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Thread: Troubles with MACL-153M / MA-L

  1. #1
    Junior Member
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    Jan 2017
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    Troubles with MACL-153M / MA-L

    I have a MACL-153M and a MA-L installed in a staircase. There is one ceiling lamp with a incandescent bulb. I used a multimeter to ensure the wiring is correct.

    Problem:
    • If I (try to) switch the light on using the master dimmer, the bulb goes on for about a second and then goes off. However the indicator LED on the master dimmer stays on.
    • If I (try to) switch the light on using the companion dimmer, nothing happens except that the indicator LED on the master dimmer goes on.


    I changed bulbs and tested the wires but can not find the reason for this problem.

    Anyone any idea?

  2. #2
    Junior Member
    Join Date
    Jan 2017
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    2
    oh boy... you won't believe it...

    After nearly two weeks of changing dimmers, measure voltage, reading wiring schemas, I started to put the lamp apart and found a little label 'max. 14W LED bulb'. I went to the website and found this:

    Due to the built-in overheating protection, this lamp can only be used with an energy efficient light bulb, max. 13 watts.

    Since I had issues with a not compatible LED first, I wanted to be on the save side and use an incandescent bulb...

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