Procedure 5.4 - The Display Does Not Illuminate - Precor 9.23 Service Manual

Procedure 5.4 - The Display does not Illuminate

1. Set the on/off switch in the "off" position and insert the AC power cord into a 120 Vac outlet.
The on/off switch should illuminate. If the on/off switch illuminates skip to step 5. If the on/off
switch does not illuminate continue with step 2.
2. Remove the AC power cord from the AC outlet, and check the AC outlet with an AC
voltmeter. The meter should read between 105 and 120 Vac. If the reading is not correct, the
problem is in the AC service.
3. If the reading in step 2 was correct, reinsert the AC power cord in the AC outlet and
measure between the two lower terminals of the on/off switch (black and white wires). The
meter should read between 105 and 120 Vac. If the reading is not correct, the problem is in
the AC power cord. Replace the AC power cord.
4. If the reading in step 3 was correct, replace the on/off switch per Procedure 6.7.
5. Ensure that the safety key magnet is operating the reed switch in the console. If the reed
switch is not activated the display will not illuminate. See Procedure 5.5.
6. Remove the treadmill's hood. Set the on/off switch in the "on" position. Set the safety key in
its mounting position on the console. If the safety switch is not in its proper operating
position or if the safety switch is not functioning, the display will not illuminate.
7. Referring to Diagram 5.2, check that the POWER LED on the lower PCA is illuminated. If it
is illuminated, skip to step 12. If it is not illuminated continue with step 8.
8. With an AC voltmeter, measure between the two upper terminals of the on/off switch (red
and red-black wires). The meter should read between 105 and 120 Vac. If the reading is not
correct, the problem is in the on/off switch. Replace the on/off switch per Procedure 6.7.
9. With an AC voltmeter, measure between the red-black wire on the on/off switch to each of
the red wires on the circuit breaker. Refer to Diagram 5.5. Both readings should read
between 105 and 120 Vac.
9.23, 9.27 Treadmill
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