Troubleshooting - Storch Airless ST 550 Mode D'emploi

Troubleshooting

Mechanical/pump area
Problem
E = 0X is displayed.
Pump output is low
Original instruction
What to Check
If check is OK, go to next check
Fault condition exists.
Spray tip worn.
Spray tip clogged.
Paint bucket is empty, device draws in air.
Intake strainer clogged.
Intake valve in the intake valve housing and
the outlet valve in the piston are not sealed
or are stuck. Possibly due to soiled point or
dried paint residues due to poor cleaning.
Device or piston filter is clogged or dirty.
Circulation valve is leaky, device will not
switch off.
Leak in the packing nuts area; this may indi-
cate worn or damaged seals.
Piston damaged.
Low stall pressure. Device will not reach
the set pressure and switches off too early.
Piston packings are worn or damaged.
O-ring in pump is worn or damaged.
Blocked inlet valve housing.
Large pressure drop in hose with heavy
materials.
Check extension cord for correct size.
Motor brushes and terminals have loose-
ned.
Worn motor brushes. (Brushes must be 13
mm minimum length).
1. Follow Pressure Relief Procedure, before checking
or repairing.
2. Check all possible problems and causes before
disassembling the unit.
What to Do
When check is not OK, refer to this column
Determine fault correction from Electrical.
Follow Pressure Relief Procedure, then
replace tip. See separate gun or tip manual.
Relieve pressure. Check and clean spray tip.
Refill and reprime bucket.
Remove and clean, replace if necessary.
Remove intake valve and clean. Check balls
and seats for nicks; replace if necessary.
Strain paint before using to remove parti-
cles; thoroughly clean device after use.
Clean filter.
Follow Pressure Relief Procedure, then
replace valve.
Retighten the packing nut as well as possi-
ble until the leakage stops. If it cannot be
tightened, replace the paint level.
Replace pump.
Turn pressure knob fully clockwise. Make
sure pressure control knob is properly instal-
led to allow full clockwise position. If pro-
blem persists, replace pressure sensor.
Replace paint level.
Replace paint level.
Clean intake valve.
Reduce overall length of hose. Reduce
material viscosity.
See "Extension Cords".
Tighten terminal screws. Replace brushes if
leads are damaged.
Replace brushes.
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