GMC GCHD12, Manual

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GB
13
Problem Possible cause Solution
Red and green LEDs do not illuminate to indicate
the battery is correctly charging
Battery not correctly connected to charger
Clean battery socket of charger and battery
contacts and fully slide on to charger so it clicks in
a locked position
Charger not powered Recheck mains connection
Battery pack has low capacity
Battery not being fully charged Do not remove battery until a full charge is indicated
Battery pack has been charged over 100 times and
capacity has started to reduce
This is normal for battery packs. Contact your GMC
dealer to purchase a replacement battery pack
Drill cannot be switched on (Trigger Switch (7) does
not move)
The Forward/Reverse Switch may be in the middle
(‘locked’) position
Slide the Forward/Reverse Switch either to the left
or right
Drill does not start when Trigger Switch is depressed
Battery completely discharged
Recharge battery or replace with a fully charged
battery
Defective battery Replace battery
Tool defective
Contact your GMC dealer or authorised service
centre
Screws do not reach deep enough into the
workpiece
Not enough torque; torque clutch setting too low Choose a higher torque setting
Low battery voltage
Recharge battery or replace with a fully charged
battery
Screws are driven too deep into the workpiece
surface
Too much torque; torque clutch setting too high Choose a lower torque setting
Troubleshooting
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