E02 : High Current

  • Hold down actual temperature key for each zone to view current output when the heat module is on.
  • Exchange zone module with another one. Turn zone on and check for error. If error moves to another zone, replace the faulty module. (When there is a high current error, the LED on that zone's module will turn red while the error is displayed.
  • Check continuity of transformer windings, and if shorted to ground.
  • Perform the hose heat transformer primary and secondary check. (see hose heat transformer not functioning section in E03)