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Rack Air Removal Unit internal comm error and data mismatch error

APC UPS Data Center & Enterprise Solutions Forum

Schneider Electric support forum for our Data Center and Business Power UPS, UPS Accessories, Software, Services, and associated commercial products designed to share knowledge, installation, and configuration.

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Rack Air Removal Unit internal comm error and data mismatch error

This question was originally posted by Tyler on APC forums on 10/5/2020

as the title says im getting those two errors happened a bit ago everything worked fine now it runs the fans but i have no control of them. ive upgraded and downgraded firmware multiple times. have power cycled it. any ideas or is it dead hardware?