Troubleshooting Tables
Troubleshooting Tables (Commercial Electronic and Retail Electronic Units)
Page 8-6
MDE-4334C Atlas Start-up and Service Manual · April 2008
Table 3: Electronic Displays, Electric Reset and Calibration
Service Proc
edu
re (
P
oo
r)
Meter
Met
er Check
V
alve
Puls
er
Cab
le-C
a
ble C
onn
ectio
n
Co
il, Solen
o
id
V
alv
e
Co
nt
acto
r/Reset
Relay/Re
lay Boa
rd
Co
nt
ro
ller/Co
nsol
e
Co
nt
ro
ller Bo
ar
d
Disp
lay b
o
ard
Ju
mp
Jack Sett
ing
s
Mast
er Reset
Requ
ired
Misalig
nm
ent/Bind
ing
Mo
tors/B
elt
s/Pu
lleys
Power Sup
p
ly
, Main
Power to
Un
it Missin
g
Prog
ramm
ing,
Unit
Pum
p
In
terf
ace Bo
ar
d
Res
e
t Le
vers/S
p
ring
s
Res
et Mot
o
r/Gear Bo
x
Switch
/Power
, Pu
mp
Hand
le
T
e
mp
eratu
re L
o
w
(
unit
no
t w
a
rmed
up
)
V
alve Sole
noid
(Hy
d
raulic
s)
CPU B
o
ard
L
inkag
e or Mech
anical
Com
p
u
ter
CPU Switc
h
Setting
s
T
o
ta
lizer Bad
T
o
ta
lizer P
C
B
RA
M
Mech
anical
Com
p
u
ter Bad
Displays (Electronic)
7
9
10 13 14 20 41 50 52 55 66 68 77 83 85 86 96
98
46
Displays Don’t Come
On Immediately
C
D
A
Error Codes. See
Flickering Displays (all
boards)
A
D
B
C
C
C
D
Flickering displays (one
board)
A
A
Incorrect digit(s),
garbled display
A
B
A
B
C
B
Incorrect prices on
display boards
B
D
C
C
A
A
C
No backlight, both
boards
B
B
No backlight, one board
A
No display (all boards)
B
D
E
D
C
B
C
C
No display (some
boards)
A
D
A
C
B
Electronic Totalizers
Not Incrementing
A
C
B
B
B
C
Electric Reset
7
9
10 13 14 20 41 50 52 55 66 68 77 83 85 86 96
98
46
Handle won’t stay on/off
A
No reset
C
A
B
B
B
C
B
Reset motor runs, no
return to zero
B
B
B
B
C
Reset OK, valves/motor
not on
C
B
B
C
C
A
C
Resets continually
B
A
C
Calibration
Calibration does not
hold (repeat tests)
B
A
A
D
B
B
Calibration does not
hold (few months)
B
C
A
D
D
