Sun dance Optima, heater will not go above 77 degrees, it is not in economy mode, filter is clean, have good water flow.

1 thought on “heater”

  1. Bill are there any of these error messages on the topside control panel ie flashing FLO, OH, HOT, SN1, SN3 etc? Also what year was the Optima built? You can find this info on the id sticker near the Sentry control box.

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