Horizon Fitness E51 Service Manual page 20

Erratic or Continuous Resistance Change
Possible causes:
1. Incorrect adapter voltage (see Power Supply Voltage Check on pg.
35).
2. Tension cable is not connected properly to the tension knob (Manual
Resistance).
3. Tension cable is not connected properly to the brake (all models).
4. Tension cable is binding or is crimped (Manual Resistance).
5. Tension cable is defective (Manual Resistance).
6. Zero switch is not positioned properly (Programmable Resistance).
7. Defective IC board (Programmable Resistance).
8. Defective console cable (Programmable Resistance).
9. Defective console (Programmable Resistance).
Fix:
1. Remove tension knob from the console mast. Verify that the copper
cable from the tension knob is seated properly in the keyhole located
on the tension cable (Manual Resistance).
2. Remove the side covers and verify that the tension cable is connected
securely to the brake (all models).
3. Remove side covers and inspect for any binding or crimping in the
tension cable. Keep in mind that the tension cable has an outer plastic
sleeve with a small wire running internally. If the small internal wire
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