Graco IronMax V Repair Manual page 12

Troubleshooting
TYPE OF PROBLEM
Sprayer does not run at all
Digital display shows E=05
Control board status light blinks
5 times repeatedly
Sprayer does not run at all
Digital display shows E=06
Control board status light blinks
6 times repeatedly
Sprayer does not run at all
Digital display shows E=09
Control board status light blinks
9 times repeatedly
12
WHAT TO CHECK
Control is commanding motor to run
but motor shaft does not rotate.
Possibly locked rotor condition,
an open connection exists between
motor and control, there is a problem
with motor or control board, or
motor amp draw is excessive.
Allow sprayer to cool. If sprayer
runs when cool, correct cause of
overheating. Keep sprayer in cooler
location with good ventilation. Make
sure motor air intake is not blocked.
If sprayer still does not run, follow
Step 1.
Check the connections. Control
is not receiving a motor position
sensor signal
HOW TO CHECK
6. Perform Field Short Test: Test at large 4-pin motor
field connector. There should not be continuity from
pin 4, the ground wire, and any of the remaining
3 pins. If motor field connector tests fail,
replace motor.
NOTE: Motor must be cooled down for the test.
1. Set sprayer to OFF and disconnect power to
sprayer.
2. Disconnect thermal device connector from control
board socket. Make sure contacts are clean and
secure.
3. Check thermal device connector (yellow wires) at
the motor.
4. Measure resistance of the thermal device. If reading
is not correct, replace motor.
Set meter to read kohms. Meter should read the
proper resistance (see table below).
-
IronMax V
ti13140a
5. If meter reads proper resistance, reconnect thermal
device connector to control board socket. Connect
power, turn sprayer ON and control knob 1/2 turn
clockwise. If sprayer does not run, replace control
board.
1. Set sprayer to OFF and disconnect power to
sprayer.
2. Disconnect motor position sensor connector and
inspect for damage at connections.
3. Reconnect sensor.
4. Turn power ON. If error continues, replace motor.
Resistance Table:
8.2k ohms
332252A