Aaaremotes’ Tech Tip – Garage Door Opener Opens By Itself
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Common causes that make your garage door opener open the door on its own are: |
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| Possible Cause: | Resolution: |
| Neighbor with the same garage door opener |
Change the access code or reprogram your remotes. |
| Neighbor with a similar garage door opener using the same frequency |
Change the access code or reprogram your remotes. |
| Short in the wall button |
Remove wall button wiring for a few days from opener to troubleshoot. Replace wiring and wall button. |
| Short in the wall button wiring |
Remove wall button wiring for a few days from opener to troubleshoot. Replace wiring and wall button. |
| Short in the wired keypad |
Remove wired keypad for a few days from opener to troubleshoot. Replace wiring and keypad. |
| Short in the wiring to the wired keypad |
Remove wired keypad for a few days from opener to troubleshoot. Replace wiring and keypad. |
| Short in the safety beam sensor wiring |
Replace wiring to safety beam sensors to troubleshoot. Upgrade from 22 guage wiring to 16 guage. Cold temperatures can affect the wiring and cause a short. Lower guage wiring is thicker. Check for pinches, frays, or cuts in the wiring that can also short the wiring. Stapling the wiring is a common cause for shorts because it cuts through the plastic coat of the wiring and shorts the system. |
| Short in the safety beam sensors
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Safety beam sensors may be defective. Replace safety beam sensors to troubleshoot. If you have two identical garage door openers, remove the safety beam sensors from the other opener and add them to the non-working garage door opener to troubleshoot. |
| Short in the garage door opener circuit/logic board |
Circuit/Logic board may be defective. Replace circuit board to troubleshoot. If you have two identical garage door openers, remove the circuit board from the other opener and add it to the non-working garage door opener to troubleshoot. |
| Short in the garage door opener receiver board
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Receiver board may be defective. Replace receiver board (receiver board may be internal or external – internal means inside the powerhead – external is a separate box outside the powerhead) to troubleshoot. If you have two identical garage door openers, remove the receiver board from the other opener and add it to the non-working garage door opener to troubleshoot. |
| Short in the wiring from external receiver
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Receiver board may be defective. Replace receiver board (receiver board may be internal or external – internal means inside the powerhead – external is a separate box outside the powerhead) to troubleshoot. If you have two identical garage door openers, remove the receiver board from the other opener and add it to the non-working garage door opener to troubleshoot. |
| Your remote is sending random signals (if defective or if the remote is becoming defective) |
Remove battery from remote for a few days and see if problem continues. Replace remote if necessary. |
| Nearby radio station or radio tower or electric tower |
Change the access code or reprogram your remotes. Try a different receiver and transmitter kit on your machine if problem continues. Some kits we have available: GIRU-1T, 635LM-1T, 1090-1T and more… |
| CB radios |
Try a different receiver and transmitter kit with a different frequency than the one you are currently using (check your receiver for the frequency – MHz). This will Some kits we have available: GIRU-1T, 635LM-1T, 1090-1T and more… |
| Police radios |
Try a different receiver and transmitter kit with a different frequency than the one you are currently using (check your receiver for the frequency – MHz). This will Some kits we have available: GIRU-1T, 635LM-1T, 1090-1T and more… |
| Nearby Police or Fire station | Try a different receiver and transmitter kit with a different frequency than the one you are currently using (check your receiver for the frequency – MHz). This will Some kits we have available: GIRU-1T, 635LM-1T, 1090-1T and more… |
| Nearby Hospital | Try a different receiver and transmitter kit with a different frequency than the one you are currently using (check your receiver for the frequency – MHz). This will Some kits we have available: GIRU-1T, 635LM-1T, 1090-1T and more… |
| Faulty eletrical wiring in garage | Plug garage door opener into an outlet at a different circuit. Use an extension cable if necessary. |
| Power surge/Short in the electrical outlet | Plug garage door opener into an outlet at a different circuit. Use an extension cable if necessary. Use a surge protector for your garage door opener. Some Lift-Master machines can use MOV Lightning/Power Surge Suppressor Kits 41A5530, 41A5530-1, 41A5530-2. |
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