Graco Inc 795 Premium Hi-Boy, 695 Premium Hi-Boy Check Motor Thermal Switch Unplug thermal

Models: 695 Premium Hi-Boy 1595 Premium Hi-Boy 1095 Premium Hi-Boy 3A0157A 795 Premium Hi-Boy

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Troubleshooting

TYPE OF PROBLEM

WHAT TO CHECK

HOW TO CHECK

 

 

 

Sprayer does not run at all

Control is commanding motor to run

6. Perform Field Short Test: Test at large 4-pin motor

 

but motor shaft does not rotate.

field connector. There should not be continuity from

Digital display shows E=05

Possibly locked rotor condition,

pin 4, the ground wire, and any of the remaining

 

 

an open connection exists between

3 pins. If motor field connector tests fail,

 

motor and control, there is a problem

replace motor.

 

with motor or control board, or

7. Check Motor Thermal Switch: Unplug thermal

 

motor amp draw is excessive.

 

 

wires. Set meter to ohms. Meter should read the

Control board status light blinks

 

 

proper resistance for each model (see table below).

5 times repeatedly

 

 

 

 

 

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ti13140a

 

Resistance Table:

695

0 ohms

795

2k ohms

1095

3.9k ohms

1595

6.2k ohms

MARK IV

2k ohms

MARK V 120V

6.2k ohms

MARK V 240V

3.9k ohms

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3A0157A

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Graco Inc 795 Premium Hi-Boy, 695 Premium Hi-Boy, 3A0157A, 1095 Premium Hi-Boy Check Motor Thermal Switch Unplug thermal