Staff Answer
Sep 28, 2026 - 07:31 AM
That wiring is correct: one heater lead on AC_HT_LO and the other on AC_HT_HI. With a blown fuse, a failed heater and discoloration on the board, replace both the board (the 628661 power board) and the heater. Test the new heater lead-to-housing first (it should be open) to make sure there's no short.
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