| Having a Problem? (continued) |
Situation | Probable Cause & Solution |
| |
The door opens but 1. Check the safety reversing sensor. If the sensor lights do not glow, see page 18. | |
won't close: |
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The door reverses for 1. Is something obstructing the door? Pull the red manual release handle. Operate the
no apparent reason |
| door manually. If it is unbalanced or binding, call a garage door serviceman to |
and opener light |
| correct the problem. |
doesn't blink: | 2. | Clear any ice or snow from the garage floor area where the door closes. |
| ||
| 3. | Review force adjustment procedures on page 22. |
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| Repeat the safety reverse test after the adjustment is complete. |
| 4. | If door reverses in the fully closed position, decrease the travel limits (page 21). |
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| Repeat safety reverse test after the adjustment is complete. The need for |
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| occasional adjustment of the force and limit settings is normal. Weather |
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| conditions in particular can affect door travel. |
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The door reverses for no apparent reason and opener light blinks for 5 seconds after reversing:
1.Check the safety reversing sensor. Remove the obstruction or align the receiving eye. See page 18.
The opener light | . . . doesn't turn on: | |
| 1. | Replace the light bulb (75 watts maximum). Use a "garage door opener bulb" if |
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| standard bulb burns out prematurely due to vibration. Vibration may be caused by |
|
| loose end panel. Retighten the screws. |
| . . . doesn't turn off: | |
| 1. | There may be a defective ground at the ceiling or wall receptacle. The unit must be |
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| grounded. |
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| |
The opener strains or 1. | The door may be out of balance or the springs are broken. Close the door and use | |
maximum force is |
| the manual release rope and handle to disconnect the trolley. Open and close the |
needed to operate |
| door manually. A properly balanced door will stay in any point of travel while being |
door: |
| supported entirely by its springs. If it does not, disconnect the opener and call a |
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| garage door serviceman to correct the problem. Do not increase the force to |
|
| operate the opener. |
The opener motor hums briefly, then won't work:
1.The garage door springs are broken. See above.
2.The trolley may be jammed into the stop bolts. Pull or push on the door while the motor is humming to release the jammed condition.
Repeat the safety reverse test after the adjustment is complete.
3.If the problem occurs on the first operation of the opener, door may be locked. Disable the door lock. If the chain was removed and reinstalled, the motor may be out of phase. Remove the chain; cycle the motor to the down position. Observe the drive sprocket. When it turns in a clockwise direction and stops in the down position,
Repeat the safety reverse test after the adjustment is complete.
The opener won't 1. Use the manual release rope and handle to disconnect the trolley. The door can be
operate due toopened and closed manually. When the power is restored, press the Door Control
power failure:push button and trolley will automatically reconnect (unless trolley is in lockout position. See page 25.)
2.The Outside Quick Release accessory (for use on garages with no service door) disconnects the trolley from outside the garage in case of power failure.
The chain droops 1. It is normal for the chain to droop slightly in the closed door position. Use the manual
or sags:release rope and handle to disconnect the trolley. If the chain returns to the normal height when the trolley is disengaged and the door reverses on a 2x4, no adjustments are needed (see page 7).
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