Graco ProMix PD2K Repair Parts page 20

Troubleshooting
Type Description
Code
F1F# Alarm Flow Low Fill
Pump #
F1S# Alarm Flow Low
Purge Pump
#
F7D# Alarm Flow
Detected
Pump #
F8D1 Alarm Flow Not
Detected
F9D# Alarm Flow
Unstable
Pump #
20
Problem
There has been no flow
or low flow during a pump
fill operation.
There has been no flow
or low flow during a pump
purge operation.
The pump flow exceeded
20 cc/min flow coming
into Idle mode.
No flow while mixing.
The pump flow rate
did not stabilize while
entering Idle mode.
Cause
There is a restriction on
the outlet side of the
pump or color stack.
Thick viscosity paint
requires more pressure
to pump.
The pumps do not have
to move for the system to
build enough pressure to
meet the setpoint.
Restriction in the outlet
side of the pump or color
stack resulting in the
solvent flow being too
low.
There is a leak in the
system or the gun was
open when the system
went into Idle mode.
Restriction in the outlet
side of the pump or color
stack.
Potential leak in the
system.
Solution
Make sure there are no
restrictions in the color
stack and that the dump
valve is actuating.
Increase non-mix
pressure if necessary
to create flow during the
fill function.
Increase non-mix
pressure if necessary
to create flow during the
fill function.
Make sure there are
no restrictions in the
system. Increase
non-mix pressure if
necessary to create flow
during the purge function.
Verify there are no leaks
in the system. Make
sure the air flow switch
is actuating properly.
Do not trigger the gun
without atomizing air.
Make sure there are no
restrictions in the system.
Check the system for
leaks and run manual
stall test.
332709D