My hand transmitter has been lost or stolen.
Marantec garage door code change.
If you have an older garage door that is only operated by a remote you must.
The pin code on this device can be changed by following a few simple instructions.
Note you need to know the existing 4 digit pin code to make these changes.
For marantec eos m4500e m4700e and m4900e garage door openers.
Usually a bar code number.
What do i have to do to make my garage safe again.
Newer garage door openers have a keypad in addition to the remote which makes it slightly easier to change the code.
Here are the steps you need to take to change the 4 digit pin code on your marantec m3 631 wireless keyless enty.
If you lose a hand transmitter it is safer to delete the tra.
Usually a bar code number.