Graco 235531 Instructions Manual page 15

Problem
Will not count – pump is working,
ready light on.
Anti-freeze applications
Will not shut off – ready light on
Will not shut off – ready light on,
light shuts off when amount dis-
pensed is attained
Under-dispensing – (See page 13 to
verify meter accuracy.) y y )
Over-dispensing – (See page 13 to
verify meter accuracy.)
Console display – (––––) displayed
on console
Console display – (EEEE) displayed
on console
Console display – unit of measure
changes
Console display – keypad does not
work
Troubleshooting
Cause
Pulse meter failed
Wiring problem
Pulse meter converter failed
Console failed
Console failed (verify the the module
display shows the amount dis-
pensed)
Fluid solenoid is clogged or has
failed
No check valve installed before the
meter
Pulse meter failed
Installed a 215474 mechanical pulse
meter without using the 244342 con-
verter box
Console failed
Pump air motor pressure turned up
too high, aerating oil
Pulse meter failed
Console failed
Temporary loss of power to the sys-
tem
No dispense amount was entered
into the console prior to pressing the
Dispense button
Unit of measure was not pro-
grammed into the console
Ribbon cable between keypad and
back of console is loose internally
Solution
Swap pulse meter module with
known good module to determine if
problem is the pulse meter, wiring,
or control box
Verify the the pulse meter is
installed within 24" of the pulse me-
ter converter
Replace pulse meter converter
Replace console
Replace console
Clean or replace the solenoid
Install check valve prior to meter
Swap pulse meter with known good
module
Ensure the 244342 is installed per
instruction form 309276
Replace console
Dispense into calibrated container
and allow fluid to settle for a mini-
mum of 30 minutes. If volume is cor-
rect, turn air motor pressure down
and test again. Stop when over-dis-
pense problem is eliminated.
Swap pulse meter with known good
module
Replace console
After power is restored, enter pass-
word to bring up system. If pass-
word is not accepted. Refer to the
"Programming Security Code and
Changing Measurement Units" page
for instructions.
Ensure dispense amount is entered
prior to pressing the Dispense but-
ton
Refer to the "Programming Security
Code and Changing Measurement
Units" page for instructions.
Remove the four screws from the
cover of the console. Reseat the rib-
bon cable and retest.
308238 15