Snap-On ControlTech Micro, User Instructions

Page: 26 / 36

25

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