Troubleshooting
334530A 37
Sprayer does not run at all
AND
Displays Code 06 message
OR
Control board status light blinks 6
times repeatedly
Motor is hot or there is a fault in the
motor thermal device.
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)
atcontrol 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.
Basic electrical problems Motor leads are securely fastened
and properly mated
Replace loose terminals; crimp to
leads. Be sure terminal are firmly
connected.
Clean circuit board terminals.
Securely reconnect leads.
For loose motor brush lead
connections and terminals.
Tighten terminal screws. Replace
brushes if leads are damaged.
Brushes must be 1/2 in. [13mm]
minimum length. NOTE: Brushes do
not wear at the same rate on both
sides of motor. Check both brushes.
Replace brushes.
Broken or misaligned motor brush
springs. Rolled portion of spring must
rest squarely on top of brush.
Replace spring if broken. Realign
spring with brush.
Motor brushes may be binding in
brush holders.
Clean brush holders. Remove carbon
with small cleaning brush. Align brush
leads with slot in brush holder to
assure free vertical brush movement.
Motor armature commutator for burn
spots, gouges or extreme roughness.
Remove motor and have motor shop
resurface commutator if possible.
Problem What to Check How to check