I Do Not Service Marantec Openers
Marantec openers are a headache.
They use proprietary everything.
The transmitter frequencies, the way the transmitters are programmed, their safety sensors, and even their control panel are all proprietary.
They have boldy discontinued three of their old transmitters and don't even have them in stock for past customrs.
Furthermore many, if not all, of their control panels revolve around an extremely difficult to use dial pad.
You press a P key for so many seconds, then dial in the number of the setting you want to change if you know the right number, and then increase or decrease that setting.
Unfortunately some of their instruction manuals are wrong.
The only way to adjust some of their settings is to play with them until you slowly deduce what does actually work.
I once spent an entire weekend playing with one I had taken down and brought home with me.
A weekend project.
Now if you could call Marantec and speak with a support person it would not be such an issue.
Unfortunately they have a recording telling you to call a local Marantec authorized dealer listed on their website.
In our area, the last I checked, there was only one such company in the area and they were a franchise.
This franchise insisted on charging hundreds of dollars each time they reset the opener.
It was a monopoly which they fully exploited at the customers expense.
After one of their customers had spend $600 for the opener and another thousand in multiple service charges they had me replace the unit out of frustration.
Now days I recommend if you have a problem with your Marantec it is best to simply replace it.
For $400 you can get a Linear LDCO800 that I think is better in every measurable way.
Now you may say Marantec is suppose to be a quality unit and have a lifetime warranty.
To that I say almost all openers now have lifetime warranties.
You may say it is a very quiet opener.
Now days almost all openers are very quiet if they are belt driven.
You may have a love affair with all things German.
I'd say there are two other German manufacturers on the market.
Do yourself a favor and buy some other opener that does not use proprietary hardware.
The test is will it work with your cars homelink system or a universal remote from Lowes or Home Depot.
If the opener doesn't work with standard universal transmitters you may have future problems.
Another test would be simply to call the company directly as if you were looking for tech support.
If they don't have tech support line then it will be costly...
I wrote this post on 2017-10-04.