trigger-not-working Troubleshooting

Trigger not working on the Bosch PRO Bohrhammer GBH 2-21

Source: Bosch support — power tool troubleshooting Confidence: 80% Verified Aug 9, 2026

The power tool trigger does not respond, often due to a switch fault or debris.

How to fix Trigger not working

Clean the trigger

Clean the trigger area to remove debris.

Source: Bosch support — power tool troubleshooting Confidence: 80% Verified Aug 9, 2026

Difficulty: ★ Est. 5 min

Replace the switch

If the switch is faulty, replace it with a genuine part.

Source: Bosch support — power tool troubleshooting Confidence: 80% Verified Aug 9, 2026

Difficulty: ★★★ Est. 30 min

Replacement parts for the Bosch PRO Bohrhammer GBH 2-21

Bosch PRO Bohrhammer GBH 2-21 Replacement Battery Bosch PRO Bohrhammer GBH 2-21 Charger Bosch PRO Bohrhammer GBH 2-21 Carbon Brushes Bosch PRO Bohrhammer GBH 2-21 Chuck Bosch PRO Bohrhammer GBH 2-21 Gearbox Assembly Bosch PRO Bohrhammer GBH 2-21 Tool Case

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