Acquity Sample Manager Wash Block Question

Troubleshooting carryover on an Acquity UPLC Sample Manager.

I think I isolated the issue to the wash station and/or puncture needle. I took the wash station out and removed all 3 of those block components that are screwed down and sonicated to clean the block and all the components of the wash station.

I am wondering if that was a mistake to have removed the component that has the cartridge installed in it, is this a big deal to have removed that piece and sonicated? Is that a factory calibrated piece, wondering if this was a mistake or not? If anyone knows if this is a big deal or not please tell me.
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