Staff Answer
Sep 25, 2026 - 01:23 PM
We don't have a schematic to share for the Polar N7. Before installing a new board, check for shorts in what the board powers. With power off, check the AC heater for a short to ground, and inspect the wiring harness and igniter lead for burned or chafed insulation. The Power Board 639593 is in stock. Our Tech Support service can walk you through the checks.
Since I can't confirm this 100% from here, please email us at info@rvfridgeguys.com or call 800-712-8822 with your model and serial number and we'll double-check it for you. You can also browse www.rvfridgeguys.com.
