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Garage Door Repairs in Massachusetts and New Hampshire

1-866-DOOR-911

HAVING A PROBLEM WITH YOUR GARAGE DOOR OPENER?

Always pull the emergency disconnect opener and manually “try” the door 1st and check for proper operation. It should work
smooth and balanced though the entire cycle.

1. My door will not close and the light bulbs blink on my motor unit:

The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction.

Verify the safety sensors are properly installed, aligned and free of any obstructions.

If you can hold the wall control pressed down until the door completes its cycle and it stays down. It’s usually the photo sensors.

Check diagnostic LED for flashes on the motor unit then refer to the Diagnostic Chart.

2. My remotes will not activate the door:

Verify your door control is not blinking. If it is blinking, deactivate the Lock Mode by pressing and holding the “Lock” button for several seconds.

Reprogram remotes following the programming instructions.

If remote will still not activate your door, check diagnostic LED for flashes on motor unit then refer to Diagnostic Chart.

3. My door reverses for no apparent reason:

Repeat safety reverse test after adjustments to force or travel limits. The need for occasional adjustment for the force and limit settings is normal. Weather conditions in particular can affect door travel.

Manually check door for balance or any binding problems.

Adjust the Force.

4. My door reverses for no apparent reason after fully closing and touching the floor:

Repeat safety reverse test after adjustments to force or travel limits. The need for occasional adjustment for the force and limit settings is normal. Weather conditions in particular can affect door travel.

Adjust the UP and DOWN Travel Limits. Decrease down travel by turning down limit adjustment screw clockwise.

5. My lights will not turn off when door is open:

The garage door opener is equipped with a security light feature. This feature activates the light on when the safety sensor beam has been obstructed.

6. My motor unit hums briefly:

First verify that the trolley is against the stop bolt.

Release the door from the opener by pulling the Emergency Release Rope.

Manually bring the door to a closed position.

Unplug opener then loosen the chain by adjusting the outer nut 4 to 5 turns. Loosen stop bolt a few turns. This relieves the tension.

Decrease the UP travel by turning the UP Travel adjustment screw 2 full turns away from the arrow.

Run the motor unit from the remote control or door control. The trolley should travel towards the door and stop. If the trolley re-engages with the door, pull the Emergency Release Rope to disengage.

Re-tighten the outer nut so the chain is a 1/2″ (13 mm) above the base of the rail. (When the door is reconnected and closed, the chain will sag. This is normal.)

If the trolley does not move away from the bolt, repeat the steps above.
If the trolly is not on the stop bolt and makes a loud humming noise and doesn’t lift/ lower the door the gear and sprocket assembly could be worn out. Call for service.

Shumsky Door
1-866-DOOR-911

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