Staff Answer
Sep 28, 2026 - 06:17 AM
We don't have a schematic for the 628661. If it locks out after one cycle but runs fine when bypassed, check the parts the board monitors before you replace the board. Test the 636658 thermistor (thermistor) and its connection, and check the high-temp limit switch on the cooling unit for continuity, since a limit that opens when hot will cause a lockout. If those check good, the board is the likely culprit, and the 628661 power board is in stock.
If you have any questions, just reach out at info@rvfridgeguys.com or call us at 800-712-8822. You can find everything we carry at www.rvfridgeguys.com.
