SHURflo ProPack SRS 540, Instruction Manual

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Troubleshooting
13
Problem: Check:
Power indicator lamp does not
illuminate / pump will not run.
Remove battery pack and check wire connections
at battery terminals, black wire to (-) battery
connection and black and white wire to (+) battery
connection.
Remove the power plug and check the battery
jack to ensure it is clear of debris and dry.
Reinstall the power plug.
Bypass the PC board by disconnecting the wire
connections to the pump from the PCB and apply
power directly to the pump terminals. If pump
runs, replace the PCB. If pump does not run,
replace pump and PCB.
Power indicator illuminates / pump
will not run.
Bypass the PC board by disconnecting the wire
connections to the pump from the PCB and apply
power directly to the pump wires; red (+), black
(-). If pump runs, replace the PCB. If pump does
not run, replace pump and PCB.
Power indicator illuminates, pump
motor runs but does not pump fluid.
Check pump inlet hose to ensure it is not
blocked, or leaking.
Check discharge hose, wand strainer and wand
tip to ensure they are not blocked.
Open the spray tip slightly until the pump stops
cycling. Turn off pump, bleed system pressure,
disconnect spray lance from handle and check
that the spring loaded plunger in the handle is
free of debris and the valve seat on the spray
lance fitting is free of debris.
Check all discharge hose connections, including
connection at pump, for leaks.
Pump operates but cycles or will not
shut off when wand handle is
released.
Pump operates but flow rate is
reduced.
Check the inlet strainer to ensure it is clear of
debris. Check the strainer in the wand handle to
ensure it is clear of debris.