![](https://pdfstore-manualsonline.prod.a.ki/pdfasset/e/3e/e3ef28d4-0abc-45f6-8276-fb1f4c33e9f4/e3ef28d4-0abc-45f6-8276-fb1f4c33e9f4-bg9.png)
Symptom Probable Cause Corrective Action Recommended Tools
NO POLAR
HEART RATE
500R, 500U
Control Panel
Heart Rate Chest
Strap
External
Interference
• Attach a known good heart rate
transmitter around chest or use polar
simulator.
• If control panel does not display a heart
rate – replace Control Panel.
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• If heart rate registers with use of HR
simulator but not chest strap – replace
chest strap.
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• If erroneous readings continue, check
for and eliminate external interference.
• Locate RF sources and use process of
elimination. Common sources of RF
interference are: Invisible fences for
pets; wireless networks; cordless
phones, Cell phones, radios, home
security sensors, etc.
Heart Rate Simulator
Support Services 800-883-8783 Mon-Fri 8:30am-5:00pm Central Time Zone Fax: 636-272-7148
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