What to do if Life Fitness Music Mixer heart rate reading is erratic?
- CChristopher WolfAug 5, 2025
If the heart rate reading on your Life Fitness Music Mixer is erratic or absent, several factors could be the cause. First, ensure the belt transmitter electrodes are sufficiently wet. Refer to the section on the Optional Polar® Telemetry Heart Rate Chest Strap for details. Make sure the belt transmitter electrodes lay flat against your skin. Clean the belt transmitter with mild soap and water. The chest strap transmitter should be within 3 ft (0.9 m) of the heart rate receiver. If these steps don't resolve the issue, the Polar® telemetry heart rate chest strap battery may be depleted. Additionally, ensure the Polar® telemetry heart rate chest strap is properly attached and within range of the receiver, allowing up to 10 seconds for the heart rate to display.