Johnson Horizon Fitness 7.0AT-04, Service Manual

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CHAPTER 5: TROUBLESHOOTING
5.5 NO FUNCTION FOR SAFETY KEY
SOLUTION:
A. Check if the safety key is totally inserted into the console.
- If not, remove and insert again.
B. Check if the safety key is oxidized or its condition does not affect its function.
- If yes, try cleaning it or replace it.
C. If the safety key is functional, check the safety key sensor wires in console.
- Suggest to re-connect the wires or to change new wires.