not-turning-on Troubleshooting

Toothbrush won't turn on on the Oral-B iO Series 9

Source: YouTube — repair & troubleshooting videos Confidence: 60% Verified Aug 9, 2026

The electric toothbrush does not turn on, often due to a dead battery.

How to fix Toothbrush won't turn on

Charge the toothbrush

Place the toothbrush on the charger and allow it to charge.

Source: YouTube — repair & troubleshooting videos Confidence: 60% Verified Aug 9, 2026

Difficulty: ★ Est. 2 hours

Parts needed: Oral-B iO9 Charger

Replace the battery

Replace the battery if it no longer holds a charge.

Source: YouTube — repair & troubleshooting videos Confidence: 60% Verified Aug 9, 2026

Difficulty: ★★ Est. 20 min

Parts needed: Oral-B iO9 Replacement Battery

Replacement parts for the Oral-B iO Series 9

Oral-B iO Series 9 Soft Brush Head Oral-B iO Series 9 Charging Base Oral-B iO9 Brush Head Oral-B iO9 Replacement Battery Oral-B iO9 Travel Case Oral-B iO9 Charger

← All Oral-B iO Series 9 error codes

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