![background image](/i/vdo/24515/vdo-hc126/h/vdo-hc126-034.png)
14. Troubleshooting
This chart outlines possible malfunctions, their causes and removal.
malfunctions
most likely cause
removal solutions
irregular LCD readout (i.e. after battery change)
computer software is not running smoothly
press AC-button at the rear of computer head
to reset
no speed display
check for proper distance between sensor
readjust sensor and magnet
and magnet
cable from sensor to computerhead broken
check cable and replace if necessary
computerhead is incorrectly twisted onto
place computerhead on handlebar holder
handlebarholder
and twist until detent (CLICK)
no wheelsize value entered
enter wheelsize number
display fades or disappears
battery in computer empty
check battery and replace if necessary.
temperatures below -15
°
C (40
°
F) dull
Back in normal temperatures, display
display readout
picks up working correctly.
no pulse display
computer in sleep-mode, receiver not activated press any button to activate receiver
chestbelt battery empty
check battery and replace if necessary.
chestbelt electrodes not moistened
moisten the electrodes with water or saliva
distance from computer to chestbelt is too big
reduce distance
no average pulse display -
stopwatch not running, stopwatch
start stopwatch or take off manual halt
no time display for training zones
manually arrested
GB
HC
12.6
16