Sears CRAFTSMAN 390.251482 User Manual (English)

Questions and Answers:

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Jason LynchAug 18, 2025
Why does my Sears CRAFTSMAN 390.251482 cycle too frequently?
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  Bradley RichAug 18, 2025
  Frequent cycling of your Sears Water Pump can occur for several reasons: * If you have a standard pressure tank, it may be water-logged and has no air cushion. Drain the tank to the air volume control tapping to resolve this. * Check the connections. * Make sure that all faucets or valves are closed. * The foot valve may need replacement. * The pressure switch may need adjustment or replacement. * If you have a Captive Air® Tank (Models 390.251482 and 390.251882), ensure it has the correct air charge (40 pounds). To check, disconnect electrical power, open faucets to relieve pressure, and use a tire pressure gauge at the valve stem on top of the tank. If low, add air until the proper pressure is reached. Check for leaks with a soapy solution and replace the core if needed.
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millerkaitlinAug 21, 2025
What to do if Sears CRAFTSMAN 390.251482 pumps water but does not shut off?
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  darinmontgomeryAug 21, 2025
  If your Sears Water Pump continues to pump water and doesn't shut off, consider these possible solutions: * The pressure switch may be out of adjustment or the contacts may be “frozen”. Try adjusting or replacing the pressure switch. * Ensure all faucets are closed. * The jet or impeller may need cleaning. * Consider whether a deep well jet pump is needed. * Refer to the wiring instructions.
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Brian FordAug 25, 2025
How to fix a Sears Water Pump when the motor will not run?
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  Ryan NealAug 26, 2025
  If the motor of your Sears Water Pump will not run, try the following: * Ensure the switch is turned on. * Replace the fuse. * Replace the starting switch. * Refer to the wiring instructions and check and tighten all wiring. * Clean the contacts by sliding a piece of plain paper between them.
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Diane RamosAug 28, 2025
Why Sears CRAFTSMAN 390.251482 Water Pump doesn't deliver water to full capacity?
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  Kevin BlairAug 28, 2025
  If your Sears Water Pump isn't delivering water to its full capacity: * A deep well jet pump may be needed if the water level is over 20 ft. * If steel piping is used, corrosion or lime buildup could be causing excess friction. Replace it with plastic pipe where possible, or with new steel pipe. * Try using larger offset piping.
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brownkeithSep 1, 2025
Why does my Sears CRAFTSMAN 390.251482 motor run hot and overload kicks off?
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  Krista PatelSep 1, 2025
  If your Sears Water Pump motor runs hot and the overload kicks off: * Refer to the wiring instructions. * Check with the power company. If the wire size is too small, install heavier wiring. See the wiring instructions for guidance. * See the section on too frequent cycling.
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Michael PettySep 5, 2025
Why air spurts from faucets with my Sears Water Pump?
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  John HigginsSep 5, 2025
  If you're experiencing air spurts from the faucets connected to your Sears Water Pump: * As soon as the pump picks up prime, all air will be ejected. * Check the suction piping for any leaks on the suction side of the pump. * Consider changing the installation as described in the manual. * Lower the foot valve if possible; otherwise, restrict the discharge side of the pump.
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Jon SawyerSep 9, 2025
What to do if leaks at the metal clamps of Sears Water Pump?
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  Eddie PorterSep 9, 2025
  If there are leaks at the metal clamps of your Sears Water Pump: * Ensure all system pressure is released before working on the clamp. * Check that the clamp is tight. * Tap around the clamp with a hammer on a wooden block, then retighten the clamp screw. * Inspect the O-Ring for proper seating and check for any dirt on the O-Ring or seat.