Magnum Project Painter Plus - 257025 - CAN257
Sprayer is Not Priming
Clearing a Tip Clog
Basic Trouble shooting
Is the sprayer turning on?
Is it priming?
Does it spray at all?
There are several causes:
1. The needle is held open with debris.
2. The grey nut at the back of the gun is turned too tight, loosen it slightly.
3. The needle may be worn and needs to be replaced. Have the gun serviced or install a new repair kit for the specific gun you are using.
Is it a new sprayer?
Jog the motor.
Did this resolve the issue?
The issue is resolved.
Powerflush the sprayer.
Did this resolve the issue?
Have you already been spraying today?
Check the following:
- Turn up the pressure control knob.
- Plug directly into a non-GFCI outlet.
- Check for a burnt fuse (ProX models only).
Did this resolve the issue?
Reverse the spray tip and try to clear a tip clog.
Did this resolve the issue?
The issue is resolved.
Check the following:
- If you sprayed a lot today allow motor to cool for 30 minutes and try again.
- Verify extension cord is at least 14 gauge and no longer than 50 ft.
- Turn up the pressure control knob.
- Plug directly into a non-GFCI outlet.
- Check for a burnt fuse (ProX models only).
Did this resolve the issue?
Follow these steps:
- Make sure the suction tube (the larger, braided tube) and the strainer are completely submerged in the paint.
- Some paints are very thick and require the pump to slow down to prime. Turn the on/off switch ON and then OFF until the pump is about to stops and then turn the sprayer ON and then OFF again. You may need to do this a few times until paint works its way into the pump and out the drain tube (smaller clear tube).
- Remove the suction tube (larger, braided tube). Insert the pointed end of a pencil into the inlet and push up to free the inlet valve ball.
- Remove and clean the outlet valve. (See component identification and troubleshooting in your owner’s manual.)
- Remove and clean the inlet valve. (See component identification and troubleshooting in your owner’s manual.) Be sure not to lose the inlet ball (some models have a spring as well).
- Remove the strainer and connect the Power Flush adapter and a garden hose to the suction tube. Following the directions in your owner’s manual, flush the sprayer with water for one minute. Reinstall the strainer on the suction tube, submerge the suction tube in the paint and prime the sprayer.
Make sure the unit is plugged into a working outlet. If it is, turn the sprayer on and then turn the sprayer’s pressure control knob clockwise until the motor starts running.
When the gun trigger is released, the motor and pump will automatically turn off. Once you pull the gun trigger and start spraying, the motor and pump will turn on again. This is normal operation and eliminates constant motor noise and reduces wear for longer life.
If the motor continues to run when the gun trigger is released, it is not primed.
Make sure the Prime/Spray Valve is pointed forward in the Spray position
The spray tip is likely clogged. Turn the spray tip 180 degrees to the unclog position, aim the spray gun into a bucket and pull the trigger for one second to clear the clog. Turn the spray tip back to the spray position and resume spraying.
The best way to reduce tip clogs is to strain you paint of the larger debris.
Make sure the pressure control is turned up to a higher spray pressure. Try moving closer to the surface. If you continue to see lines in your pattern, you may need a larger tip size if you sprayer can support it (the largest tip that the Project Painter Plus and X5/LTS15 can support is the tip that is included). Otherwise, add a small amount of water or solvent, depending upon your material. Be sure to work the water or solvent into the paint that is in your paint hose by reversing the tip and spraying the paint back into the paint bucket until the thinner material is worked into the paint hose. Don’t forget to turn your spray tip back to the spray position.
You most likely have a tip plug. Turn the spray tip 180 degrees to the unclog position, aim the spray gun into a bucket and pull the trigger for one second to clear the clog. Turn the spray tip back to the spray position and resume spraying.
The pump needs to be serviced or replaced.
The spray hose connection is not tight. Use a wrench to tighten the spray hose to the sprayer and to the gun.
Turn pressure control knob clockwise to increase pressure setting.
Test outlet with known working device.
Reset circuit breaker or replace fuse.
Find working outlet.
Reset building circuit breaker or replace fuse.
Check for broken insulation or wires. Replace electric cord if damaged.
Consult a Graco/ Magnum authorized retailer, distributor, or service center.
Replace extension cord. See page 5.
Turn ON/OFF switch off and unplug sprayer from outlet. If frozen do NOT try to start sprayer until it is completely thawed or it may damage the motor, control board and/or drive train. Place sprayer in warm area for several hours. Plug in power cord and turn ON/OFF switch to ON. Slowly increase pressure setting to see if motor will start. If not frozen, check for hardened paint in pump. If paint has hardened in pump. See page 29.
Lift Prime/Spray valve to PRIME position until paint exits drain tube. The pump is now primed.
Clean debris off inlet strainer and make sure suction tube is immersed in paint.
Remove suction tube and place a pencil into the inlet section to dislodge the ball, see page 13. Clean inlet valve ball, see page 14, OR Power Flush Sprayer, see page 21.
Some fluids may prime faster if the ON/OFF switch is momentarily turned off so the pump can slow and stop. Turn ON/OFF switch on and off several times if necessary, see page 13.
Inspect suction tube connection for cracks or vacuum leaks.
Unscrew outlet valve, remove, and clean assembly, see page 13.
Take sprayer to Graco/MAGNUM authorized service center.
Strain the paint. See page 10.
Clear spray tip clog. See page 19.
Rotate arrow-shaped handle on spray tip so it points forward to SPRAY position. See page 19.
Strain the paint. See page 27.
Align pressure control knob setting indicator to desired spray setting. See page 17.
Clean or replace gun filter. See page 23.
Replace tip. See page 17
Replace tip. See page 17
Replace gasket and seal. See page 16.
Clean debris off inlet strainer and make sure suction tube is immersed in paint.
Replace extension cord. See page 5.
Check for worn or contaminated inlet valve or outlet valve. - Prime sprayer with paint - Trigger gun momentarily - When trigger is released, pump should cycle momentarily and stop - If pump continues to cycle, pump valves may be worn or contaminated with debris - Remove valves. Clean and reinstall valve.
Thin material. Follow manufacturers recommendations.
Remove section of airless hose.
Material is going on too thick.
Move gun faster.
Choose a spray tip with smaller hole size.
Choose spray tip with wider fan.
Make sure gun is far enough from surface.
Material is going on too thin.
Move gun slower.
Choose spray tip with larger hole size.
Choose spray tip with narrower fan.
Make sure gun is close enough to surface.
Pressure control switch is worn and causing excessive pressure variation.
Take sprayer to Graco/MAGNUM authorized service center.
Spray gun trigger lock is engaged.
Rotate trigger lock to disengage trigger lock. See page 10.
Pressure control switch is worn.
Take sprayer to Graco/MAGNUM authorized service center.
Sprayer is over pressurizing.
Take sprayer to Graco/MAGNUM authorized service center.
Pump packings are worn.
Replace sprayer.
Keep vent holes clear of obstructions and overspray and keep sprayer open to air.
Replace extension cord. See page 5.
Use electrical generator with a proper voltage regulator.
Decrease pressure setting or increase tip size.
Clear spray tip clog. See page 19.
See troubleshooting section “Sprayer runs, but pump does not prime or looses prime while in use.” on page 32.