Precor C954i Service Manual download pdf (Page 35)

C954, C956 Treadmill

Page 35

14. If the resistance readings in step 13 are normal, replace the lower PCA per Procedure 6.3.

15. If you have performed all of the procedures above and have been unable to correct the

problem, call Precor customer service.

16. Set the treadmills circuit breaker in the “off” position and remove the AC line cord from the

AC outlet. Remove the lift motor connector from the J7 connector on the lower PCA. Visually

inspect the lift motor connector for broken or improperly crimped connections. Using an

ohmmeter, measure between terminals 1 & 3, 1 & 2 and 2 & 3 of the lift motor connector.

Terminals 1 and 3 should read approximately 1 KΩ. The sum of the two readings between

terminals 2 & 3 and 1 & 2 should total approximately 1 KΩ. If either reading is open or very

high resistance, replace the lift motor per Procedure 6.1.

17. If the resistance measurements in step 16 are normal, the problem may be either the lower

PCA or the upper PCA. Replace the lower PCA. If the problem persists, reinstall the original

lower PCA and replace the upper PCA.

If you have performed all of the procedures above and have been unable to correct the

problem, call Precor customer service.

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Precor C954i Service Manual Page 35