Graco Mark X User Manual

Troubleshooting
3A6342A 39
Problem Cause Solution
•
Sprayer does not run at all
• Display is blank
• BlueLink status light never lights up
Multiple electrical
issues.
See flow chart, page 46.
Sprayer will not shut off
Multiple electrical
issues.
See flow chart, page 48.
• Sprayer does not run at all
• Display shows CODE 02
• BlueLink status light blinks 2 times
repeatedly
Transducer or
transducer
connection issue.
1. Make sure there is no pressure in the
system (see Pressure Relief
Procedure, page 19). Check fluid path
for clogs, such as clogged filter.
2. Use airless paint spray Hose with no
metal braid 1/4 in. x 50 ft minimum.
Smaller Hose or metal braid Hose may
result in high-pressure spikes.
3. Set sprayer to OFF and disconnect
power to sprayer.
4. Check transducer and connections to
control board.
5. Disconnect transducer from control
board socket. Check that transducer
and control board contacts are clean
and secure.
6. Reconnect transducer to control board
socket. Connect power, set sprayer ON
and control knob 1/2 turn clockwise. If
sprayer does not run properly, set
sprayer to OFF and go to next step.
7. Install new transducer. Connect power,
set sprayer ON and control knob 1/2
turn clockwise. Replace control board if
sprayer does not run properly.
• Sprayer does not run at all
• Display shows CODE 03
• BlueLink status light blinks 3 times
repeatedly
Transducer
connection issue
(control board is not
detecting a
pressure signal).
1. Set sprayer to OFF and disconnect
power to sprayer.
2. Check transducer and connections to
control board.
3. Disconnect transducer from control
board socket. Check to see if transducer
and control board contacts are clean
and secure.
4. Reconnect transducer to control board
socket. Connect power, set sprayer ON
and control knob to 1/2 turn clockwise. If
sprayer does not run, set sprayer to
OFF and go to next step.
5. Connect a confirmed working trans-
ducer to control board socket.
6. Set sprayer ON and control knob to 1/2
turn clockwise. If sprayer runs, install
new transducer. Replace control board
if sprayer does not run.
7. Check transducer resistance with ohm-
meter (less than 9k ohm between red
and black wires and 3-6k ohm between
green and yellow wires).

Graco Mark X Specifications

General

Brand	Graco
Model	Mark X
Category	Paint Sprayer
Language	English