AUXILIARY SWITCH OPEN

Possible Causes

• •All inputs on main shaft auxiliary switches are open
• •Controller cannot determine the transfer switch position
• •Transfer switch in intermediate position

Suggested Actions

1. 1Check the control contact operation
2. 2Check the control contact operation.
3. 3Check wiring and connections to position microswitches.
4. 4Check wiring and connections to position microswitches. See schematic drawing for connections
5. 5Inspect for signs of coil damage or overheating and replace coil if necessary
6. 6Inspect for signs of coil damage or overheating and replace coil if necessary.
7. 7Manually operate the transfer switch, following safety precautions and instructions for your model
8. 8Manually operate the transfer switch, following safety precautions and instructions for your model.
9. 9Replace microswitch if necessary.
10. 10Test position microswitch operation.
11. 11Test position microswitch operation. Replace microswitch if necessary

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