Staff Answer
Sep 28, 2026 - 07:29 AM
If it runs on LP but won't switch to AC in AUTO, it isn't detecting AC power. Check that the fridge's outlet has 120V (behind the outside access panel), the breaker, and the AC fuse on the board. Then test the heater (an open reading means it's bad). If you have a 600-series fridge, the power board is the 618661 power board (2-way) or the 618666 power board (3-way).
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.
