Storch Airless ST 550 Mode D'emploi page 219

Sprayer will not run
See following page for steps.
Remove Control box cover. Turn spray-
er ON. Observe control board status
light on control board
No Light
Once Normal Operation
Light on Control board comman-
continuo- ding motor to run
usly
Flashing See Code section for fur-
ther troubleshooting
See Step 3. Is there Continuity through
the thermal switch wires?
YES
See step 4. Does the motor run?
YES
Replace potentiometer.
See Step 1.
Is there 230 V?
YES
NO
NO
219
NO
See Step 2. Is there 230 V?
YES
Replace Repair or
the On/Off replace
switch. power cord
If motor is hot, let cool and retest.
If Step 3 still shows no continuity,
replace motor. The motor has a defec-
tive thermal device.
Connect a test pressure sensor to the
board. Does the motor run?
YES
Replace
Replace
the control
pressure
board.
sensor
Original instruction
NO
NO