I checked with our vendors and we do not have a replacement 3106996.030 relay board. The most cost effective and easiest way to replace your Dometic Duo Therm 620426.321 AC Unit is to use the Advent Air Replacement RV Air Conditioner for Dometic Setup item # ACDOM150B in black or item # ACDOM150 in white.
This system comes with a wiring harness adapter that will make installation a simple plug-an-play operation and allow you to retain the use of your current thermostat and distribution... view full answer...
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