Fault Code LC: Scale Build-up in Heat Exchanger (when checking maintenance code history, “00” is substituted for “LC”)
Fault: Scale Build-up in Heat Exchanger (when checking maintenance code history, “00” is substituted for “LC”)
Your Rheem water heater has an electronic diagnostic system built directly into it. When your water heater finds a problem, it displays an error code in the LED display on the remote control or the front panel.