• Display is blank or shows partial digits: Change the battery or reset the computer (page 30).
• Speed/Distance is not recording: Check speed sensor/magnet alignment (page 5). Change bat-
tery on speed sensor and computer.
• Heart rate too high: Wet the contact area in the strap.
• Power reading too high: Reset calibration (page 17)
• If power reading still incorrect, contact power device manufacturer with calibration number (see page
14).
• Heart Rate and Power data is not showing: check device for ANT+ compatibility. Check or replace
batteries in transmitters. Check for proper magnet alignment with powermeter device. Re “PAIR”
devices (page 16)
• Computer moves on handlebar: tighten hinge bolt or tie straps. Check rubber spacer between
handlebar and mount.
•
Important:
• Pay attention to trafc and road condition at all times and always obey trafc laws. Your rst obliga-
tion is to be attentive and ride safely.
• Never let the operation of the computer distract from riding safely and avoid resetting, troubleshooting
or programming the computer while riding.
• Keep the computer and all of its components tightly attached and check them regularly. If any of the
components come loose, it could become tangled in the spokes or mechanism of the bicycle and
cause an accident.
• Speedzone computer is intended for use on bicycle only and should not be used on motorized
vehicles.
• See your authorized Specialized dealer if you have trouble installing or operating the computer.
Troubleshooting
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