Quick Menu Troubleshooting How do you find out if your ETOG sensor is defective? How to work around a faulty ETOG sensor What Does the HI/LO Error message mean on my COMMBOX? What does COMMBOX error code “SensErr 2” mean? What does COMMBOX error code “SensErr 1” mean? Wiring ETOG Version 2 Wiring Diagram How many Mats or Amps can I connect to the CommBox? Can I use the Commbox or Resibox with single phase electric? What are the amperage capabilities of each Box at each voltage? Wiring Miscellaneous questions Will any third party sensor work with the CommBox or ResiBox? How long should I program my CommBox to melt snow? Can one AirSense be used with two CommBoxes? Programming Where are the DIP switches located on the COMMBOX-600? What do each of the COMMBOX DIP Switches Mean? Programming your COMMBOX-600 Preparing for your project Do I need to provide a transformer to wire in 3-phase? ETOG Version 2 Wiring Diagram Please look below for the wiring for both Version 1 and 2 of the ETOG.