Bosch 1600H, no spark

Discussion in 'Tankless Water Heater Forum' started by MarvinB, Jan 8, 2014.

  1. MarvinB

    MarvinB New Member

    Messages:
    2
    Location:
    Wash
    The Bosch 1600H worked fine for 3 plus years. Now there is no spark at the pilot. I did the three year maintenance, rebuilding the water valve and cleaning the pilot assembly. I reseated all the electric conections/plugs. I followed the troubleshooting as far as finding good voltage from the hydro generator. I stopped where the troubleshooting suggested replacing the control box. Any better ideas?
  2. MarvinB

    MarvinB New Member

    Messages:
    2
    Location:
    Wash
    I fixed it thanks to a brilliant post on Fixya by ZAWY on 2011Sep11. It was the microswitch. Cost = $0.
  3. DonL

    DonL Jack of all trades Master of one

    Messages:
    4,127
    Location:
    Houston, TX
    A safety switch I would guess.

    Much cheaper than the Shotgun method.


    Enjoy.
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