Issues

Source 

Quick Fix

Spray gun splitting

Fluid supply is low, or it's empty.

Refill the container with supplies.

Paint pressure too low or none (motor and displacement pump working)

1 – Low pressure setting.

2 – Clogged gun filter tip.

3 – Tip is worn out.

4 - Fluid displacement pump filter clogged (if used).

5 – Fluid hose significant pressure drop. 

1 – Needs pressure surge.

2 – Tip/filter needs cleaning.

3 – Change tip.

4 – Filter cleaning.

5 – Requires larger diameter hose. 

Wet cap paint leaks

1 - Loose wet cap.

2 – Damaged or worn-out throat packings.

3 – Worn out piston rod.

1 - Tighten enough for leakage stoppage.

2 – Packings replacement. 

3 – change piston rod. 

Paint pump not working (motor operates)

1 – Low pressure settings.

2 - Dry paint is blocking the displacement.

1 – Needs pressure increase.

2 – Pump servicing. 

Displacement pump operates, but output is low (down stroke/both strokes).

The lower check valve is not properly seated.

Check the lower check valve ball.

Upstroke output is low, but displacement pump operates.

1 - Incorrect seating of the upper check valve ball.

2 - Wear or damage to lower packings.

1 - Upper check ball valve service.

2 – Packings need changing.

Low pressure prevents displacement pump operation.

1 – Large tip. 

2 - Power drop from long extension cords.

1 – Small tip needed. 

2 - Shorten the cord.

Motor stoppage 

nil

Overload switch reset.

Prime does not occur with the displacement pump.

1 - There is an obstruction or stuck ball.

2 - A leak in the bypass hose (bubbles are escaping.)

1 - Check ball valves upper and lower.

2 - If equipped, inspect suction hose for holes. Check suction nut and O-ring on lower ball cage.

No unit operation

1 – Tripped Thermal breaker.

2 – Electric problem.

1 – Reset needed.

2 - Get service 

There is an issue starting the machine.

1. – Control settings
2. – Power source

1 - Turn the ON-OFF toggle switch to "ON" and press the Pressure Control Knob to maximum pressure. Make sure the unit is plugged in.

1. - Remove the bottom electrical cover. Make sure the green power light is on. Proceed to Step 3 if the light is "OFF". 7. Go to step 7 if "ON".
2. - Check with a multimetre

The unit cannot be primed.

1 - Ball valves and piston packings are dried out.

2 - Air in pump or hose or plugged inlet screen.

1. – Packing worn out.
2. - Viscous fluid.

5 - Clogged Siphon tube.

6 - Siphon tube air leak.

7 – Tip clogged.

1 - Check lower ball for free movement by removing siphon tube. Turn on pump and pour paint thinner over end of fluid section.

2 - Take out, clean. Run spray gun about 10 seconds to purge air.

1. – Replacement needed. 

4 - Add compatible solvent to pump. When pump is up to pressure, carefully remove it from solvent container and immerse inlet tube into heavy material. Remove nozzle tip and trigger gun until heavy material appears. You're ready to spray. Replace nozzle tip.

5 - Remove and clean. 

6 - Test connection and seal.

7 - Clean, relieve pressure, remove tip.

The unit cannot build pressure.

1 - Unset pressure adjusting knob.

2 - Filter dirty inlet.

3 - Worn or dirty valve balls.

4 - Air in pump or hose.

5 – Packings worn out. 

6 – Spray tip worn out. 

7 – Internal leakage. 

1 - Adjust to increase pressure.

2 - Clean/ temporarily remove.

3 – Clean/Replace.

4 - Run spray gun with trigger open until air is purged.

5 – Replace. 

6 – Replace. 

7 - Allow airless gun to pump up to pressure and shut off. An internal leak indicates a fluid section rebuild if the pump starts momentarily.

Leakage from pressure control relief hole.

Worn "O" Rings.

Repack/replace transducer.

Fluid leak at upper end

1 - Upper packings.

2 - Piston rod worn

1 - Take up packing nuts or replace packings to relieve pressure.

2 – Replace.  

Bad spray pattern.

1 – Very large tip size. 

2 – Incorrect pressure adjustment. 

3 – Not enough fluid delivery. 

4 – Fluid to viscous. 

1 – Replace tip with a smaller size. 

2 - Adjust pressure control knob.

3 - Filters and strainers must be clean.

4 - Follow manufacturer's instructions for adding solvent.

Low power unit

1 - Pressure adjustment low.

2 - Improper voltage supply.

1 – Increase. 

2 - Reconnect input voltage for 115 VAC.

Pump fuses blown.

1 – Too much pressure. 

2 - The extension cord is too long, or the wire is too thin.

1 - Have service centre recalibrate the pressure control.

2 - A maximum of 200 feet can be run on #12-gauge wire. Use more airless hose for additional length.

Airless gun spray tip won't shut off.

1 - Seat in the spray gun dirty.

2 - Needle stop nut too tight.

3 - Worn valve assembly.

1 - Apply pressure several times to spray gun.

2 - Loosen the stop-nut.

3 - Replace valve assembly.

No motor turns on airless pump.

1 - No power.

2 - Thermal overload switch.

3 - Unit under pressure.

4 - Defective switch or wiring.

3 - Set bypass valve to prime.

4 - Check wiring and replace if necessary.

No spray from airless gun.

1 - Trigger safety on.

2 – Clogged Inline filter.

3 - Adjustable tip blocked.

1 - Disengage trigger stop.

2 – Clean/replace mesh filter.

3 - Turn knob counterclockwise.

Fingering or tails on spray patterns.

1 – Too low pressure. 

2 – Too thick material.

3 – Too wide tip adjustment. 

4 – Worn out spray tip.

1 - Increase pressure at pump.

2 - Thin per manufacturer's recommendation.

3 – Pattern size reduction. 

4 – New tip installation. 

Distorted pattern

Plugged or worn tip

Clean/replace tip.

Paint is drawn up, but no pressure is built.

1 - Bypass valve in "prime" position.

2 - Air in hydraulic system.

3 - Unadjusted or worn pressure valve.

4 - Inlet valve worn.

5 - Low oil level.

6 - Filled or worn bypass valve.

1 - Turn valve to spray.

2 - Bleed air from system.

4 – Change.

5- Oil check.

6 – Clean/replace. 

Spray gun triggers pump, builds pressure, then drops.

1 - Too wide material.

2 -   The bypass valve won't close.

3 - Air in the paint.

4 - Air in hydraulics.

5 - Too big or worn orifice.

6 - Suction strainer clogged.

7 - Inlet or outlet valve worn.

1 - Follow manufacturer's instructions.

2 – Clean/replace.

3 - Check suction hose & connections.

4 – Bleed. 

5 - Adjust tip or replace strainer.

6 – clean/replace.

7 – replace.

The spray tip clogs.

1 – Paint contamination. 

2 – Dried up paint in the spray tip.

1 - Strain paint. Change filters or clean.

2 - Keep tip moist when not spraying. Replace tip with adjustable tip.

Sprayer won't start.

1- Plug problems. 

2 - On-Off switch Off.

3 - Blown fuse in circuit.

4 - Low voltage at wall plug.

5 - Bad On-Off switch.

6 - An extension cord or motor cord is damaged.

7 – Motor problems. 

1 – Plug in. 

2 – Flip switch On.

3 – Fuse replacement. 

4 – Power supply voltage testing. 

5 – Talk to an authorised service centre. 

7 - Talk to an authorised service centre.

Paint does not draw into sprayer.

1 - The suction tube should be fully immersed in paint.

2 – Clogged suction filter. 

3 - The inlet valve is loose.

4 - Inlet valve stuck.

5 - A dirty or worn-out outlet valve.

6 -   Bypass knob in "Spray" position.

7 - Pressure knob in "Low" setting.

8 - Air in the hydraulic system.

9 - Bypass Valve plugged.

10 - Suction tube problem.

11 - Inlet valve damage (neck).

1 - More paint. Dip suction tube in paint.

2 - Clean filter screen.

3 - Clean connection and tighten.

4 - Push valve with a pencil.

5 - You can remove and replace the outlet by pushing the push button valve.

6 - Turn bypass knob to "Prime".

7 - Turn pressure knob to "High".

8 - Bleed air out of the unit.

9 - Remove to clean/ replace. Take to service centre.

10 - Check for air leaks. Replace if necessary.

No sound. 

1 – Check plugs.

2 - House circuit breaker.

3 - Thermal overload switch tripped.

1 - Check cord & plug. Test motor switch.

2 - Check breaker. Try another electrical outlet.

3 - Handle motor. Turn "off" if hot. Before starting, let the motor cool.

Runs, but hums.

1 - Pump under pressure.

2 - Incorrect voltage.

3 - Extension cord.

4 – Condenser.

1 - Set bypass valve to prime.

2 - Check house voltage.

3 - Maximum length 100' - 10 ga.

4 - Replace. See service centre.

Vacuum, won't prime.

1 - Filter clogged.

2 - Air leak in suction set.

3 – Not submerged suction head.

4 - Paint too thick.

1 - Clean filter or replace.

2 - Test connections. Adjust.

3 - Check. Add more paint.

4 - Thin as recommended.

No vacuum

1 - Turn off "spray".

2 - Pressure knob on "low".

3 - Inlet valve stuck.

4 - Outlet valve stuck.

5 - Air in oil system.

6 - Inlet valve worn.

7 - Outlet valve worn.

8 - Oil in the paint.

1 - Turn counterclockwise.

2 - Turn pressure knob clockwise.

3 - Drain suction hose. With finger, press inlet valve.

4 - To prime, pour liquid into inlet valve. The outlet ball can be freed by removing the plug.

5 - Check oil level & bleed system.

6 – Check/replace per manual.

7 - Check/replace per manual.

8 - Replace diaphragm per manual.

Pressure-free primes.

1 - Suction filter.

2 - Bypass valve on prime.

3 - Bypass vale leaking.

4 - Air in oil system.

1 – Clean/replace filter.

2 - Click clockwise to "spray".

3 - Check for flow out o.

4 - Check oil and bleed system.

Pressure low

1 - Gun filter clogged.

2 - Suction filter clogged.

3 - Paint too thick.

4 - Outlet valve worn.

5 - Pressure valve worn.

1 – Clean/replace.

2 – Clean/replace.

3 - Thin as recommended.

4 – Check or change.

5 - Replacing or resetting.

Not enough spray (pressure good).

1 - Sprayer gun filter clogged.

2 – Clogged tip.

1 – Clean/replace.

2 – Remove/Clean.

Spray Gun

Released trigger drips paint.

1 - Gun valve dirty.

2 – Gun valve worn out. 

3 - 

1 - Disassemble & clean.

2 - Replace as per gun manual.

Dripping spray

Spray tip worn.

Change. 

Uneven spray.

1 - Dried paint in spray tip.

2 - Spray tip worn.

1 - Remove and clean.

2 - Replace.

Shock while spraying

1 – Non grounded pump.

2 - Groundless metal object being painted.

1 - Make sure extension cords are working.

2 - Attach ground wire to object.

Spray tip of Airless Gun does not shut off material.

1 - Dirty spray gun ball or seat.

2 - Diffuser seat worn.

3 - Needle assembly worn.

1 - While under pressure, trigger the gun several times.

2 - Replace Diffuser assembly.

3 – If required, change.

No spray from airless gun.

1 - No pressure at spray gun.

2 - Spay tip clogged.

1 - Make sure pump is working, check filter and strainer (clogged).

2 - Compressed air and a pointed needle to clean the tip.

Spray pattern on airless gun's tails.

1 – Pressure too low. 

2 – Too thick material.

3 - Spray tip worn.

1 - Pump pressure up.

2 - Thin paint according to manufacturer.

3 – Replace.

No motor turns on airless pump.

1 - No power.

2 - Defective switch or wiring.

3 - Unit under pressure.

4 - 

A defective motor could be the result of the above problems.

1 - Fuse check.

2 - If necessary, replace switch and wiring.

3 - Positive stop by turning counterclockwise.

4 - If needed, replace motor.