Graco 334530D Operation And Parts Manual page 36

Troubleshooting
Problem
Sprayer does not run at all
AND
Displays Code 06 message
OR
Control board status light blinks 6
times repeatedly
Basic electrical problems
36
What to Check
Motor is hot or there is a fault in the
motor thermal device.
Motor leads are securely fastened
and properly mated
Motor armature commutator for burn
spots, gouges or extreme roughness.
How to check
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, replace
motor.
NOTE: Motor must be cooled down
for the test.
1. Check thermal device
connector (yellow wires)
at control board.
2. Disconnect thermal device
connector from control board
socket. Make sure contacts are
clean and secure. Measure
resistance of the thermal
device. If reading is not correct,
replace motor.
Check Motor Thermal Switch:
Unplug thermal wires. Set meter to
ohms. Meter should read 100k ohms.
3. 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.
Replace loose terminals; crimp to
leads. Be sure terminal are firmly
connected.
Clean circuit board terminals.
Securely reconnect leads.
Remove motor and have motor shop
resurface commutator if possible.
334530D