Stanley QB Expert User Manual

QB Expert Alpha Controller
182
Diagnostics and Troubleshooting
Fault Possible Cause Probable Solution
Major Consideration
That Led to Solution
To Clear/Reset from
Fault Condition
GFI Fault!
Defective tool,
cable, or controller
Replace defective
tool, cable, or
controller
Exchanging
known good
tools controllers
and cables can
determine which
caused a failure
Replace defective
tool, cable, or
controller.
If the controller
is found to be
defective, return to
STANLEY Assembly
Technologies for
repair.
If the tool is
found to be
defective, repair
it by replacing the
motor.
Defective Tool
Replace defective
tool
Use an ohmmeter
or the motor tester
to check:
Phase-to-phase
values; they should
be equal.
Phase-to-ground;
they should be >2
Megohms.
Replace defective
tool
Logic Voltage Fault!
Insufficient AC
input power
Repair incoming
power system
Use a voltmeter
to test for proper
voltage WHILE the
tool is running.
Check for proper
grounding at the
receptacle.
Repair incoming
power system
Defective triple
power supply or
logic board inside
controller
Return controller
for repair
Logic Voltage Fault!
appears on display
Return for repair

Stanley QB Expert Specifications

General

Brand	Stanley
Model	QB Expert
Category	Controller
Language	English