Master Lock ATS 211 Situation, from a remote, Opener operates, control, but not, from Door Control:, Probable Cause & Solution, A remote control has short range:

Having a Problem?

Situation	Probable Cause & Solution

The opener doesn't operate from either the Door Control or a remote control:

1.Have you disabled all door locks? Review installation instruction warnings on page 7.

2.Does the opener have electric power? Plug a lamp into the outlet. If it doesn't light, check the fuse box or the circuit breaker. (Some outlets are controlled by a wall switch.)

3.Repeated operation may have tripped the overload protector in the motor. Wait 15 minutes. Try again.

4.Is there a build-up of ice or snow under the door? The door may be frozen to the ground. Remove any restriction.

5.Remove the bell wire from the opener terminal screws. Short the red and white terminals by touching both terminals at the same time with a piece of metal (screwdriver or coin). If the opener runs, check for a faulty wire connection at the door control or a short under the staples.

Opener operates	1. Are the wiring connections correct? Review Step 6, page 13.
from a remote
control, but not
from Door Control:

A remote control has short range:

1.Check the battery test light. If the light is dim, change the battery.

2.Change the location of the remote control in the car.

3.A metal door, foil-backed insulation or metal garage siding will reduce the transmission range.

4.Check to be sure the antenna on the back panel of opener extends fully downward.

Install Antenna Kit, Part No. 41A3504, to increase range.

Opener noise is disturbing in living quarters of home:

1.If operational noise is a problem because of proximity of the opener to the living quarters, the Vibration Isolator Kit 41A3263 can be installed. This kit was designed to eliminate the "sounding board effect" and is easy to install.

The garage door opens and closes by itself:

1.Check to be sure that a remote control push button is not stuck in the "down" position.

2.Remove the bell wire from the Door Control terminals and operate from a remote control only. If this solves the problem, the Door Control is faulty (replace), or there is an intermittent short on the wire between the Door Control and the opener.

The door doesn't open completely:

1.Is something obstructing the door?

2.If door opens at least 5 feet, the travel limits may need to be increased. One turn equals 2 inches of travel. See page 21.

Repeat the safety reverse test after the adjustment is complete.

3.If the door has been working properly but now doesn't open all the way, increase the up force. See page 22.

Repeat the safety reverse test after the adjustment is complete.

The door doesn't close completely:

1.Is something obstructing the door?

2.Review travel limits adjustment procedures on page 21.

Repeat the safety reverse test after any adjustment of door arm length, close force or down limit.