Precor Energy Series Service Manual page 37

Set the treadmill's circuit breaker in the "OFF" position and remove the AC line cord from the
2.
AC outlet.
3. Remove the F2 (Lift AC) fuse from the Lower PCA. Using an ohmmeter, check the resistance of
the F2 fuse. See Diagram 5.2. The fuse should measure approximately 0.1  or less. If the
fuse is open or high resistance, replace the fuse.
Diagram 5.2 - Lower PCA
Insert the treadmill's line in the AC outlet and set the circuit breaker in the "ON" position. Set
4.
the treadmill in the manual program and press the LIFT
normally, test treadmill operation per Section 3. If the lift motor still does not operate, retest the
lift fuse per steps 2 & 3. If the fuse is open again, continue with step 13. If the fuse is good
continue with step 5.
5. Connect an AC voltmeter between terminals 1 & 4 of the JK4 connector. See Diagram 5.2.
Set the treadmill in the manual program and press the LIFT
read AC line voltage (120 Vac) and the red UP LED should illuminate. Note that the
AC line voltage reading will only be present before an error condition is displayed.
6. If the F2 fuse is good and the UP LED illuminates and the AC voltmeter does not read the
presence of AC line voltage replace the lower logic PCA per Procedure 6.3.
7. If the UP LED does not illuminate and the display indicates that the lift should be moving
upward, replace the Upper PCA per Procedure 6.8.
8. If the AC voltmeter reads the presence of AC line voltage and an error 40 is displayed, go to
step 10.
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key. If the lift motor operates
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key. The AC voltmeter should
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