What causes air leakage around the fluid housing of a Graco Paint Sprayer?
- DDavid BlackburnSep 6, 2025
Air leakage around the fluid housing of a Graco Paint Sprayer is often caused by a damaged or missing o-ring. Replace the o-ring.












What causes air leakage around the fluid housing of a Graco Paint Sprayer?
Air leakage around the fluid housing of a Graco Paint Sprayer is often caused by a damaged or missing o-ring. Replace the o-ring.
What to do if Graco Paint Sprayer fluid does not shut off when fluid valves are closed?
If the fluid in your Graco Paint Sprayer does not shut off when the fluid valves are closed, the fluid valves may be damaged. Replace the fluid valves.
What causes loss of round pattern in Graco Paint Sprayer?
Loss of round pattern in a Graco Paint Sprayer is often caused by a dirty CeramTip. Clean the CeramTip.
What to do if my Graco Paint Sprayer motor won't operate?
If your Graco Paint Sprayer motor won't operate, try the following: Slowly increase the pressure setting to see if the motor starts. If that doesn't work, ensure the sprayer is not frozen, then plug it in, turn it on, and slowly increase the pressure setting. You can also try depressing the reset button, resetting the building circuit breaker or replacing the fuse, or trying another electrical outlet. Additionally, consider replacing the extension cord or the power supply cord. Finally, check and tighten the terminal screws or replace the brushes.
What to do if the purge rod will not actuate on my Graco Paint Sprayer?
If the purge rod on your Graco Paint Sprayer will not actuate, it could be due to no air pressure. Connect the air supply.
How to troubleshoot air leakage from front air valve on Graco Paint Sprayer?
Air leakage from the front air valve of a Graco Paint Sprayer is often caused by damaged air valve o-rings. Replace the air valve o-rings.
What causes a rapid buildup of material on the air cap of a Graco Paint Sprayer?
A rapid buildup of material on the air cap of your Graco Paint Sprayer is often due to too little cleanoff air. Increase the amount of cleanoff air.
What causes fluid mist from the CeramTip of a Graco Paint Sprayer?
Fluid mist from the CeramTip of a Graco Paint Sprayer can be caused by a worn Polycarballoy Mix Module or a worn front rod seal. Replace the worn Polycarballoy Mix Module or the worn front rod seal.
What causes steady air leakage from the muffler of a Graco Paint Sprayer?
Steady air leakage from the muffler of your Graco Paint Sprayer can be caused by damaged air valve o-rings or damaged piston o-rings. Replace the damaged air valve o-rings or piston o-rings.
Why is my Graco Paint Sprayer experiencing pressure imbalance?
A pressure imbalance in your Graco Paint Sprayer can occur due to plugged impingement ports or check valves, or unequal viscosities. Try cleaning the impingement ports and check valves. Also, adjust the temperature to compensate for viscosity differences.
Read all warnings and instructions in this manual. Save these instructions.
Ensures proper grounding to reduce electric shock risk. Follow local codes and use grounded outlets.
Guidelines to prevent fire and explosion from flammable fumes, static electricity, and ignition sources.
Addresses risks of skin injection from high-pressure spray and hazards from equipment misuse.
Covers electric shock, aluminum parts, burn, moving parts, toxic fluids, and PPE requirements.
Details the motor's thermal overload switch and procedures for overheating.
Instructions on engaging the trigger lock to prevent accidental spraying.
Steps to relieve system pressure before cleaning, servicing, or transporting the equipment.
Explanation of pressure control knob functions for adjusting spray pressure.
Procedure for priming the sprayer and flushing out storage fluid before use.
Step-by-step guide for correctly installing the spray tip and guard onto the gun.
Guidance on basic spraying techniques, getting started, and preventing tip wear.
Instructions for unclogging spray tips and selecting the appropriate tip size for different coatings.
Information on selecting the correct tip hole size and understanding tip part numbers.
Steps for flushing the sprayer system with water or solvent after use.
Procedure for removing, cleaning, and re-installing the gun fluid filter.
Instructions for storing the sprayer for short periods (up to 2 days) and long periods (over 2 days).
Steps for properly stowing the sprayer for storage, including draining and protecting components.
General advice on keeping the sprayer clean and in good working order.
Guidelines for checking and maintaining paint hoses and spray tips.
Information on servicing pump check valves and pump packings.
Detailed list and diagrams of all parts for the ESP240V sprayer models.
| Brand | Graco |
|---|---|
| Model | A Series |
| Category | Water Pump |
| Language | English |












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