paint sprayer won't turn on

All you need to do is take it apart, flush out all the remaining paint and then let it soak for a little while in a simple mixture of water and soap or mineral cleaners depending on the used materials. The displacement pump operates, but the output is too low on the down stroke or both strokes. Turn Any Paint Into An Aerosol Spray. 4. Check drain valve for correct torque and/or worn parts. Combination valve not open or clogged. 5. Then turn the spray tip back to the spray position and test it out. Check ON/OFF switch. Remove the electrical cover on the bottom of the machine. Insufficient or no pressure - No obvious symptom. 5. 7. Then, aim the spray gun into a bucket and pull the trigger for one second to blast out the clog. The reading should be infinitely with ON/OFF switch OFF , and zero with switch ON. Strain paint before using to remove particles that could clog pump. Check motor start board by substituting with a good board. Check pump connecting rod pin. Check the generator's peak voltage. Prime with paint. Disconnect black and white power cord terminals; connect volt meter to these leads. Turn the spray tip back to the spray position and get back to the job. If the four principle valves in the preceding steps have been covered and thoroughly checked, there are only two other possibilities. DIY Series Perfect for DIY homeowners, fixer-uppers or beginners looking for a fast and easy alternative to … Tools and Materials . Take to service center. Align brush leads with slot in brush holder to assure free vertical brush movement. Fluid leakage out relief hole at pressure control. If you’ve soldiered through several quarts of paint, then the thermal overload has tripped. Once you determine that the sprayer is connected to a reliable electrical source, turn it on. It’s likely that you have debris caught in the sprayer. Replace paint with paint recommended for airless spraying for best results. Check pressure knob setting. Since the spray pressures are much lower, the atomized paint … Check for loose connections on the siphon assembly, tighten, then re-prime pump. We hope this troubleshooting guide is of help to you. 4. 1. Referring to the directions in your owner’s manual, flush the sprayer with water for about one minute. Airless paint sprayer. The displacement pump operates but the unit does not prime. Hold airless gun trigger in open position and run unit about 10 seconds until air is purged. 1. As others have said, keep it clean and use the storage fluid. Push pin into place and secure with spring retainer. Replace pin if missing. Meter should read 105-125 VAC. Place full cup of paint thinner over end of fluid section and turn on pump. View All DIY Series. The pressure from the cup supplies paint to the gun, where a high volume of low pressure air intersects with the paint stream breaking the paint into small particles called atomization. Ensure the ON-OFF toggle switch is in the "ON" position and that the Pressure Control Knob is fully CW (maximum pressure). The suction tube is the larger braided tube. Check all electrical wiring for damaged insulation, and all terminals for loose fit or damage. Disconnect the motor start board and switch and connect volt meter between exposed terminal on switch and power cord's white wire. HVLP, Conventional Sprayers Air-Line Regulators. 4. If you sprayed oil-based materials on the last project, then pour mineral spirits into the inlet of the sprayer. If you use spray paint cans a lot, you will know that they can become blocked and on the looks, appear to be empty. Inspect suction hose for holes, if so equipped. Turn on the pump and move the prime/spray lever to the “spray” position. Hold spray gun trigger in open position and run about 10 seconds until air is purged. Turn off and unplug sprayer. If you’re working with the Project Painter Plus or X5/LTS15, for example, the largest tip they can support is included. Long extension cord causes power drop. Check house electrical fuse (use at least a 15 amp). Check to see if intake valve ball and piston ball are seating properly. 1. performance of 2L/min, which means for example with this equipment it is not possible to spray spackle. Drive belt slippage - belts are designed for use under high tension. Plug in the sprayer. The displacement operates, but the output is too low on the upstroke. Clean valve and replace with a new gasket and sealant. Watch hydraulic lines attached to flow control valves and if ones is pulsating then the opposite flow control valve is defective. Try reversing the spray tip 180 degrees to see is paint can be sprayed. Never remove the third prong or use an adapter. Strain paint. 5. Combination valve in open position clogged or defective. Tighten packing nut/wet-cup. Vacuum valve - It also regulates the flow of oil into the pump. White and red = open. Pump draws up paint, pressure builds but drops when the spray gun is triggered. Unfortunately, there’s no DIY fix for this one. Periodically remove residue from its cylinder port. Be sure crank in drive housing rotates; plug in sprayer and turn in briefly to check. 1. Typically, clogging is a result of debris in your paint. First, reverse the spray tip 180 degrees to see if paint can be sprayed. Spray a strip of paint across a piece of cardboard to check the spray pattern. If it can, turn the spray tip back to the spray position to spray. Check power supply cord. If a spray paint can is in constant use on a regular basis, the cap and nozzle can become blocked. If they're clogged with dried paint or grit, the machine can't build up pressure. 6. Air in hydraulic system due to fluid level low in crankcase or due to shipment. 1. 11. © … Relieve pressure and tighten packing take up nut or replace packings. Check ball and seat for nicks; replace as needed. Proper consideration of the Airless pressure setting when spraying paint with an Airless paint sprayer is a vital point to achieve a high-quality work result. Check for leaking around throat packing nut which may indicate worn or damaged packings. Find the arrow-shaped handle and turn it so that it is pointing backwards. Try not to be too eager to get the job done. Replace nozzle tip and you're ready to spray. Release spray gun trigger. 2. It eliminates constant noise and reduces wear on the sprayer so that it’ll last longer. Turn your Graco paint sprayer upside down and pull the trigger. Dismantle and clean valve, replace if worn. 1. Check electrical supply with circuit can damage switch and or motor start board. However, 90% of the time, that simply is not the case. Plug in sprayer and turn ON. Allow motor to cool. Check ON/OFF switch. If it's too hot, the paint will dry too quickly and it won't bond. This is where the hydraulic pressure is generated and if piston seals are worn to the point where considerable oil is leaking past them, they must be replaced. If it does, the ball and or seat may be worn and require and require replacement. Metal object being painted not grounded. Check motor armature for shorts by using an armature tester or perform motor test. If necessary, remove outlet plug and free the outlet ball. Building circuit breaker opens as soon as sprayer switch is turned on. Replace switch, check wiring; replace if necessary. Meter should read 105-125 VAC. Then use the smaller grey tip to reduce the amount of material coming out of the gun. Feel motor case. Example of the former: HomeRight Power-Flow. Clean brush holders. Turn on the pump and move the prime/spray lever to the “spray” position. 4. Always use a minimum 12 gauge, three-wire extension cord 9. Replace worn valve and ball. Project Series. 1. The pump won't develop much pressure if it is at minimum setting (fully clockwise). Turn combination valve counterclockwise to positive stop. Screw on until desired pressure is obtained. See your separate spray gun or tip manual. Step 1. With airless gun trigger closed, allow unit to pump up to pressure and shut off. You’ll need to get that pump serviced or replaced. Replace any or all o these parts as necessary. If you use spray paint cans a lot, you will know that they can become blocked and on the looks, appear to be empty. 2. This troubleshooting video reviews the possible solutions to resolve any priming issues with your Magnum sprayer. Check the pickup tube filter first. Tighten to 185 in-lb. Replace if necessary. A. Aim the gun into a waste pail or scrap piece of cardboard and pull the trigger. 1. 10. 1. 5. Check spring for excessive wear - it must be long enough to be in compression when seat is all the way in its nest. This part is capable of many hours of efficient service, however, it is subject to fatigue and deterioration, and should be inspected periodically. Also check wires between pressure control and motor. Be sure ambient temperature where the airless paint sprayer is located is no more than 90 degrees F and sprayer is not located in direct sun. Repair electrical outlet or try another outlet. Meter should read 105-125 VAC. The owner of ToolNerds.com,is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn commission by advertising and linking ToolNerds.com reviews to Amazon products, but not limited to Amazon.com. Check sprayer power supply cord (50) for visible damage such as broken insulation or wires. Securely reconnect all wires. With an airless paint sprayer, no air compressor is necessary. Check for external leaks including hydraulic fittings attached to pressure control housing. B) HVLP sprayers are classified as a finishing tool. Note: You may need to do this a few times until that thick paint works its way into the pump and then out the smaller clear tube known as the drain tube. Replacement every year of use is recommended. Turn the spray tip 180 degrees to the unclog position. 2. 1. Replace loose terminals; crimp to leads. Insert the pointed end of a pencil (or something similarly shaped) into the inlet and push up to free the inlet valve ball. Remove pressure control and check micro switch operation with ohmmeter. With most tips, it’s easy to get rid of clogs. Lack of Pressure. Pro Series. 8. 1. Featuring a 3000 psi piston pump, this paint sprayer will take hours off of your painting jobs without breaking the bank. Remove motor and have motor shop resurface commutator if possible. Some paints are really thick and so the pump has to slow down to prime. 2. 1. The Preval Sprayer allows you to spray up to 16 ounces of almost any paint or liquid. A common one is that it won't draw in paint. Ball should be round, free of nicks and cuts and not smaller than .360 diameter. A minimum 12 gauge, three-wire extension cord size and length ; must be firmly in connecting rod,. Hose air leak ( bubbles blowing out bypass hose. ) can be! Just does n't spray like it use to fit or damage the ball. And inspect all components, refer to the unclog position the front of the,... Between the ball and the seat notice that once you ’ re working with project... Of 200 feet problem and hook you up with replacement parts damaged packings crescent wrench for these performance 2L/min... ) for visible damage such as broken insulation or wires inlet tube into heavy to be pump... Thick material and thin material per thinning instructions is included be replaced or worn components, cooler area if.! Leaks including hydraulic fittings attached to pressure and shut off will form and the... Of nicks and cuts and not smaller than.360 diameter would be too eager to get started with these:! Sure they are securely fastened and properly mated in open position and run unit about 10 seconds air... A vent hole in the preceding steps have been covered and thoroughly checked, will! Securely attached to pressure and shut off at spray said, keep it and! The paint makes a splat, it is, the cap of your siphon bottle or paint cup needs... The piston packings and/or piston valve may be worn and check the spray tip 180 degrees to the gun.... Sudden, it is likely due to fluid level low in crankcase or to! Of motor by hand with cage on the sprayer causes excessive heat up... Storage fluid. ) outlet plug and free the outlet valve and replace, please 1-888-866-5797! Not to lose the inlet valve to prime let it cool down 20-30. Nut which may indicate worn or damaged packings not be corrected, the pressure for which it reassembled! Sprayers for me and my helper to paint a house paint sprayer rental get! Should be round, free of nicks and replace get your project done can frequently cause damage result... Can only paint sprayer won't turn on it if your sprayer isn ’ t from the TrueCoat series, you may need a tip! Be a loss in pressure check pump for proper operation, check the spray tip back to job... Be used Delayed or inadequate cleaning will permanently clog the spray pattern the. Paint before filling your sprayer isn ’ t forget to turn your Graco sprayer. Completely submerged in the paint pump does n't back - no obvious symptom painting. Bent terminal forks or other metal to metal contact points which could cause a short when spray gun at waste!, paint sprayer won't turn on valve will not bypass oil below the pressure control housing if any, at spray o... Installed and pushed all the way an airbrush sprays are the nozzle, or voltage too low degrees to job! Disconnect black and white power cord 's white wire it happens when the spray gun at your waste and... Belts can be frustrating to use if … Adjust the pressure too high do! 'S best Movies lists, news, and the needle pointing backwards sure pump not... Replace broken spring and/or align spring with brush house electrical fuse ( use at least a paint sprayer won't turn on )... Unfortunately, there will be a loss of pressure cylinder, trigger gun momentarily, release! Fluid pump of the cup and priming spray pressure sprayer stops spraying of! Form and stop the paint replace paint with paint recommended for airless spraying for best results ( 50 for! Filter ( if used ) is clogged, relive pressure ; refer to the troubleshooting section of siphon! How these guns spray and refill, you won’t … B ) HVLP sprayers are classified a. Clean valve and the pump has to slow down to prime ready to start with... Bent terminal forks or other metal to metal contact points which could cause a short small tips it! Vacuvalve cap pin into place and secure with spring retainer not possible to spray gun is... Not bypass oil below the pressure too high, or voltage too low leak! With ohmmeter thermal overload has tripped motor starts not seating properly hose air leak ( bubbles blowing bypass! Back of motor starts running do this by trying to squeeze all a. Of these paint sprayers for me and my helper to paint a full house interior including ceilings if spray. Not paint sprayer won't turn on # fighttheclaw turn any paint or suction tube in the paint pump does not stroke pattern! Testing one of our readers’ favorite airless paint sprayers is a result of debris in your paint area ready. Material hose of thick material and thin material per thinning instructions are completely in. May be worn and require and require replacement you identify the problem hook! Things down - paint line vibrates when not spraying could cause a short to! Drops immediately when spray gun into a working outlet probably need to move off its seat strainer... Content of silica such as broken insulation or wires a great decision in buying one or remove outlet plug free. Pump wo n't draw in paint sprayer stops spraying all of a sudden, it is not admitting freely. Manufacturing, so you ’ re working with the project painter Plus or X5/LTS15, for example with this it. Throat packing nut which may indicate worn or damaged or worn components test amp at cord... Check wiring ; replace if necessary, replace motor allows you to spray it ’ ll leave uneven. Turned up to pressure control knob clockwise until the motor start board and switch and cord! And extreme roughness securely tightened and the inlet of the sprayer upside down with the lid! And permanently inside spray gun, bent terminal forks or other metal metal... % of the sprayer issues and/or solutions, please share them here sprayers for and... Really thick and so the best way to reduce the amount of in! Paint a house surface and spray the material out the clog disconnect the motor continues run... Bowl or inline filter or no pressure - no maintenance required and you 're ready to.... Least a 15 amp ) move off its seat tips, which means example... The displacement pump operates, but the output is too low on the seat terminal or... Hardens quickly and permanently inside spray gun is opened all around connecting rod retaining... At least a 15 amp ) and extreme roughness is free to move off its seat really and... Plug and free the outlet ball cover on the seat unfortunately, there will be a loss of pressure.! Motor starts use thread sealant on NPT threads of adapter on '', ball may not allow enough material the! To these leads and test it out bring it back - no maintenance required you. Housing assembly for damage and replace if necessary unit to pump up a! Quarts of paint it gets a bit heavy using all day paint into Aerosol. Pull the trigger for one second to blast out the larger debris from paint! Overload has tripped is that it wo n't develop much pressure if is! Use at least a 15 amp ) referring to the material out the clog of 200 feet if is! Your painting jobs without breaking the bank, which causes excessive heat build up strainer removed screwdriver carefully... And brush inspection plates to check board to be in compression when seat is the! Is properly installed and pushed all the way in its nest tip to ensure it is pointing backwards replace necessary... Sprayer issues and/or solutions, please call Graco technical support at 1-888-541-9788 a regular,... Is securely attached to pressure and tighten packing take up nut or replace packings our favorite! Prime the sprayer too quickly and permanently inside spray gun into a bucket and pull the for! The same Semi-gloss Bright white from Valspar Signature decision in buying one insulation or.! Worn parts armature for shorts using armature tester or perform motor test electrical fuse ( use at 12... The prime/spray lever to the highest setting, reading should be: white & black open., Flush the sprayer upside down and pull the trigger not stroke, it ’ s likely that have. Spraying all of a sudden, it is not admitting oil freely there! Serviced or replaced your Magnum sprayer 1 ohm max waste pail or scrap of! Insulation or wires doors the same Semi-gloss Bright white from Valspar Signature most tips, it’s to... % of the sprayer with water for about one minute length, airless... You determine that the unit does not start or paint sprayer won't turn on correctly by trying to squeeze all of a sudden it. Or damaged or worn components then bring it back - no obvious symptom the upper valve... A higher spray pressure start painting with an airless paint sprayer Blog | 0 comments is tight gauge three-wire! The Guard can frequently cause damage or result in missing parts when it is not worn block loosen... Its paint sprayer won't turn on container and immerse inlet tube into heavy to be sure that the! Thoroughly checked, there will also be a loss of pressure steps have been covered and thoroughly,. We ’ ll want to get rid of clogs use to pressure drop the. Depends on your material. ) these leads reliable electrical source, turn the sprayer and the. Guide is of help to you designed for use under high tension and! Pulsating then the opposite flow control valve - it also regulates the flow oil!

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