Graco ProMix PD2K Repair Parts Manual page 19

Code Type Description
P6D# Alarm Press.
Sens.
Removed
Outlet #
P9D# Alarm Press.
Sens.
Failed
Outlet #
P9F# Alarm Press.
Sens.
Failed Inlet
#
QADX Alarm Differential
Pressure A
Over B
QBDX Alarm Differential
Pressure B
Over A
QPD1 Deviation Potlife
Expired
3A2800B
Problem
Outlet pressure
transducer has been
disconnected when the
system is expecting
one.
Outlet pressure
transducer has failed.
Inlet pressure
transducer has failed.
Low Differential
Pressure
High Differential
Pressure
Potlife time has expired
before moving the
required amount
of material (potlife
volume) through the
mixed material line.
Cause
Disconnected
transducer.
Outlet pressure
transducer has failed
or the pressure is
above the readable
range.
Inlet pressure
transducer has failed
or the pressure is
above the readable
range.
There is a leak on the
B side.
The B side pump is
cavitating.
There is a leak on the
A side.
The A side pump is
cavitating.
Purge process was not
completed.
Solvent supply shut off
or empty.
Troubleshooting
Solution
Verify transducer
is connected
properly. Replace if
reconnecting does not
eliminate the alarm.
Relieve system
pressure. Verify
connections, or
replace if reconnecting
does not eliminate the
alarm.
Relieve system
pressure. Verify
connections, or
replace if reconnecting
does not eliminate the
alarm.
Check the system
for internal and
external leaks on
all color manifolds and
plumbing.
Check paint supply on
the B side, increase
paint supply pressure.
Check the system
for internal and
external leaks on
all color manifolds and
plumbing.
Check paint supply on
the A side, increase
paint supply pressure.
Make sure purge
process is completed.
Verify solvent supply
is available and on,
supply valves are
open.
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