E-1: Communication Error

Connect power to EasyKey.

Verify that the cable is correctly connected. See Installation manual.

Verify condition of fuse and replace if necessary. See Repair-Parts manual.

Verify that the cable is correctly connected. See Installation manual.

Verify that the cable has not been cut or bent at a radius smaller than 1.6 in. (40 mm).

Disconnect fiber optic cable ends and clean with a lint-free cloth.

Replace cable.