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F232329
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Troubleshooting
4. Door Lock Switch Analysis
Symptom: The WE-6 Display Reads “Close Door”
WHEN
THE SQ3 SWITCH
IS OPEN, ARE THE
FOLLOWING VOLTAGE
READINGS PRESENT?
10 VDC BETWEEN THE GREEN
AND BLACK WIRES.
0 VDC BETWEEN THE GREEN AND RED WIRES.
WHEN THE SQ3 SWITCH IS CLOSED,
ARE THE FOLLOWING VOLTAGE
READINGS PRESENT?
10 VDC BETWEEN THE GREEN
AND RED WIRES. 0 VDC
BETWEEN THE GREEN
AND BLACK
WIRES.
NO
1
YES
THE WE-6 DISPLAY READS
“CLOSE DOOR.”
CHECK THE WIRING BETWEEN THE
INTERFACE BOARD ANDTHE SQ3
SWITCH. REPAIR/REPLACE THE WIRING.
IF THE WIRING IS INTACT, REPLACE THE
SQ3 SWITCH.
CHECK THE RIBBON CABLE BETWEEN
THE COMPUTER AND THE INTERFACE
BOARD. IF THE RIBBON CABLE IS
INTACT, REPLACE THE INTERFACE
BOARD.
2
PHM2077S
Door Lock Switch Analysis
Symptom: The WE-6 Display Reads “Close Door”
