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| + | [title] Remove toothbrush head and inspect board, battery, and motor |
|---|---|
| + | [* black] Inspect four pads with green circles (Picture #1), they should be fully covered in solder. |
| + | [* black] Picture #2 shows the center pad missing some solder and not making a good connection. |
| + | [* black] Picture #3 shows repaired solder pad. Test toothbrush battery and motor operation without toothbrush head. If toothbrush is now working, there may be no need to replace the battery - if battery is providing between 1.2 and 1.5 volts and motor is actuated by button presses, stop here and reassemble the toothbrush. |
| + | [* black] If battery voltage is less than 1.2 volts, consider testing motor operation and button presses with two tests; using a AA battery and a pair of wire leads touch one end of leads to battery ends and the other wire ends to: A) left board pads (to test motor leads) and then B) to right board pads (to test battery leads, center pin is positive). |
| + | [* black] If motor doesn't start after Step 2 troubleshooting, continue to Step 3. |
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