Troubleshooting Display Does Not Illuminate; Procedure - Precor Energy Series Service Manual

Troubleshooting Display Does Not Illuminate

The console display will not illuminate (light up).

Procedure

1. Set the on/off switch in the "off" position and insert the AC power cord into a 120 VAC outlet.
2. The on/off switch should illuminate. If the on/off switch illuminates skip to step 6. If the on/off
switch does not illuminate continue with the next step.
3. 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
with the facility AC input power (have an electrician fix the power).
4. If the facility AC input power is correct, plug in the AC power cord in the AC outlet and
measure the voltage between the two lower terminals of the on/off switch (black and white
wires). The voltage should read between 105 and 120 VAC.
a. If the voltage is not correct, the problem is in the AC power cord. Replace the AC power
cord.
b. If the AC voltage was correct, replace the on/off switch.
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.
6. Remove the treadmill 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. Check that the POWER LED on the lower PCA is illuminated.
a. If it is illuminated, skip the next step.
b. If it is not illuminated continue with the next step.
8. With an AC voltmeter, measure the voltage between the two upper terminals of the on/off
switch (red and red-black wires). The voltage should read between 105 and 120 VAC.
a. If the voltage is not correct, the problem is in the on/off switch. Replace the on/off switch.
9. Measure the on/off switch AC voltage between the red-black wire to each of the red wires on
the circuit breaker. Both measurements should read between 105 and 120 VAC.
a. If the voltages are not correct, press the circuit breaker reset button and repeat the on/off
switch AC voltage measurement. If the measured voltage remains not correct, replace the
circuit breaker.
10. Test the safety key circuit. If the safety key circuit is functioning correctly, continue with next
step.
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