Porter-Cable JOB BOSS C3550 User Manual (English)

Questions and Answers:

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Elizabeth RoblesAug 22, 2025
Why is my Porter-Cable JOB BOSS C3550 not supplying enough air?
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  Scott RubioAug 22, 2025
  If your Porter-Cable Air Compressor isn't providing enough air, first, reduce your air usage. Then, check if the accessory's air needs exceed what your compressor can supply; if so, you'll need a larger compressor. Inspect the hose for holes and replace it if necessary. Remove and clean the check valve, or replace it if it's restricted. Tighten any loose fittings to prevent air leaks. Finally, clean or replace the air intake filter, but always operate the compressor with the filter in place.
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elewisSep 2, 2025
What to do if my Porter-Cable Air Compressor regulator will not shut off air outlet?
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  Bryan CollinsSep 2, 2025
  If the regulator on your Porter-Cable Air Compressor will not shut off the air outlet, it is probably because the regulator is damaged. Have it checked by a Trained Service Technician.
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Natalie WrightSep 1, 2025
What to do if my Porter-Cable Air Compressor regulator knob has continuous air leak?
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  bennettamandaSep 1, 2025
  If the regulator knob on your Porter-Cable Air Compressor has a continuous air leak, it's likely that the regulator is damaged. Have it checked by a Trained Service Technician.
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Leslie WheelerAug 31, 2025
How to fix air leaks at fittings on my Porter-Cable Air Compressor?
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  Erica RobinsonAug 31, 2025
  If you have air leaks at the fittings of your Porter-Cable Air Compressor, it's likely that the tube fittings are not tight enough. Tighten the fittings where you hear air escaping. You can also check the fittings with a soapy water solution. Be careful not to overtighten them.
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April WelchAug 29, 2025
What to do if the regulator on my Porter-Cable Air Compressor won't shut off?
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  Heather McgeeAug 30, 2025
  If the regulator on your Porter-Cable Air Compressor will not shut off the air outlet, it is recommended to have it checked by a Trained Service Technician, as the regulator may be damaged.
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kevin05Aug 28, 2025
Why does the regulator knob on my Porter-Cable Air Compressor leak air continuously?
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  ileeAug 29, 2025
  If the regulator knob on your Porter-Cable Air Compressor has a continuous air leak, it is recommended to have it checked by a Trained Service Technician, as the regulator may be damaged.
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slangAug 27, 2025
How to fix restricted air intake on Porter-Cable JOB BOSS C3550?
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  rachel47Aug 27, 2025
  If your Porter-Cable Air Compressor has a restricted air intake, it is likely due to a dirty air filter. Clean or replace the air filter.
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williamsmarkAug 26, 2025
How to fix air leaks at the check valve on a Porter-Cable JOB BOSS C3550 Air Compressor?
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  Victor MillerAug 27, 2025
  If there are air leaks at or inside the check valve of your Porter-Cable Air Compressor, it could indicate a damaged check valve seat. A defective check valve can cause a constant air leak at the pressure release valve when the tank is pressurized and the compressor is off. Replace the check valve.
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tknightAug 25, 2025
How to stop air leaks at fittings on Porter-Cable Air Compressor?
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  Zachary TranAug 26, 2025
  If you notice air leaks at the fittings of your Porter-Cable Air Compressor, try tightening the fittings where you hear air escaping. You can also check the fittings with a soapy water solution to identify leaks. Be careful not to overtighten them.
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tony83Aug 25, 2025
What to do if my Porter-Cable Air Compressor motor will not run?
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  Holly VillaAug 25, 2025
  If the motor of your Porter-Cable Air Compressor won't start, let it cool down to allow the overload switch to reset automatically. Ensure the tank pressure is below the pressure switch's cut-in point, so the motor starts automatically. Inspect and clean or replace the check valve if it's stuck. Check the wiring connections inside the pressure switch and terminal box. Avoid operating the compressor in a paint spray area. Bleed the line by pushing the lever on the pressure switch to the 'off' position; if it doesn't open, replace the switch. Check the fuse box, replace blown fuses, and reset the circuit breaker, using the correct time-delay fuse and rating. Rule out low voltage conditions and extension cord issues, and disconnect other appliances or use a dedicated circuit.