SwitchBot Curtain 3 Motor Not Moving or Very Slow

Problem Description

Your SwitchBot Curtain 3 motor is either not moving at all, or it moves extremely slowly and struggles to pull the curtain. The device may make a straining noise, or it may be completely silent when it should be operating. This can make your automated curtain schedules unreliable or completely non-functional.

Why This Happens in Real Homes

Your SwitchBot Curtain 3 motor is either not moving at all, or it moves extremely slowly and struggles to pull the curtain. The device may make a straining noise, or it may be completely silent when it should be operating. This can make your automated curtain.. In real usage this appears as Motor makes no sound or movement when commanded, Motor strains and moves the curtain very slowly, and Curtain moves partway then stops

The pattern in this case points to Battery is depleted and needs USB-C charging, Curtain track is dirty or has too much friction, and The motor is not properly calibrated to the track length. The repair usually holds when done in order: Check and Charge the Battery, then Clean the Curtain Track, then Recalibrate the Device. After applying the fix, validate behavior with repeated command tests and at least one full automation cycle to confirm stability.

Symptoms

• Motor makes no sound or movement when commanded
• Motor strains and moves the curtain very slowly
• Curtain moves partway then stops
• Device shows low battery despite being on solar panel
• Calibration fails repeatedly
• The SwitchBot app shows the device is connected

Recognize these? Here's what usually causes it.

Common Causes

• Battery is depleted and needs USB-C charging
• Curtain track is dirty or has too much friction
• The motor is not properly calibrated to the track length
• The curtain fabric is too heavy for the motor
• Solar panel is not receiving enough direct sunlight
• Motor gears are worn or damaged

Tools & Requirements

Step-by-Step Solution

1

Check and Charge the Battery

Open the SwitchBot app and check the battery level of your Curtain 3. Even if you use a solar panel, the battery may be depleted if the panel did not receive enough light. Use the included USB-C cable to charge the device directly. A full charge can take 4-6 hours. Do not attempt motor operations until the battery shows at least 50 percent.

Needed for this step

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2

Clean the Curtain Track

The motor has to overcome friction on the track. Dust, debris, or old lubricant can make the track sticky. Remove the SwitchBot device and clean the entire curtain rod or track with a damp cloth. If you have a track-based system, use a silicone-based lubricant (not oil-based) to reduce friction. Reattach the device and test.

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3

Recalibrate the Device

Proper calibration is essential. In the SwitchBot app, go to your Curtain 3 device and select Settings, then Calibration. Follow the on-screen prompts. The device will move to both ends of the track to learn its boundaries. If calibration fails (motor strains or stops), this indicates excessive friction or a weight problem that must be addressed first.

4

Reduce Curtain Weight or Friction

The Curtain 3 has a maximum weight capacity (around 16kg or 35lbs). If your curtains are heavy (e.g., thick blackout curtains or multiple layers), the motor will struggle. Consider using lighter fabric or ensuring the hooks or rings glide smoothly on the track. Bent hooks or a warped track can add significant resistance.

5

Contact SwitchBot Support

If the battery is full, the track is clean and lubricated, and the curtains are within weight limits, but the motor still does not move or strains excessively, the internal motor or gears may be damaged. Contact SwitchBot customer support with your device serial number and a description of the problem. They may offer a replacement under warranty.

Quick Solutions

Still having issues? This is usually the deeper cause below.

Need More Help? SwitchBot Support

Note: The contact information below connects you directly to SwitchBot's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.