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Display multi error codes


Tom Camp

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My 2004 Sundance shows 4 flat lines on the display. If I trip the gfci and turn it back on it flashes multiple error codes and multi temp readings before stopping and displaying 4flat lines across the display. Repeated this cycle 10+ times and max run time is less than 30 seconds. Doesn’t trip gfci 

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Four dashes is called "watchdog" and is the computer equivalent of shrugging your shoulders.

Most often, watchdog is a faulty sensor. You can test them with an ohm meter. 

It can also be triggered by low flow from clogged filter or failing circulation pump, failing transformer, or incoming power issue. But I'd test the sensors first.

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