Marantec 4500e Garage Door Opener

Old 02-27-23, 10:25 AM
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Marantec 4500e Garage Door Opener

I have a 5-year-old Marantec 4500e Garage Door Opener . It always worked fine until a week ago. Now it suddenly will open but not close. It doesn't matter if it's operated using the remote or the wall mount button. The sensors are properly aligned and they are lit red and green solid. There are no broken springs and I oiled the track/rollers as well.

When I unhook it and operate manually and then rehook, the door will open and close just fine again for a day or two and then the same thing will happen all over again.

I have 8-1-2 lights blinking on the control module. I do not see this combination of errors in my manual!

What is causing this and how can I fix it?
Old 03-04-23, 05:05 PM
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We you push the close button on the wall control.... does the door start down and stop ?
Does the room light blink ?

Looks like the operator is missing a setup parameter.
Marantec 4500e manual - pdf

For proper initial operation of the operator, three basic functions must be set using express programming:
 Open Door Position
 Close Door Position
 Transmitter Coding
Press and hold the “P” button for approximately 2 seconds. When LED’s 8, 1 and 2 illuminate, release the button. You are now ready to set or change the desired adjustment. If no buttons are pressed within 120 seconds while in programming mode, the control unit reverts back to operating mode.

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