Ac Input Power Troubleshooting - Precor Precision 400 Series Service Manual

AC Input Power Troubleshooting

Information to hellp troubleshoot and repair
Precor consumer treadmills must be connected to a individual branch circuit. A 15-amp indi-
vidual branch circuit is required, but a 20-ampindividual branch circuit is recommended, see
"Power Requirements" on
the plug. No adapter should be used with this product.
A treadmill operating from a non-dedicated circuit or a circuit breaker of less than 15 amps
capacity will not have the necessary power to operate normally under higher load con-
ditions. The lack of available power can cause any number of symptoms ranging from
numerous intermittent (seemingly inexplicable) error conditions, poor speed control, or trip-
ping the house circuit breaker.
If any of the above symptoms exist, the external A.C. circuit must be checked and confirmed
to be a 15-amp dedicated circuit before troubleshooting the treadmill.
WARNING: Corrective actions should only be performed by a licensed elec-
trician. Electrical shock could cause personel injury.
Probable Causes
The most common problems found are:
The circuit breaker is less than 15-amp capacity (minimum).
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The outlet circuit wiring is not a dedicated branch circuit (the circuit has shared neutral
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wires or hot power wires).
The power circuit wire length from the circuit breaker panel to the outlet receptacle is
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to long causing a drop in delivered outlet power.
The power circuit wire gauge is smaller than required to carry the necessary 15-amp
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load current causing a drop in delivered outlet power
Multiple treadmills plugged into the same outlet receptacle.
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NOTE: Corrective actions should only be performed by a licensed electrician.
See Also
1
Alternating Current: electric current which periodically reverses direction between positive
and negative polarity.
Contact Precor Customer Support at support@precor.com or 800.786.8404 with
any questions.
1
AC
page 14. The power outlet must have the same configuration as
System Troubleshooting Procedures
. input power issues.
7 Troubleshooting
Page 103