Makita BFT041F Instruction Manual page 6

Status of the LED indicator/beeper
LED indicator
Lights up in
Green
Red
Blue
White in order
Lights up in green
for approximately
one second.
Blinks in purple
slowly.
Lights up in purple
Lights up in red and
green alternatively
Blinks in red quickly.
Blinks in red and
yellow alternatively.
011001
Beeper
Check LED, light and beeper
(when pulling switch trigger
A series of very
for the first time after
short beeps
installing a battery
cartridge into the tool)
Auto-stop fastening
A series of long Warning for battery
beeps cartridge capacity
Checking the remaining
A long beep
battery capacity, Autostop
Anti-reset of controller
A series of short
beeps
Failure of motor
A series of short
Overheat
beeps
Warning against
insufficient fastening
A long beep
Double-hitting detection
Function
Make sure that green, red,
blue, white LED lights up
and beeper beeps properly
This function works when
the tool has reached the
preset fastening torque
and normal tightening
has been completed.
This helps overtightening
to be avoided.
This indicates the
appropriate time to replace
the battery cartridge when
the battery power
becomes low.
This function works when
the battery power is
almost used up.
At this time, tool stops
immediately.
This function works when
an abnormal drop of the
battery voltage occurs for
some reason, and the tool
stops.
This function works
when motor fails.
This function works when
the temperature of the
controller or motor goes
up very highly, and the
tool stops.
Fastening is imcomplete
when switch trigger of tool
is released before clutch
activation.
This function works
when a screw is
refastened after fastening.
6
Status Action to be taken
Replace the battery
with fully charged one.
Replace the battery
with fully charged one.
Replace the battery
with fully charged one.
Take it to a Makita
Authorized Service
centers.
Remove the battery
cartridge immediately
and cool the tool down.