Repair

Repairing a Dead Roborock S5/S6/S7/Q7/S8 Charging Dock

I had a defective original Roborock charging dock lying around, compatible with models including the S5, S6, S7, Q7 and S8. The dock appeared completely dead: there was 0 V at the charging contacts.

Since I had already bought a replacement dock, this was a good opportunity to open the old one and systematically find out what had failed.

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SodaStream Crystal 3.0 CY-CQC-001: How I Fixed Very Low CO₂ Flow

Model: SodaStream Crystal 3.0
Type: CY-CQC-001
Problem: Very weak CO₂ flow, even with a new cylinder
Cause: Blocked CO₂ restrictor
Fix: Clear the tiny restrictor opening

My SodaStream Crystal 3.0 suddenly produced almost no carbonation. I replaced the Quick Connect CO₂ cylinder twice, but the problem remained.

Another clue was that after releasing the carbonation button, a small amount of CO₂ continued to flow for several seconds.

The problem turned out to be a blocked tiny CO₂ passage inside the Quick Connect assembly.

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