Troubleshooting

TYPE OF PROBLEM

WHAT TO CHECK

 

HOW TO CHECK

 

 

 

 

Drywall feed pump does not

Check transducer or transducer

1.

Turn unit OFF and disconnect power.

run at all

connections (control board is not

2.

Check transducer and connections to control board.

 

detecting a pressure signal).

Digital display shows E=03

 

 

 

 

 

 

 

3.

Disconnect transducer from control board socket.

 

 

 

Check to see if transducer and control board

 

 

 

contacts are clean and secure.

 

 

 

 

Control board status light

 

4.

Reconnect transducer to control board socket.

blinks 3 times repeatedly

 

 

Connect power, turn unit ON, set pump to PRIME

 

 

 

position, and turn control knob 1/2 turn clockwise. If

 

 

 

drywall feed pump does not run, turn unit OFF and

 

 

 

go to next step.

 

 

5.

Connect a confirmed working transducer to control

 

 

 

board socket.

 

 

6.

Connect power, turn unit ON, set pump to PRIME

 

 

 

position, and turn control knob 1/2 turn clockwise. If

 

 

 

drywall feed pump runs, install new transducer.

 

 

 

Replace control board if unit does not run.

 

 

7.

Check transducer resistance with ohmmeter (less

 

 

 

than 9k ohm between red and black wires and 3-6k

 

 

 

ohm between green and yellow wires).

 

 

 

 

20

3A0245B

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Graco 262300, 262288, 258907, 258906, 257100 manual Drywall feed pump does not Check transducer or transducer

258907, 262288, 262300, 258906, 257100 specifications

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