START
CONNECT / TERMINAL TO / RS232 PORT / AND CYCLE / POWER
NO
DISPLAY / READABLE?
YES
NO
DISPLAY ON / TERMINAL?
ERROR / MESSAGE?
NO
B
YES
YES
NO
DIAGNOSTIC / ERROR?
REPLACE PARTS / PER / DIAGNOSTIC / GUIDE
RUN ALL TESTS
C
YES
REPLACE PARTS / PER / DIAGNOSTIC / GUIDE
CYCLE POWER
ERROR?
YES
NO
RESTART
DONE
NO
OTHER?
YES
A
