Console LEDs Are Not Constant on LifeFitness 90C,90CW Bikes

Probable Cause

1. Pedaling to slowly
2. Insufficient battery voltage
3. Loose wire connections
4. Worn or damaged wire harnesses
5. Malfunctioning Display Console
6. Malfunctioning Alternator Control Board
7. Malfunctioning Alternator

Corrective Action

1. Pedal faster than 35 RPM.
2. Check the battery voltage.
   1. 9VDC alkaline battery and it should test at a minimum of 9.0 VDC.
   2. Replace the battery if it fails to meet minimum requirements.
3. Disconnect then reconnect connections.
4. Inspect wire harnesses. Replace worn or damaged harnesses.
5. Test with substitute Display Console. Replace malfunctioning Display Console.
6. Test with substitute Alternator Control Board. Replace malfunctioning board.
7. Test Alternator output or, test with substitute Alternator.
   1. Alternator Voltage Test:
      1. Attach DC voltmeter to Alternator.
         1. Voltmeter positive (+) probe to Alternator red lead.
         2. Voltmeter negative (-) lead to Alternator black lead.
      2. Maintain pedal speed greater than 45 RPM.
      3. Press START key.
         1. Alternator Voltage Specification: 9 - 11 VDC when pedal speed greater than 45 RPM.
         2. Replace malfunctioning Alternator.