43
06/21
8390-016A
DIAL CONTROL TROUBLESHOOTING
DIAL CONTROL NOT WORKING
PLUG
APPLIANCE IN
IS THERE 5VDC
ON THE BLACK
AND RED WIRE?
SYSTEM IS
REPAIRED
IS THERE A
GREEN BLINKING
LIGHT ON THE
DIAL CONTROL?
YES
NO
REPLACE THE DIAL
CONTROL HARNESS
ARE THERE
ANY BROKEN
WIRES IN THE
DIAL CONTROL
HARNESS?
DOES THE
BLINK CHANGE IF
YOU TURN ON THE
DIAL CONTROL &
THERMOSTAT?
REPLACE THE
CONTROL BOARD
REPLACE THE
DIAL CONTROL
YES
NO
NO
YES
NO
YES
Testing locations and readings on next page.