Ameristar Gas Furnace: A951X Re: Fault Codes / Status Codes The furnace control comes standard with a 7-segment diagnostic display. To scroll through the Menu Options, press and release the "Menu" button. To enter a menu item, press and release the "Option" button. MENU OPTIONS ...

Ameristar Gas Furnace: A951X Re: Flashing E3_2 E3_2 = Furnace Pressure Switch failed to close on a call for heat. There are 2 Pressure Switches - one connected to the inducer and one connected to the drain line. The Pressure Switch connected to the inducer is the only one that will cause...