Troubleshooting - Graco Ultra Max 695 Manual

WARNING
Improper installation or alteration of grounding plug
results in risk of electric shock, fire or explosion
that could cause serious injury or death.
1. All models require a grounded outlet for power
connection. Circuit must be 50/60 Hz with an
Ampere rating equal to or greater than the sprayer.
See Fig. 2.
2. Do not alter ground prong or use adapter.
Relieve pressure; page 4.
PROBLEM
Motor won't operate
Grounding

Troubleshooting

WHAT TO CHECK
If check is OK, go to next check
1. Check digital display for error codes on spray-
ers with digital displays or motor control board
inside SmartControl for blinking LED on spray-
ers without digital displays
2. Make sure digital display is connected. If noth-
ing is displayed, check power cord, power
switch and all power connections for continuity.
Check building circuit power.
3. Check pressure control knob setting. Motor will
not run if pressure control knob is at minimum
setting.
4. With drain valve open and pressure control
knob set to maximum, check if there is a light
blinking next to either psi, bar, or MPa
a. If light is blinking, control board is
commanding motor to run and prob-
lem is most likely motor or motor
wiring.
b. If light is not blinking, control board,
control board wiring, potentiometer
or transducer is most likely cause.
Grounded
Outlets
120 Vac model shown
Fig. 2
3. 120 Vac: A 12 AWG, 3 wires with grounding prong,
300 ft (90 m) extension cord may be used.
220–240 Vac: You may use a 3-wire, 1.0 mm (12
AWG) (minimum) extension cord up to 90 m long.
Long lengths reduce sprayer performance.
WHAT TO DO
When check is not OK refer to this column
1. If an error code (E=0X) is displayed or LED is
blinking, go to page 18 for error code diag-
nostics. If not continue.
2. Tighten any loose power connections. Re-
place power switch, power cord or extension
cords if damaged. Reset circuit breaker if
tripped.
3. Increase pressure setting
4. Based on results of this test, investigate for
possible wiring, motor, control, transducer or
potentiometer problems in the following
steps
Grounding Plug
5
309251