I assume the tower has an issue either with an internal sensor or with the actual motor that cleans (sucks empty) the Roomba’s canister. Did you check for any stuck debris or cleaned the tower’s internals? [br]
[link|https://www.sevarg.net/2019/12/22/roomba-i7-clean-base-teardown/|Here|new_window=true] you can find a written teardown of a tower base. [br]
And [link|https://www.youtube.com/watch?v=yGuflGR939g|this|new_window=true] is a video of someone taking a Roomba ADE-N1 tower base apart.[br]
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Please share if you find anything to solve the issue, Thanks.