch.
Stop and move to the full guide if utility, support, and output evidence still overlap after the first pass.

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