Marantec Comfort 270 Garage Door Unit Needs Switching off and on to Work

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  c64 on 30/12/2024 - 12:33

  Does anyone have any ideas what could be causing this?

  spiders

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  spackbace on 30/12/2024 - 12:39

  +1

  https://www.marantec.com/files/eba_sap/I/100316.pdf

  4.3 - Battery backup connected

  • 

    crentist on 30/12/2024 - 13:57

    +1

    The battery seems to be optional?
    OP try removing the battery (there is a guide for this at 3.4.8), or following the instructions to disable it at 4.7.3, and see what happens

    • 

      Coffeedilmahh on 30/12/2024 - 16:30

      Thanks, I have disabled the battery now to see if that fixes the problem or not. If it does then I'll replace the battery.. or maybe just keep it disabled because I really don't see the benefit of having it

      Edit: Now the unit is really misbehaving! The whole unit is dead after about 20 seconds. When I switch it off and on at the power point, it dies again not long after. Is it time to surrender and get the whole thing replaced?

      https://ibb.co/wp0ZTwv

• 

  blitz on 30/12/2024 - 13:27

  +1

  I had an opener that started doing this after maybe six? years of use. Unfortunately, I can't remember what was causing it, but the "turning on/off" symptom was identical. The original installers had no idea, but the manufacturer indicated that the unit was not powerful enough for the door. In the end, I bought a more powerful unit online and installed it myself. Not sure if this helps or not.

  • 

    Coffeedilmahh on 30/12/2024 - 16:27

    Thays interesting how your unit only became not powerful enough for the door after 6 years of use. I've had mine for half that time, and it was workong perfectly fine before. If after I tried all the tips offered by others here and it still plays up, then its possibly due for a replacement.

• 

  crentist on 30/12/2024 - 14:20

  +1

  Is it just the remote not working? The receiver is connected to the black wire hanging down in your pic. Has it been moved or damaged recently?
  It looks like you have a wired button (the red and black cables in your pic) somewhere, is that working okay?
  First thing would be to check if those are working okay. If either is damaged, they could be conflicting with each other.
  And possibly disconnect one at a time and see if anything changes.

  You might just have a dead receiver, which can be replaced. Alternatively, you could buy a 433mhz remote receiver and a few remotes for around $10 on aliexpress and wire it to the button terminals.
  The steps for this are almost exactly the same as installing one of those Meross wifi garage door controllers that often pop up on here (you could also just get one of those).

  I notice what appears to be the battery icon on the display

  From the guide shared by spackbace, the battery icon is the number 3.
  If you mean the thing that looks kinda like a battery, that would be 'Gate position OPEN'
  Does it correctly show open and closed? That might just be normal operation.

  If that is incorrect, it could be something along the lines of the positioning and force requirements getting reset for some reason. Turning it off and on might get it to pick up the right settings, or possibly just into a default mode that doesn't know how to reliably position itself.
  Running through the setup steps may help.

  • 

    Coffeedilmahh on 30/12/2024 - 16:42

    Yes I have both a wired button installed on the side of the garage wall next to the door entrance as well as a wireless remote. Both are working fine. If the whole unit switches off (nothing displaying on the lcd screen) on its own, and I have to switch it off and on at the power point to bring it back to life, how do I confirm thay to be a symptom of a receiver problem?

    The gate position open and closed icon seems to be displaying correctly after I checked opening and closing the garage door.

• 

  c64 on 30/12/2024 - 16:50

  turn it off and pull off the cover that conceals the battery and take a pic of the battery

  • 

    Coffeedilmahh on 30/12/2024 - 17:31

    Interesting, I dont think theres even a battery in there. From the youtube tutorials Ive seen about changing the battery in the 200 series, the battery pack is quite b8g and will take up most of the room in there. And yet, mine shows up mainly empty inside.

    https://ibb.co/NTY0Qny

    • 

      c64 on 30/12/2024 - 18:03

      according to the manual there is supposed to be a 2-pin connector (XN70) for the backup battery behind the the front cover to the right of the LCD display (with comfort 270 written on it). are you sure you can't slide up the right front cover as shown in section 3.4.8

      • 

        Coffeedilmahh on 30/12/2024 - 18:17

        I tried to slide the right cover off as per the manual but it appears to be seized up because it just wouldnt budge without the whole outer case coming off, either that or I am just a boofhead at doing it.
        Looking under it though I cant see there's anything behind it at all, which was what lead me to think there's no backup battery. According to the manual the XN70 connectors should be immediately behind the cover but when I look at it from underneath, theres nothing there.

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  Bob Svargis on 31/12/2024 - 11:07

  Does the mechanism need some sort of periodic lubrication perhaps?