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The drill stops early or gives far less runtime than expected without unusual heat.
The battery stays physically latched, but the motor, LED, or both cut out and return when the tool or battery is moved through ordinary working orientation.
The chuck jaws open and close normally, but a straight compatible bit rotates or pulls out during moderate drilling or driving.
The chuck still rotates, but a new mechanical grind, knock, scrape, tight spot, or severe vibration remains with the bit removed and is not ordinary motor or brake sound.
The direction selector is centered, but the trigger still depresses enough to start the motor or the center position cannot reliably prevent activation.
The collar moves and holds a low numbered setting, but the clutch does not ratchet before a test fastener is overdriven in suitable scrap material.
A compatible V20 battery starts onto the tool rails but binds before reaching the normal seated and latched position.
The direction selector moves and holds normal detents, but the chuck fails to run in one direction or rotates opposite the selected arrow.
The motor can be heard, but the front output remains still in both directions with the bit removed.
With the battery removed, the clutch collar is physically stuck, cracked, excessively loose, or unable to align a numbered setting or drill mode with the index mark.
With the chuck stopped and battery removed, the top selector cannot be moved fully into range 1 or range 2, even after the chuck is turned by hand to align the gears.
THE DRILL/DRIVER WILL NOT START WITH A VERIFIED BATTERY
With the battery removed and the chuck empty, turning the sleeve rotates the spindle and motor freely instead of providing enough lock to tighten or loosen the chuck by hand.
The collar moves normally, but the clutch ratchets before a suitable fastener reaches normal depth at appropriate settings, or it audibly slips when drill mode is correctly selected.
The motor can be heard running, but the chuck remains still, pauses independently, or free-spins without transmitting normal drive in either fully selected speed range.
A sound V20 battery is fully seated, the direction button is fully forward or reverse, and the tool gives no motor sound, LED response, or chuck motion. The dead state persists when the tool is held still.
The drill sounds and rotates normally with no load, does not stall, overheat, slip, or vibrate abnormally, yet a corrected drilling or fastening task progresses much more slowly than expected.
With the battery removed, the keyless chuck sleeve or jaws remain seized, or a clamped bit cannot be released by normal hand rotation.
The trigger returns normally and power drops, but the anvil repeatedly coasts instead of stopping promptly.
THE BATTERY WILL NOT SEAT, LATCH, RELEASE, OR STAY SECURE
FM-21: THE CLUTCH RELEASES TOO EARLY OR SLIPS IN DRILL MODE
FM-02: THE BATTERY WILL NOT SLIDE FULLY INTO THE TOOL RAILS
FM-27: THE TOOL HAS NEW GRINDING, KNOCKING, BINDING, OR SEVERE VIBRATION
FM-22: THE CHUCK WILL NOT OPEN OR CLOSE BY HAND, OR A BIT CANNOT BE RELEASED
FM-19: THE MODE/TORQUE COLLAR WILL NOT TURN OR ALIGN
FM-20: THE CLUTCH NEVER RELEASES AND OVERDRIVES FASTENERS AT LOW SETTINGS
FM-24: THE AUTOMATIC SPINDLE LOCK DOES NOT HOLD THE CHUCK
FM-16: THE CENTER LOCK DOES NOT BLOCK THE TRIGGER
FM-01: THE DRILL/DRIVER WILL NOT START WITH A VERIFIED BATTERY
FM-25: THE CHUCK OR BIT WOBBLES VISIBLY AT NO LOAD
FM-26: THE MOTOR RUNS BUT THE CHUCK DOES NOT TURN OR LOSES DRIVE
FM-06: POWER CUTS OUT WHEN THE TOOL OR BATTERY IS MOVED
FM-17: THE TWO-SPEED SELECTOR WILL NOT MOVE BETWEEN RANGES
FM-05: THE KIT BATTERY WILL NOT BEGIN OR COMPLETE CHARGING
FM-23: THE BIT SLIPS OR PULLS OUT OF THE CHUCK
FM-15: THE TOOL RUNS ONLY ONE DIRECTION OR OPPOSITE THE SELECTION
FM-28: DRILLING OR FASTENING IS SLOW DESPITE NORMAL NO-LOAD OPERATION
FM-04: FM-04 DRILL CUTS OUT WHILE COOL
FM-16: FM-16 BIT WILL NOT RELEASE, OR A SHORT OR BROKEN BIT IS TRAPPED
FM-15: FM-15 BATTERY LOSES CHARGE RAPIDLY WHILE STORED DISCONNECTED
Drill bit
Approved V20 charger
A straight round-shank drill bit
An approved battery charger
Driver bit or bit holder
Mode or torque collar
Gloves
Damaged-lithium recycling route
Charger and indicator
On-board bit holder
Variable-speed trigger
A compatible 12V MAX* battery pack
workpiece
Cool known-good Bosch 18V battery
Half-inch impact socket
Correct impact bit
Impact socket