Garmin Forerunner 301 Owner's Manual - Page 53

Troubleshooting Tips If you have trouble pairing, or if your heart rate reading is erratic, try the following suggestions. • Clean the sensors on the heart rate monitor. Dirt and sweat build-up on the sensors can weaken heart rate signals. • Reapply moisture. Use electrode gel, water, or saliva. • Make sure the heart rate monitor is snug against your body. If you have trouble with erratic readings, position the transmitter on your back. • Wear a cotton shirt, or wet your shirt. Synthetic fabrics that rub or flap against the heart rate monitor can create static electricity that interferes with heart rate signals. APPENDIX > HEART RATE MONITOR INFORMATION • Make sure the Forerunner is within 90-110 cm (35-43 in.) of the heart rate monitor. • Reset the heart rate monitor as described on page 38 or turn the Forerunner off and then on again. • Locate and move away from sources of interference (see the previous page). • Replace the heart rate monitor battery (if you have used the heart rate monitor for a few months). Forerunner® 301 Owner's Manual 49