Crane Barnes SP50 Series

Questions and Answers

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Christine GarzaAug 1, 2025
Why is my Crane Barnes SP50 Water Pump not delivering enough capacity?
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  meghan04Aug 1, 2025
  If your Crane Water Pump is running but not delivering enough water, it could be due to several reasons. The voltage might be incorrect. The inflow may be excessive, or the pump might not be the right size for the job. There could be a restriction in the discharge line. The check valve might be stuck closed or installed backward. The shut-off valve could be closed. The impeller might be jammed, loose, worn, damaged, or have a plugged cavity or inlet. The pump could also be airlocked, or it might be running backward.
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dcookAug 5, 2025
What to do if my Crane Barnes SP50 Water Pump will not turn off?
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  Cody LewisAug 6, 2025
  If your Crane Water Pump won't turn off, several factors could be at play. The float movement might be restricted, or the switch might be defective. It's also possible that the inflow is too high, or the pump isn't properly sized for the application. The pump could be airlocked, or the H-O-A switch on the panel might be in the “HAND” position.
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Heidi MitchellAug 9, 2025
Why does my Crane Barnes SP50 cycle too frequently?
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  Karen SmithAug 9, 2025
  If your Crane Water Pump is cycling too frequently or running when not in use, the check valve might be stuck or installed backward. Fixtures could be leaking, or groundwater might be entering the basin.
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Brad JohnsonAug 14, 2025
Why does my Crane Barnes SP50 Water Pump hum but not run?
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  David FergusonAug 14, 2025
  If your Crane Water Pump is humming but not running, it could be due to incorrect voltage or the impeller being jammed or loose on the shaft. The impeller might also be worn or damaged, or its cavity or inlet could be plugged.
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Nancy GonzalezAug 18, 2025
What to do if Crane Barnes SP50 turns on and off by itself?
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  Kenneth NicholsAug 18, 2025
  If your Crane Water Pump shuts off and turns on by itself, tripping the thermal overload protector, it might be due to incorrect voltage or excessive inflow. The impeller could be jammed, loose, worn, or damaged, or its cavity or inlet could be plugged. Also, the water temperature might be too high.
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Cindy RossAug 22, 2025
Why is my Crane Barnes SP50 so noisy?
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  Jacob BrownAug 22, 2025
  If your Crane Water Pump is operating noisily or vibrating excessively, it could be due to worn bearings or a bent motor shaft. There might be debris in the impeller cavity or a broken impeller. The pump could be running backward, or the piping attachments to the building structure might be too rigid or too loose.
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Douglas MartinOct 26, 2025
How to troubleshoot Crane Barnes SP50 Water Pump that will not run?
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  William ValdezOct 26, 2025
  If your Crane Water Pump isn't running, start by checking all electrical connections to ensure they are secure. An electrician can measure the current in the motor leads. If the current is within ±20% of locked rotor Amps, the impeller is likely locked. If the current reads 0, the overload might be tripped; in this case, remove power, let the pump cool down, and then recheck the current. Also, ensure the liquid level is at least at the suggested turn-on point and recheck all sizing calculations to determine the proper pump size. Check the discharge line for any restrictions, including ice if the line runs through cold areas. Remove and inspect the check valve for correct installation and free operation. Open the valve, check the impeller for free movement, security, and condition, and clea...