Bosch PRO Akkupack GBA 18V 5.0Ah — Error codes & fixes
Troubleshooting guide for the Bosch PRO Akkupack GBA 18V 5.0Ah. Diagnose an error code and find the fix.
Chuck won't grip
chuck-issueThe chuck slips or won't tighten, often from wear or debris in the jaws.
Source: Bosch support — power tool troubleshooting
Confidence: 80%
Verified Aug 9, 2026
Trigger not working
trigger-not-workingThe power tool trigger does not respond, often due to a switch fault or debris.
Source: Bosch support — power tool troubleshooting
Confidence: 80%
Verified Aug 9, 2026
No suction (vacuum tool)
no-suctionThe vacuum tool has no suction, often due to a clogged filter or a full dust bag.
Source: Bosch support — power tool troubleshooting
Confidence: 80%
Verified Aug 9, 2026
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