Garage door will not move; Ryobi opener beeps and displays E1 on the control module.

Safety first: Disconnect power to the Ryobi opener at the ceiling outlet or breaker before touching wiring. Do not work under a door that is not properly supported.

• 1. Inspect sensor LEDs: Restore power and look at the two safety sensors near the bottom of the tracks. On Ryobi openers, each sensor should have a solid LED when aligned. If one or both are off or flickering, alignment or wiring is suspect.
• 2. Clear obstructions: Remove any items, cobwebs, or debris in front of the sensors. Clean the sensor lenses with a soft, dry cloth.
• 3. Realign sensors: Loosen the wing nuts on each sensor bracket. Gently rotate and adjust the sensors until both LEDs are solid. Tighten the wing nuts while holding alignment.
• 4. Check wiring at sensors: With power off, inspect the low-voltage wires going into each sensor. Look for cuts, staples through the wire, or loose connections. Reseat the wires in the sensor terminals if needed.
• 5. Check wiring at opener head: At the Ryobi opener head unit, verify the sensor wires are firmly connected to the designated sensor terminals (often marked with sensor icons or colors). Tug gently to ensure they are secure.
• 6. Test operation: Restore power and try closing the door with the wall control. If E1 clears and the door moves, the issue was alignment or wiring. If E1 persists with solid LEDs, one sensor may be defective and should be replaced.