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313289S 25
P4A
P4B
Pressure high Always Fluid pressure is above maxi-
mum.
Decrease main air regulator or
feed pump pressure.
DAA
DAB
Pump runaway, above 80
cpm for 10 sec.
Always No material in pump or lines; no
fluid restriction.
Refill material in tank or hoses;
install fluid tip.
DDA
DDB
Pump cavitation; dives more
than 3/4 of stroke.
Always No fluid or valve closed. Refill supply and open inlet
valve.
Material is too cold or thick. Increase material temperature
to reduce viscosity. (See Heat
Fluid section in manual
312359.) Shear material with
agitation to reduce viscosity.
Pump inlet check valve not
closing.
Clear debris from check valve.
Or replace ball, seat, and seal.
See Pump Assembly, page
44.
Feed pump not providing mate-
rial.
Check feed pump (if used).
Inlet strainer plugged (if used). Check and clean strainer. See
Pump Assembly, page 44.
P1A
P1B
Pressure low. Spray, Pump
Test, Leak Test
Fluid pressure is below 1000
psi (7 MPa, 70 bar).
Increase main air regulator.
P4R Pressure high. Recirculation Pressure is above maximum
advisory limit of 3000 psi (21
MPa, 210 bar) on A side.
Decrease pump air regulator
pressure.
P5R Pressure high. Recirculation Pressure is above maximum
warning limit of 5200 psi (35.9
MPa, 359 bar) on A side.
Decrease pump air regulator
pressure.
P9A A pump pressure is abnor-
mally low compared to B
pump pressure.
Spray A air motor is icing up causing
restriction and lower fluid pres-
sure.
Open the air motor de-ice bleed
air controls. Allow ice to melt.
Dry compressed air. Heat com-
pressed air.
Use a smaller tip.
A pump is binding. Repair lower. See Remove
Displacement Pump, page 44.
A motor is hanging up. Repair air motor. See Remove
Air Motor, page 45.
P9B B pump pressure is abnor-
mally low compared to A
pump pressure.
Spray B air motor is icing up causing
restriction and lower fluid pres-
sure.
Open the air motor de-ice bleed
air controls. Allow ice to melt.
Dry compressed air. Heat com-
pressed air.
Use a smaller tip.
B pump is binding. Repair lower. See Remove
Displacement Pump, page 44.
B3A Dosing size A advisory Spray The fluid dosing size is greater
than 35 cc when fast dosing is
turned off.
Adjust the B side fluid restric-
tion.
The fluid dosing size is greater
than 20 cc when fast dosing is
turned on.
Decrease the air motor velocity
with a smaller tip.
Alarm
Code Alarm Problem When Active Cause Solution