Graco 3A1705J - page 80

Troubleshooting
Error
Code
Error
Position
Type Name Cause Solution
Pressure difference
betweenA and B material
is greater thanthe
defined value.
Ensure the material flow is
equally restrictedonboth
material lines.
Pressure imbalance is
defined too low.
Ensure that the pressure
imbalance value, on the
System Setup screen, is at
an acceptable maximum
pressure to prevent
unnecessaryalarmsand
abort dispenses.
Out of material. Fill tanks with material.
Fluid leakingfrom heater
inlet rupture disk.
Check if heater
and PRESSURE
RELIEF/SPRAY valve
(SA or SB) are plugged.
Clear. Replace rupture disk.
Do not replace with a pipe
plug.
P7AX
P7BX
MCM ALARM Pressure
Imbalance A High
(P7AX)
Pressure
Imbalance B High
(P7BX)
Feed system defective. Checkfeed pump and hoses
for blockage. Check that the
feed pumpshave the correct
air pressure.
P0AX MCM ADVISORY Pressure
Imbalance A High
See P7AX.
P0BX MCM ADVISORY Pressure
Imbalance B High
See P7BX.
Radiator fan willnot stop. Replace fan relay. See
system repair manual.
T1DE Engine
Heat
Exchanger
ALARM Low Temperature
Coolant Outlet
Engine thermostat is
stuckclosed.
Replace thermostat. See
Perkins dealer.
80 3A1705J