Kohler APM402, Operation

Page: 119 / 172

TP-6694 9/20 119
4.2 Controller Display and Voltage Regulation Troubleshooting Chart
S
e
c
ti
on
or
P
u
bl
ic
a
ti
on
R
e
fe
re
nce
*
C
ontr
ol
le
r
D
is
p
la
y
a
n
d
V
ol
ta
ge
R
e
gul
a
tor
S
e
e
t
h
e
S
e
c
tion
t
it
led
:
B
a
tt
e
ry
S
e
e
t
h
e
S
e
c
tion
t
it
led
:
B
a
tt
e
ry
S
e
e
t
h
e
S
e
c
tion
t
it
led
:
E
rr
o
r
Mes
s
a
g
e
s
S
e
e
t
h
e
S
e
c
tion
t
it
led
:
B
a
tt
e
ry
Ge
n
e
ra
to
r
S
e
rv
ic
e
Man
u
a
l
S
e
e
t
h
e
S
e
c
tion
t
it
led
:
V
o
lt
a
g
e
R
e
g
u
lat
o
r
A
d
ju
s
tmen
ts
S
it
e
Tec
h
O/
M
S
e
e
t
h
e
S
e
c
tion
t
it
led
:
D
igit
a
l
D
is
p
la
y
S
it
e
Te
c
h
O/
M
*
S
e
c
./
S
e
c
tion
—
n
u
mbe
re
d
s
e
c
tio
n
o
f
th
is
man
u
a
l;
A
T
S
—
A
u
to
ma
tic
Tr
a
n
s
fe
r
S
w
it
c
h
;
E
n
g
.—
E
n
g
ine
;
G
e
n
.—
Ge
n
e
ra
to
r
S
e
t;
A
lt
.—
A
lt
e
rn
a
to
r;
I
/M
—
In
s
ta
lla
tion
Man
u
a
l;
O
/M
—
Op
e
ra
tion
Man
u
a
l;
S
/M
—
S
e
rv
ic
e
Man
u
a
l;
S
/S
—
S
p
e
c
S
h
e
e
t;
O
/S
/M
—
Op
e
ra
tion
/S
e
rv
ic
e
Man
u
a
l;
W
/D
—
W
irin
g
D
iag
ra
m
†
H
av
e
an
a
ut
ho
riz
ed
s
er
vi
ce
d
is
tr
ib
ut
or
/d
ea
ler
p
er
fo
rm
th
is
s
er
vi
ce
.
R
e
c
om
m
e
nded
A
c
ti
ons
R
e
c
h
a
rg
e
/r
e
p
lac
e
b
a
tt
e
ry
.
R
e
c
h
a
rg
e
b
a
tt
e
ry
.
R
e
v
iew
t
h
e
E
rr
o
r
Me
s
s
a
g
e
s
e
c
tion
.
R
e
c
h
a
rg
e
/r
e
p
lac
e
b
a
tt
e
ry
.
Tr
ou
bles
ho
ot
a
lte
rn
at
or
c
ompo
ne
nt
s.
†
R
ea
djus
t v
ol
ta
ge
r
eg
ulat
ion
. †
E
n
a
b
le
c
a
lib
ra
tion
in
Ge
n
e
ra
to
r
M
e
te
ring
s
e
c
tion
.
V
o
lt
s
e
le
c
t
n
o
t
e
n
a
b
led
P
robab
le
C
a
use
s
N
o
/low
b
a
tt
e
ry
c
h
a
rg
e
.
L
o
w
b
a
tt
e
ry
v
o
lt
a
g
e
.
C
o
n
tr
o
lle
r
firmw
a
re
f
a
u
lt
h
a
s
o
c
c
u
rr
e
d
o
r
p
u
s
h
b
u
tt
o
n
/
ro
ta
ry
s
e
lec
to
r
d
ial
e
n
tr
y
e
rr
o
r.
N
o
/low
b
a
tt
e
ry
c
h
a
rg
e
.
D
e
fe
c
ti
v
e
e
x
c
it
e
r
w
ind
ing
.
V
o
lt
a
g
e
r
e
g
u
lat
ion
c
a
lib
ra
tion
inc
o
rr
e
c
t.
C
a
lib
ra
tion
n
o
t
e
n
a
b
led
.
V
o
lt
s
e
le
c
t
n
o
t
e
n
a
b
led
Troub
le
S
y
m
pt
om
s
D
is
p
lay
i
s
b
la
c
k
.
D
is
p
lay
s
h
o
w
s
s
ing
le
s
e
g
men
t.
D
is
p
lay
s
h
o
w
s
a
n
e
rr
o
r
mes
s
a
g
e
.
D
is
p
lay
lo
c
k
s
u
p
.
Ou
tp
u
t
v
o
lt
a
g
e
r
a
mp
s
Ou
tp
u
t
v
o
lt
a
g
e
u
n
s
ta
b
le.
U
n
a
b
le
to
c
h
a
n
g
e
v
o
lt
a
g
e
a
n
d
c
u
rr
e
n
t
c
a
lib
ra
tion
s
U
n
a
b
le
to
f
ind
v
o
lt
s
e
lec
t
men
u