Graco ti15035b, ti14838b, ti15034a, ti15036b important safety instructions Sprayer Will Not Run

Page 19

Troubleshooting

Sprayer Will Not Run

(See following page for steps)

Remove control box cover. Turn sprayer ON. Observe control board status light on control board (see page 13).

No light

 

 

 

Once

Normal operation

 

 

Light on

Control board

Continuously

commanding

 

motor to run

 

 

Flashing

See Error Code

 

section for further

 

troubleshooting

 

 

See Step 1. Do you have over 100 AC volts (200 for 220V units)?

YES

See Step 2. Do

NO

 

you have over

 

100 AC volts?

YES

Replace the

ON/OFF switch.

Repair or

NO replace power cord.

See Step 3. Is the

proper reading present through the thermal switch wires?.

If motor is hot, let cool and retest. If Step 4 still shows

NO incorrect resistance, replace motor. The motor has

a defective thermal device.

YES

See step 4. Does the motor run?

YES

Replace

potentiometer.

Pressure switch.

 

 

 

Connect a test

 

NO

 

 

transducer to the

 

 

 

board. Does the

 

 

 

 

 

 

 

 

 

 

 

motor run?

 

 

 

 

 

 

NO

YES

Replace the

 

 

control board.

 

 

 

 

 

 

Replace the

transducer

3A0157B

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Contents Mark Electric Airless SprayersUltra MAX lIl ModelsTable of Contents Extension Cords GroundingSkin Injection Hazard Fire and Explosion HazardMoving Parts Hazard Equipment Misuse HazardElectric Shock Hazard Pressurized Aluminum Parts HazardComponent Identification Pressure Relief Procedure Pails Power RequirementsGrounding Extension CordMechanical/Fluid Flow TroubleshootingPerform Pressure Relief Procedure What to Check What to do Type of ProblemFollow Pressure Relief Procedure on What to Check What to do Type of Problem Electrical Type of Problem What to Check HOW to CheckCheck to see if transducer and control board Step Check Motor Thermal Switch Unplug thermal Is not correct, replace motor YES Sprayer Will Not Shut OffSprayer Will Not Run Step VAC and 110 VAC Motor Control Board Removal Installation33 D 115 Removal VAC Filter BoardPressure Adjust Potentiometer Pressure Control Transducer Install control box 61 and control panel 68 with four screws 3A0157B Disassembly Drive and Bearing Housing ReplacementAssembly Drive and Bearing Housing Replacement Removal Motor ReplacementInstallation Install Motor ShroudMotor Replacement Perform Relieve Pressure Procedure Displacement Pump Replacement for 695/795/MarkTi7169a Perform Pressure Relief Procedure, Displacement Pump Replacement 1095/1595/MarkPlace u-bolt on pump door protrusion Attach drain hose to sprayer Hose Reel Grease shaft RemovalInstallation Reed Switch Replacement120V Models Wiring DiagramON/OFF 120V Models with 15/20 Amp Switch Digital Display Potentiometer Pressure Transducer Thermal Switch Motor Leads SensorDip Switch AutoClean Watchdog 240V Models3A0157B Graco Information Graco Standard Warranty