I have an M4500 garage opener that has been functioning properly for the past several years. We were on vacation and recently returned. While on vacation I set the unit in vacation mode so the remotes would no longer work. (We take several vacations/year and have done this numerous times before with no issues.
Upon return this time, I entered through the front door and went to the garage and opened the garage door by depressing the open/close button on the wall control panel. While the door was up, I also pressed the lock button on the wall control unit and the door button LED (which was blinking) turned to a solid on.
After unloading the car, we decided to leave of a while. When my wife pressed the visor button in the car to lower the door, the door did no respond as it has done in the past. I got out and retrieved a 2-button remote from the house and pressed the button. Still no response. I tried a 2nd Marantec remote with the same results - the opener did not respond to any of the remotes. I then fully tested the operation of the wall control. All functions seemed to work correctly. I confirmed that the wall control was not set to vacation mode!
Later in the day I attempted to reprogram the opener. Following the instructions, I pressed the P button until the unit went into programming mode. I continued to press the P button until the 7 LED started to blink. I then pressed the large button on the 2-button remote (the red LED on the remote lit). Per the programming instructions, after a short period of time the 7 LED should begin to blink rapidly indicating the opener had learned the signal from the remote. The 7 LED never started to blink rapidly. I have tried the procedure multiple times. I have unplugged the unit and plugged it back in after a short delay multiple times. After each programming attempt, and power cycle attempt, I manually cycled the door up and down several times. I have removed the receiver and replugged it in several times and could not see anything wrong with the receiver.
The door properly responds to the wall control commands, but none of the remotes work. It seems as though the receiver no longer works. What should I do next?
Upon return this time, I entered through the front door and went to the garage and opened the garage door by depressing the open/close button on the wall control panel. While the door was up, I also pressed the lock button on the wall control unit and the door button LED (which was blinking) turned to a solid on.
After unloading the car, we decided to leave of a while. When my wife pressed the visor button in the car to lower the door, the door did no respond as it has done in the past. I got out and retrieved a 2-button remote from the house and pressed the button. Still no response. I tried a 2nd Marantec remote with the same results - the opener did not respond to any of the remotes. I then fully tested the operation of the wall control. All functions seemed to work correctly. I confirmed that the wall control was not set to vacation mode!
Later in the day I attempted to reprogram the opener. Following the instructions, I pressed the P button until the unit went into programming mode. I continued to press the P button until the 7 LED started to blink. I then pressed the large button on the 2-button remote (the red LED on the remote lit). Per the programming instructions, after a short period of time the 7 LED should begin to blink rapidly indicating the opener had learned the signal from the remote. The 7 LED never started to blink rapidly. I have tried the procedure multiple times. I have unplugged the unit and plugged it back in after a short delay multiple times. After each programming attempt, and power cycle attempt, I manually cycled the door up and down several times. I have removed the receiver and replugged it in several times and could not see anything wrong with the receiver.
The door properly responds to the wall control commands, but none of the remotes work. It seems as though the receiver no longer works. What should I do next?
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