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RCX3
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FAQs

Troubleshooting RCX3 sensors

Try these troubleshooting instructions if your Polar training computer or sensor is not working as it should.

If the issue persists, please contact your closest Polar Service.

Troubleshooting heart rate signal reception

1. Are you wearing the heart rate sensor correctly?
The heart rate sensor should be worn flat against the skin, Polar logo in upright position. See example here.

If the training computer still cannot find your heart rate signal, try
a. take the sensor off your chest and detach it from the strap
b. wait for 30 seconds
c. snap the sensor back onto the strap and put the strap back onto your chest
d. try if the signal is found now.

2. Are the heart rate sensor electrodes thoroughly wet? See example here.

3. Is the heart rate sensor and the elastic strap clean?
Read more on Maintenance of heart rate sensor with textile strap .

4. Did the heart rate sensor you're using come in the RCX3 set?
If yes, check that you've paired the sensor with the training computer.
If not, check that the sensor is compatible with your training computer?

RCX3 uses both W.I.N.D. and GymLink transmission. See here for compatibility with other heart rate sensors.

5. Are the heart rate signals unusually high or otherwise abnormal?
Relocating the training computer or adjusting the heart rate sensor on your body may help. Possible sources of disturbance are listed here.

6. Is it time to change the battery?
Check that you've changed the RCX3 battery according to instructions. Please contact authorized Polar service if you need assistance.

7. Were you swimming when you got reading drop outs?
You can swim with your RCX3 but it won't measure your heart rate in water. Read more about swimming with Polar RCX3.

8. Is the display frozen?
If the display freezes, try resetting it To reset, press all side buttons down simultaneously for two seconds until the display goes blank. Then press any button, select language and set the time and date. The rest of the settings are the same as before reset. Press and hold the BACK button and you're ready to use the product again..

Troubleshooting cycling speed signal reception

RCX3 is compatible with CS speed sensor W.I.N.D.

1. Have you paired the sensor with the training computer?
2. Does the light flash in the sensor when the speed magnet passes it? The light indicates that the speed sensor is positioned correctly and that the sensor is alive. For more on positioning, see CS speed sensor W.I.N.D. user manual or installation video.

CS speed sensor W.I.N.D. transmission range is approx. 10m / 32ft.

Troubleshooting cycling cadence signal reception

RCX3 is compatible with CS cadence sensorâ„¢ W.I.N.D.?

1. Have you paired the sensor with the training computer?
2. Does a light flash in the sensor when the cadence magnet passes it? The light indicates that the cadence sensor is positioned correctly and that the sensor is alive. For more on positioning, see CS cadence sensor W.I.N.D. user manual or installation video.

CS cadence sensor W.I.N.D. transmission range is approx. 10m / 32ft.

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