Graco ProMix PD2K Repair Parts page 17

Mix Errors
Code Type Description
F7S1 Alarm Flow
Detected
Solvent Gun
F7S2 Alarm Flow
Detected
Solvent Mix
QPD1 Alarm, Potlife
then Expired
Devia-
tion
Devia-
QP## Potlife
tion Expired
Recipe ##
Alarm Mix Fill
SND1
Incomplete
332709D
Problem
The solvent flow switch
is indicating unexpected
solvent flow.
The solvent flow switches
indicate that both are
flowing solvent at the
same time.
*This only applies to
systems with mix-at-wall.
Potlife time has expired
before the system has
moved the required
amount of material
(potlife volume) through
the mixed material line.
Potlife time has expired
before the system has
moved the required
amount of material
(potlife volume) through
the mixed material line in
an inactive gun loaded
with recipe ##.
*This only applies to
systems with multiple
guns.
The system timed out
before the mix fill cycle
loaded the gun with
mixed material.
Cause
Solvent flow switch is
stuck in flow position.
There is a leak through
the solvent cutoff valve.
One or both solvent flow
switches are stuck in flow
position.
There is a leak through
one or both of the solvent
cutoff valves.
Purge process was not
completed.
Solvent supply shut off or
empty.
An inactive gun has
mixed material for recipe
## loaded and has
not dispensed enough
material in the required
amount of time.
Mix manifold not set to
spray position.
Spray gun was not
triggered.
Restrictions in mixer,
manifold, or spray gun.
Troubleshooting
Solution
Clean or replace switch.
Check for leaks and
repair valve.
Clean or replace the
switch(es).
Check for leaks and
repair valve(s).
Make sure purge process
is completed.
Verify solvent supply is
available and on, supply
valves are open.
Purge the inactive gun.
Set manifold to spray.
Allow flow through gun
during fill process until
the fill complete LED
stops flashing.
Fix restrictions.
17