ALLISTER 108994

ALLISTER 108994 All-Clear Photosystem Safety Sensor Instruction Manual

Model: 108994 | Brand: ALLISTER

1. Introduction

The ALLISTER 108994 All-Clear Photosystem is a safety sensor designed to prevent garage doors from closing on obstructions. This system is compatible with Allstar, Allister, and Pulsar brand garage door openers that utilize safety sensors. It includes approximately 18 inches of wire for splicing into existing wiring. Please note, this photosystem is NOT compatible with MVP Garage Door Openers.

Read this manual thoroughly before installation and operation to ensure proper function and safety.

2. Package Contents

Verify that all components listed below are present in your package:

  • Two (2) Safety Sensor Units (Transmitter and Receiver)
  • Mounting Brackets
  • Mounting Hardware (Screws, Anchors)
  • Wiring (approximately 18 inches per sensor)
Two ALLISTER 108994 All-Clear Photosystem safety sensors, one with a red indicator light.

This image shows the two primary safety sensor units. One unit typically acts as the transmitter, and the other as the receiver. The unit with the red indicator light is often the receiver, indicating power and alignment status.

Mounting brackets and hardware for ALLISTER 108994 All-Clear Photosystem.

Included in the package are various metal mounting brackets and screws, designed to securely attach the safety sensors to the garage door track or wall.

3. Safety Information

Always prioritize safety during installation and operation. Failure to follow these instructions may result in serious injury or property damage.

  • Disconnect Power: Always disconnect power to the garage door opener before performing any installation, wiring, or maintenance.
  • Professional Installation: If you are unsure about any step, consult a qualified garage door technician.
  • Proper Alignment: Ensure sensors are correctly aligned. Misaligned sensors can render the safety system ineffective.
  • Keep Clear: Never stand or walk under a moving garage door.
  • Test Regularly: Test the safety sensors monthly to ensure they are functioning correctly.

4. Setup and Installation

4.1 Tools Required

  • Drill
  • Screwdriver (Phillips and/or Flathead)
  • Wire Strippers
  • Pliers
  • Measuring Tape
  • Pencil

4.2 Mounting the Sensors

  1. Positioning: Mount the sensors on either side of the garage door opening, no higher than 6 inches (15 cm) above the garage floor. Ensure they face each other directly.
  2. Secure Brackets: Use the provided mounting brackets and hardware to securely attach one sensor (transmitter) to one side of the garage door track or wall, and the other sensor (receiver) to the opposite side. The sensors should be rigid and not easily moved.
  3. Leveling: Ensure both sensors are level and at the same height.

4.3 Wiring Instructions

The photosystem comes with approximately 18 inches of wire for each sensor. You will need to splice these into your existing garage door opener wiring. Refer to your garage door opener's manual for specific terminal connections if available. General wiring guidance is as follows:

  • Identify Wires: Each sensor typically has two wires (e.g., white and white/black stripe).
  • Connect to Opener: Connect the wires from both the transmitter and receiver sensors to the corresponding terminals on your garage door opener. Common connections are to terminals labeled 'B' and 'C' or '4' and '5' for the photo eye system.
  • Example Wiring (Refer to your opener's manual for exact terminals):
    • Connect the white/black wire from both the transmitter and receiver to the 'C' terminal (or common/ground) on the opener.
    • Connect the white wire from both the transmitter and receiver to the 'B' terminal (or power/signal) on the opener.
  • Secure Connections: Ensure all wire connections are secure and insulated to prevent short circuits.

4.4 Alignment

After wiring, restore power to the garage door opener. The receiver sensor (often indicated by a red LED) should illuminate steadily when properly aligned. If the light is off or blinking, the sensors are misaligned or there is an obstruction.

  • Adjust: Gently adjust the position of the sensors until the indicator light on the receiver glows steadily.
  • Tighten: Once aligned, tighten all mounting screws to prevent movement.

5. Operating Instructions

5.1 Testing the Photosystem

Perform this test monthly to ensure proper operation:

  1. Open the garage door completely.
  2. Place an object (e.g., a cardboard box) in the path of the sensor beam.
  3. Attempt to close the garage door using your remote or wall button.
  4. The garage door should not close. If it attempts to close and then reverses, or if it closes completely, the safety sensors are not functioning correctly. Refer to the Troubleshooting section.
  5. Remove the object from the sensor path and close the door.

6. Maintenance

Regular maintenance ensures the longevity and reliable operation of your safety sensors.

  • Cleaning: Periodically clean the sensor lenses with a soft, dry cloth to remove dust, dirt, or spiderwebs that may obstruct the beam.
  • Inspection: Check the wiring for any signs of damage, fraying, or loose connections. Ensure the sensors remain securely mounted and aligned.
  • Environmental Factors: In environments with high humidity or near the ocean, corrosion may occur. Inspect connections more frequently in such conditions.

7. Troubleshooting

If your ALLISTER 108994 All-Clear Photosystem is not functioning as expected, consult the table below for common issues and solutions.

Problem Possible Cause Solution
Garage door does not close, or only closes when the wall button is held down (often called 'hold-the-button syndrome'). Misaligned sensors, obstructed beam, faulty wiring, or dirty sensor lenses.
  • Check for obstructions in the sensor beam path.
  • Clean sensor lenses with a soft cloth.
  • Re-align sensors until the receiver's indicator light is steady.
  • Inspect wiring for damage or loose connections.
Receiver sensor indicator light is off or blinking. No power to sensors, misaligned sensors, obstructed beam, or faulty sensor/wiring.
  • Verify power to the garage door opener.
  • Ensure sensors are properly wired to the opener terminals.
  • Check for obstructions.
  • Re-align sensors carefully.
  • If issues persist, contact support or consider sensor replacement.
Sensors are physically damaged. Impact or environmental damage. Replace the damaged sensor unit(s).

8. Specifications

  • Model Number: 108994
  • Manufacturer: Linear
  • Installation Type: Screw-In
  • Material: Metal, Plastic
  • Item Weight: Approximately 0.01 ounces (per unit)
  • Item Package Quantity: 1 (set of two sensors with hardware)
  • Batteries: Not Required, Not Included
  • Compatibility: Allstar, Allister, Pulsar garage door openers using safety sensors. Not compatible with MVP Garage Door Openers.

9. Warranty and Support

For warranty information or technical support, please refer to the documentation provided with your original garage door opener or contact the manufacturer, ALLISTER, directly. Keep your purchase receipt as proof of purchase.

If you purchased this product from a third-party seller, you may also contact them for support or return policies.