Graco 249570 A, Инструкция-перечень запасных частей

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Troubleshooting
34 311075ZAB
Status indicator (red LED) not lit. Motor Power switch off. Cycle the motor power off, then on to
reset breaker.
Loose indicator cable. Check that cable is connected at J10
pins 1 (red) and 2 (black) on control
board. See
Control Board , page 41.
Failed control board. Replace board. See Control Board ,
page 41.
A side rich; lack of B side. A side gauge is low. B side restriction downstream of
gauge. Check gun check valve
screen, mix module, or mix manifold
restrictor.
B side gauge is low. B side material supply problem.
Check B side inlet strainer and pump
intake valve.
B side rich; lack of A side. A side gauge is low. A side material supply problem.
Check A side inlet strainer and pump
intake valve.
B side gauge is low. A side restriction downstream of
gauge. Check gun check valve
screen, mix module, or mix manifold
restrictor.
No temperature display (heated units
only). Loose display cables on control
board. Check cable connections to each
display, see
Control Board , page
41.
Failed control board (displays get
power from control board). Remove access panel. Check if
board LED is lighted. If not, replace
board, see
Control Board , page 41.
Inadequate power to control board. Check that power supply meets
requirements.
Loose power cable. Check cable connections, see
Control Board , page 41.
Motor Power switch circuit breaker
tripped. Display is powered from Motor Power
circuit breaker. Cycle motor power
off, then on, to reset breaker.
Wrong temperature displayed. °F/°C switch in wrong position. Set switch, see Change Display
Temperature Units (°F/°C) , page
39.
Temperature displays do not match
at ambient temperature. Displays need calibration. Turn calibration screw on back of
displays to correct reading, see
Calibrate Temperature Displays ,
page 39.
PROBLEM CAUSE SOLUTION