Troubleshooting - Graco e-Xtreme Z25 Operation - Repair - Parts

Troubleshooting

Problem
Pump output low on both
strokes
No output
Pump will not operate
No pressure
Driver does not turn on
(fans may still run)
Output low on down stroke Open or worn intake valve.
Output low on upstroke
Erratic or accelerated
pump speed
Cycles or fails to hold
pressure at stall
333208F
Cause
Inadequate power supply.
Exhausted fluid supply.
Clogged fluid outlet line, gun*, etc.;
hose inner diameter too small.
Worn piston packing.
Improperly installed intake or piston
check valves.
Exhausted fluid supply.
Inadequate power supply.
Exhausted fluid supply.
Clogged fluid hose or gun*.
Fluid dried on piston rod.
Driver parts are worn or damaged.
Fluid leaking from rupture disk.
Leaking drain valve.
Over voltage (over 300 V)
No power to control board.
Open or worn piston valve packings.
Fluid supply exhausted.
Clogged suction.
Open or worn piston valve packings.
Open or worn intake valve.
Clogged gun, hose, outlet, etc.
Open or worn outlet check valve
Worn intake or piston valves or seals.
NOTE: Check all possible remedies before
disassembling pump.
NOTE: The LED on the driver will blink if an error is
detected.
See Power Supply, page 6.
Refill and prime pump.
Clear hose, outlet check valve, or gun; use
hose with larger inner diameter.
Replace. See lower manual.
Check and repair. See lower manual.
Refill and prime pump.
See Power Supply, page 6.
Refill and prime pump.
Clean hose or gun.
Disassemble and clean pump. See lower
manual. In future, stop pump at bottom of
stroke. Keep wet-cup filled with compatible
solvent.
Repair or replace driver.
Replace rupture disk with new one; do not
replace with pipe plug.
Close or replace.
See Power Supply, page 6.
Verify power supply is connected.
Check junction box connections.
Clear or service intake valve.
Clear piston valve; replace packings.
Refill supply and prime pump.
Clean suction tube.
Clear piston valve; replace packings.
Clear or service intake valve.
Clear gun, hose, outlet, etc.
Clear or service outlet check valve.
Service lower. See Xtreme Lower Removal,
page 19, and lower manual (311762).
Troubleshooting
Solution
15