Furnace shuts down prematurely
I have a Dometic furnace, model number DFSAD12131, in my 2018 Escape 19. When the thermostat calls for heat the furnace will ignite and run for a period of time, but then shuts down suddenly and prematurely (before the thermostat is satisfied). When this happens it turns off the on-off rocker switch located below the control board on the furnace. The LED trouble code light on the board is not flashing. When I flip the rocker switch to 'on' the furnace will start up again. This has been an intermittent problem that is now persistent.
Has anyone else had this issue and resolved it? Any thoughts?