Horizon Fitness E51 Service Manual page 19

Possible causes:
1. Tension cable is not connected to tension knob (Manual Resistance).
2. Tension cable is not connected to the brake (all models).
3. Tension cable is defective (Manual Resistance).
4. IC board is defective (Programmable Resistance).
5. Servomotor is defective (Programmable Resistance).
6. Console cable is defective (Programmable Resistance).
7. Console is defective (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
to the brake (all models).
3. If problem persists, replace the tension cable (Manual Resistance).
4. Check voltages of console cable (see console cable voltage chart in
table of contents) to verify proper function of photo sensor board,
servomotor, and console cable. Replace parts if defective
(Programmable Resistance).
5. If problem persists, replace the console (Programmable Resistance).
19
No Resistance Change