Only the blower was running when I arrived. Thermostat was calling for the heat pump to run. However, the heat pump was calling for the furnace to run, but the heat pump was only sending 13 V back to the dual fuel control board on the side of the furnace. I reset thermostat and changed the minimum outdoor temperatures for the heat pump and the furnace. The heat pump setting was allowing the heat pump to run at any temperature. The furnace was only allowed to run under 30°. I ran the thermostat in auxiliary mode after changing the settings and furnace kicked on like it should. I then reset thermostat back to regular heat and the thermostat turned on the furnace instead of the heat pump since it is below 30°. I ran heat pump as well to ensure that the heat pump is operating properly. System is running as it should add departure.