– 31 –Outlet Control ThermistorThe outlet control thermistor is located on the lowerrear area of the blower housing. It is below theoutlet control backup thermostat and the rack drythermostat. The outlet control thermistor measuresoutgoing air temperature and provides temperaturechange information to the power board. The outletcontrol thermistor has the same resistance valuesas the inlet control thermistor. (See Inlet ControlThermistor.)Operation of the outlet control thermistor can bechecked by using the Outlet Thermistor test inservice test mode. (See Service Test Mode.)Specific failures associated with the outlet controlthermistor can initiate error codes E3 and E5. (SeeService Test Mode.)To remove the outlet control thermistor:Remove the drum. (See1. Drum.)Lift the right side of the vapor shield and2.disconnect the 2 wires from the outlet controlthermistor.Remove the 2 Phillips-head screws that attach3.the outlet control thermistor to the blowerhousing.High Limit ThermostatOn electric models, the high limit thermostat islocated on the top right area of the heater housing.On gas models, the high limit thermostat is locatedon the upper right side of the diffuser. The high limitthermostat monitors incoming air temperature.If the thermostat reaches a temperature beyond itsmaximum temperature rating, it will trip and disablepower to the elements or burner assembly.For the electric models, the high limit thermostatopens at 315°F (157°C) and will automatically resetat 250°F (121°C).For the gas model, the open temperature is 180°F(82°C) and the close temperature is 165°F (74°C).To remove the high limit thermostat:Remove the drum. (See1. Drum.)Disconnect the 2 wires from the high limit2.thermostat.Remove the Phillips-head screw that attaches3.the high limit thermostat to the heater assemblyor diffuser.Slide the thermostat from the heater assembly4.or diffuser.Electric Model ShownOutlet Control ThermistorElectric Model ShownHigh Limit Thermostat