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DHW :OFF on Vitodens 200

Howard718
Howard718 Member Posts: 1
in Radiant Heating
My Vitodens 200 boiler control panel display shows DHW: OFF (even though space heating is working fine and the control unit display shows that both DHW and Space Heating programs are selected). I cannot find any mention of this condition in any of the manuals.  Does anyone know what might cause this condition>



I should also mention that we had a power failure and this condition might have started after that event, but I cannot prove that for sure.

Comments

  • Paul Pollets
    Paul Pollets Member Posts: 3,665
    Reboot

    If it was working before, turn off the appliance for 1 minute, than turn back on which will reboot the computer. The DHW should come back on. Otherwise, it may be the sensor...do a scan check to see that all is well.
  • CMadatMe
    CMadatMe Member Posts: 3,086
    First Thing

    Is to check under coding #2 and make sure the system type is set correctly. When you lost power the boiler may have reverted its self back to 00:1 system type and is not recognizing the DHW sensor.

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