Staff Answer
Sep 27, 2026 - 06:20 PM
An element that reads open on your meter has burned out, which is why you're getting no current. It needs to be replaced. The 621702 AC heater fits the 682 if the serial number on your cooling unit is below 11231023. If the serial is above that, you need the 638374 AC heater. That serial number is stamped on the cooling unit itself, behind the outside access panel.
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