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Troubleshooting
NOTE: Check all possible remedies before disassembling the system.
System Troubleshooting
Problem
Cause Solution
Inadequate power supply.
See Technical Data, page 61.
Power switch is off.
Turn switch on.
Main power is shut off.
Turn main power switch on.
Exhausted fluid supply. Refill and reprime pump.
Clogged fluid outlet line, valves,
etc.
Clear.
Unit will not operate.
Fluid dried on piston rod. Disassemble and clean pump.
See pump manual. In future, stop
pump at bottom of stroke.
Inadequate power supply.
See Technical Data, page 61.
Exhausted fluid supply. Refill and reprime pump.
Clogged fluid outlet line, valves,
etc.
Clear.
Pump output low on both strokes.
Worn piston packings.
Replace. See pump manual.
Held open or worn dosing valves.
Check and repair. See pump
manual.
Pump output low on only one
stroke.
Worn piston packing.
Replace. See pump manual.
No output. Improperly installed dosing valves.
Check solenoid connections to
valves. See pump manual.
Exhausted fluid supply. Refill and reprime pump.
Held open or worn dosing valves.
Check and repair. See pump
manual.
Pump operates erratically.
Worn piston packing.
Replace. See pump manual.
10 332709B