Apollo 1550ETL Installation Manual page 21

SYMPTOM
Gate will open using push button on side of box, but not with transmitter.
1. Code switches do not match. Check that the code switches in the transmitter and the receiver match.
2. Low or dead battery in transmitter. Replace battery.
3. Fuse blown on circuit board. Check fuses on gate control board.
4. Low battery in operator. Battery voltage should be 12 to 14 volts under load.
5. Replace receiver.
Note: Code switches for receiver are inside of receiver. Do not confuse with program switches on control board.
SYMPTOM
Transmitter works, but not very far.
Note: Transmission distances will vary according to terrain, obstructions, and electrical interference.
The normal range from inside a vehicle is 50-100 feet while 100-150 feet may be obtained from outside
the vehicle.
1. Low battery in transmitter. Replace battery.
2. Transmitter malfunctioning. Try a different transmitter.
3. Antenna not making good connection. Be sure center conductor of antenna is penetrating the female
connector on the side of the gate box.
4. Reception is being blocked. Raise the height of the antenna using a #244 antenna extension kit.
5. Replace receiver.
SYMPTOM
Gate randomly opens, closes, or stops for no reason.
1. Transmitter is stuck on. Check all transmitters, keypads, pushbuttons, etc. for a stuck button.
2. Transmitter and receiver code switches are all down, up, or in the middle. Change at least one switch
position in the transmitter and receiver.
3. Push button on side of control box is defective. Disconnect and test.
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