Troubleshooting
34
3A6491E
Sprayer does not run at all
AND
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)
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.
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.
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
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Содержание ST MAX II 395 PC Pro
Страница 35: ...Troubleshooting 3A6491E 35 Electrical cont Sprayer Will Not Run See following page for steps ...
Страница 36: ...Troubleshooting 36 3A6491E ...
Страница 49: ...Notes 3A6491E 49 Notes ...
Страница 52: ...Battery Replacement 52 3A6491E Battery Replacement BlueLink Units Only ...
Страница 53: ...Wiring Diagrams 3A6491E 53 Wiring Diagrams 110 120V Models 395EU 490 495 595 ...
Страница 55: ...Wiring Diagrams 3A6491E 55 120V 110V Model 650 ...
Страница 57: ...Notes 3A6491E 57 Notes ...
Страница 63: ...Graco Information 3A6491E 63 ...