Troubleshooting Guide
17
Pr
oblem
Led fails t
o ligh
t up
Lo
w output fr
om devic
e
LED func
tion nor
mal but no
po
w
er output
D
evic
e swit
ches off pr
ema
tur
ely
Led ligh
ts up w
eak
ly
Cause
No ba
tt
er
y in the devic
e
or ba
tt
er
y dead
Ba
tt
er
y not inser
tedc
or
rec
tly
D
evic
e not swit
ched on
Insula
ting film has not be r
emo
ved
Elec
tr
ode pad dir
ty
D
evic
e not applied pr
oper
ly
Ba
tt
er
y dead
Elec
tr
ode pad dir
ty or
shor
t-
cir
cuit
ed
Ba
tt
er
y dead
Elec
tr
ode pad w
or
n out or dir
ty
D
evic
e not applied pr
oper
ly
Replac
e ba
tt
er
y
Inser
t Ba
tt
er
y again (+up
)
Swit
ch devic
e on
Remo
ve insula
ting film fr
om
bet
w
een ba
tt
er
y and devic
e
Clean/r
eplac
e elec
tr
ode pad
Re
-apply D
evic
e
Replac
e ba
tt
er
y
Check elec
tr
ode pads
and r
eplac
e if nec
essar
y
Replac
e ba
tt
er
y
Check elec
tr
ode pads
and r
eplac
e if nec
essar
y
Re
-apply devic
e
Ba
tt
er
y lo
w
Remedy
Replac
e ba
tt
er
y