Troubleshooting
Note: If any of following issues persist, return wrench to an authorized Snap-on repair center.
Issue
Possible Cause
Resolution
Wrench does not turn on when
POWER button pressed.
Dead/No batteries
Replace batteries
Software glitch
Cycle power using end-cap
Torque reading out of spec.
Calibration required
Recalibrate
Incorrect head length entered
Enter correct offset head length
Wrench did not retain settings while
batteries were removed.
Batteries removed before setting
were saved in non-volatile
memory.
Clear data, re-enter settings
and press and hold POWER
button to power down wrench
before removing batteries.
Low battery
Press ENTER button to continue
using wrench and replace
batteries soon.
Dead battery
Press POWER button to turn off
wrench and replace batteries.
Torque applied while zeroing
Remove torque and re-zero
Wrench over torqued
Recalibrate
Wrench improperly calibrated
Recalibrate
Torque sensor failure
Return to Factory
Wrench moving during zeroing
Place wrench on stable surface
Gyro unstable
Return to Factory
ENTER button pressed during
angle zeroing (Aborted zeroing to
access menus)
Press POWER button to re-zero
Over 125% of full scale torque
applied
Cycle power using POWER
button and recalibrate
Wrench rotated too fast during
angle measurement
Press POWER button to re-zero
Calibration interval exceeded or
invalid date entered with
calibration interval enabled
Calibrate wrench or press
ENTER to continue. Disable
calibration interval if not
required.
Memory error
Clear data memory
Torque uncalibrated
Calibrate torque
Angle uncalibrated
Calibrate angle
Summary of Contents for ControlTech CTLNK1R240
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