MasterCraft 058-7947-0 User Manual (English)

Questions and Answers:

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Eduardo HardyAug 15, 2025
Why is my MasterCraft 058-7947-0 showing low pressure or not enough air?
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  Jason AlexanderAug 16, 2025
  If your MasterCraft Air Compressor is experiencing low pressure or not enough air, check the following: * Ensure the tank drain valve is closed. * Inspect fittings for leaks using soapy water, and tighten or reseal as necessary, being careful not to overtighten. * Clean or replace the air filter element if the air intake is restricted. Also, consider whether there has been prolonged excessive use of air, and decrease the amount of air used if possible. Check the air hose for holes and replace it if necessary. Note that if the tank leaks, replace the unit immediately, and do not attempt to repair it. Finally, inspect valves for leaks and replace worn parts.
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sstewartAug 19, 2025
Why does my MasterCraft Air Compressor motor hum but not run, or run slowly?
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  Larry MitchellAug 19, 2025
  If your MasterCraft Air Compressor's motor hums but cannot run, or runs slowly, the issue could stem from low voltage. Check the power source (outlet or generator) with a voltmeter. Remove any extension cords, as it's better to use a longer hose instead. If these steps don't resolve the issue, contact an authorized service center or store, as there may be a shorted or open motor winding, or a defective check-valve, and motor replacement or parts replacement may be required.
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Joseph ZamoraAug 25, 2025
Why does the thermal overload protector cut out repeatedly on my MasterCraft 058-7947-0?
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  Andre HaynesAug 25, 2025
  If the thermal overload protector on your MasterCraft Air Compressor cuts out repeatedly, there might be several reasons. Check the power source with a voltmeter for low voltage. Clean or replace the air filter if it's clogged. Ensure the compressor is in an area with cool, dry, and well-circulated air to provide proper ventilation and avoid high room temperatures. Remove any extension cords being used. Clean all cooling surfaces of the pump and motor thoroughly after allowing the compressor to cool down.
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Kyle LongAug 27, 2025
Why do the fuses blow or the circuit breaker trip repeatedly on my MasterCraft Air Compressor?
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  Kristen RhodesAug 27, 2025
  If the fuses blow or the circuit breaker trips repeatedly on your MasterCraft Air Compressor, it may be due to an incorrectly sized fuse or a circuit overload. Check for the proper fuse or breaker and use a time-delay fuse of the correct size. Disconnect other electrical appliances from the circuit, or operate the compressor on a dedicated circuit. Also, remove any extension cords, as using a longer hose is preferable. If the problem persists, the check-valve may be defective, and you should contact an authorized service center or store for parts replacement.
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Thomas PhamAug 30, 2025
What to do if my MasterCraft Air Compressor motor runs continuously in Auto mode?
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  thomasstevenAug 30, 2025
  If your MasterCraft Air Compressor motor runs continuously when in Auto mode, and the pressure switch doesn't shut it off when the air compressor reaches cut-out pressure, activating the safety relief valve, move the pressure switch to the OFF position. If the motor still doesn't shut off, unplug the air compressor and contact an authorized service center or store. Also, the air compressor may not be large enough for your needs. Check the air requirement of the accessory being used; if it exceeds the CFM and pressure supplied by the compressor, you'll need a larger compressor.
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Laura HendersonSep 3, 2025
Why is there excessive moisture in the discharge air from my MasterCraft 058-7947-0?
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  Edward GonzalezSep 3, 2025
  If you notice excessive moisture in the discharge air of your MasterCraft Air Compressor, it may be due to excessive water in the air tank; in this case, drain the tank. High humidity can also cause this issue, so move the compressor to an area of lower humidity or install an in-line air filter.
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Melanie WoodsSep 7, 2025
How to fix a MasterCraft 058-7947-0 when the regulator does not regulate pressure?
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  Gloria MooreSep 7, 2025
  If the regulator on your MasterCraft Air Compressor does not regulate pressure, it may be due to dirty or damaged regulator internal parts. In this case, replace the regulator. Contact an authorized service center or store.