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Buderus 5720724 Room Sensor - all LED lights flashing in sequence

colemanoid
colemanoid Member Posts: 1
in THE MAIN WALL
We just purchased a home with Buderus boiler for the radiant floor heating system. There is a Buderus 5720724 room sensor on the main room. All four LED lights (including the vacation light next to the image of an umbrella) are flashing in a chasing sequence. When I push one of the buttons (day setting, auto, night setting), nothing happens. Can someone tell me what this flashing sequence means? I assume either the sensor is not working properly or that there is something else wrong. I have looked in the operating manual and do not find anything about error codes or light sequences.

Comments

  • 109A_5
    109A_5 Member Posts: 1,689
    Hello @colemanoid,

    Any errors on the Logamatic control unit ?

    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System
  • Big Ed_4
    Big Ed_4 Member Posts: 3,025
    You will need to go in the Logamatic control and switch on room sensor . Down load the manual or call tech support 1(603) 562-1100 . Busness hours eastern

    There was an error rendering this rich post.

  • mwalsh8
    mwalsh8 Member Posts: 2
    I have the same issue. Intermittent blinking BFU but not a new system (installed in 2005). Seems to function correctly when not blinking. Changing polarity of wires does not improve it. Replaced BFU, no change either. 
    Any ideas?

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