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Alarms
52 312359J
Alarm Codes and Troubleshooting
NOTE: See XM Plural-Component Sprayers Repair-Parts manuals for non-alarm based troubleshooting.
Alarm
Code Alarm Problem When Active Cause Solution
General Performance Alarms
R4B Ratio High B (Overdose B),
system delivering too much B
component.
Spray B Dosing valve not closing. Perform Pump Test to test for
leakage. See Pump and Meter-
ing Test, page 40.
Loosen valve packing nut. See
manual 313289.
Check air signal at valve top
Repair valve or air solenoid.
See manual 313289.
No B restriction at mix manifold. Increase B Restriction by turn-
ing B restrictor stem clockwise.
See Adjust B Machine Outlet
Restriction, page 33.
Pump filter plugged on A side. Clean filter. See manual
311762.
Use alternate 30 mesh screen.
See manual 311762 for part
number.
Inlet air dropping below 80 psi
(0.55 MPa, 5.5 bar) while spray-
ing. B dosing valve not closing
correctly.
Check air filters. See manual
313289.
Use larger air hose.
Use larger compressor.
Use smaller gun tips or less
guns to reduce flow rate.
Solenoid air regulator set below
80 psi (0.55 MPa, 5.5 bar)
Adjust air regulator.
R1B Ratio Low B (under dose B);
system delivering not enough
B component.
Spray B dosing valve will not open. Check for air signal to valve.
B mix manifold valve closed. Open green mix manifold valve.
Pump filter plugged on B side. Use alternate 30 mesh screen.
See manual 311762 for part
number.
Clean B pump outlet filter. See
manual 311762.
REC System detected five R4B
(ratio high B) or five R1B
(ratio low B) alarms within five
minutes. Sprayer shuts down
for five minutes to resolve
problem.
Spray See R4B or R1B alarm causes. See R4B or R1B alarm solu-
tions. Flush mixed material if
necessary, and purge off-ratio
mixed material in hose.
FHA
FHB
System detects pump move-
ment (fluid flow) when there
should not be.
Spray Recirculation valve or dosing
valve open or leaking for more
than five seconds.
Close or repair recirculation
valve, and run Pump Test. See
Pump and Metering Test,
page 40. See manual 313289 if
needed.