Garmin Forerunner 305 Owner's Manual - Page 64

Appendix Heart Rate Monitor Troubleshooting If you have trouble pairing with the heart rate monitor, or if your heart rate readings are erratic, try the following suggestions. • Position the Forerunner within 3 meters of the sensor while pairing. • Stay far away from any other sensors while pairing. • Move away from sources of interference (see the previous page). • Restart scan if your Forerunner appears to be paired with another sensor (see page 46). • Make sure scanning for the heart rate monitor is enabled (see page 46). 60 • Replace the battery. • Clean the sensors. Dirt and sweat build-up on the sensors can weaken 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. Forerunner® 205/305 Owner's Manual