Advent air conditioner troubleshooting

DISPLAYCAUSESOLUTION
ErDip Switch position incorrectSet Dip switches to correct position on back of Thermostat
ElRoom Temp Sensor DefectReplace Thermostat
E2Indoor Coil Temp Sensor DefectCheck wire connections and ensure sensor is properly installed. Replace Sensor
E3Outdoor Coil Temp Sensor DefectCheck wire connections and ensure sensor is properly installed. Replace Sensor
E4Outdoor Ambient Temp Sensor DefectCheck wire connections and ensure sensor is properly installed. Replace Sensor
E5Communication Defect with T-Stat and Relay KitCheck wire connections at T-Stat and relay kit
LoDC voltage is below 10 Volts (+/- 0.5V)Check wire connections and ensure DC voltage is above 10 volts
dFIndoor or Outdoor coil is frozenSystem is deicing and cannot be used for 35 minutes and will restart automatically