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Cal Spa "Sn" display

(2 posts)

  1. pather
    Member

    My Cal Spa will not start (possibly following a close lighting strike) I get a "Sn" display reading but tub will not turn on. Any suggested diagnostics I can do?

    Posted 2 months ago #

  2. Mary
    Moderator

    You can try unplugging the spa sensor harness, wait a few moments and then plug back in. You would want to turn the power off before doing this. Usually a SN error code is signaling that one of the sensors is failing, but since you said that it was a possible lighting strike then your circuit board could have been damaged.

    Posted 1 month ago #

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