Garage door opener runs for a few seconds and then stops, with the door only partially open or closed; no error flashes.

Safety first: Allow the opener to cool for at least 15 minutes before repeated testing to avoid permanent damage.

• Check door movement: Disconnect the opener and move the door manually. If it is hard to move, correct track, roller, or spring issues.
• Inspect for overheating: Feel the motor housing (carefully). If it is very hot, the motor may be overworking or failing.
• Improve ventilation: Ensure the opener is not enclosed tightly against insulation or other materials that trap heat.
• Service door hardware: Lubricate rollers and hinges and correct any binding to reduce load on the motor.
• Replace motor if needed: If the door is free but the opener still overheats and stops, the motor may be failing and should be replaced.