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charlesrobertsJul 27, 2025
What to do if my Polaris PB4SQ is leaking water between the motor and pump body?
- NNathan DickersonJul 27, 2025
This is likely due to a damaged or failed mechanical seal. The solution is to replace the seal.
To Next PageTo Next PageWhat to do if my Polaris PB4SQ is leaking water between the motor and pump body?
This is likely due to a damaged or failed mechanical seal. The solution is to replace the seal.
What to do if air leaks are still present in my Polaris PB4SQ?
Check the suction side piping union. While the pump is running, try tightening the union. If the air leak persists, turn off the pump. Loosen both unions and slide the pump out of the way. Remove, clean, and reinstall both union o-rings on the filtration pump. Reposition the pump next to the piping and secure the union nuts to the pump. With clean union o-rings, hand-tightening the unions should create a seal. If the unions still don't seal, gently tighten with a large pair of tongue-and-groove pliers, but avoid over-tightening.
What to do if there is no debris blocking the impeller and the pressure is still low in my Polaris Water Pump?
The pump impeller may be showing signs of normal wear. Have a qualified service technician check the impeller and replace it if necessary. Make sure that the first stage O ring is properly installed and is not pinched or damaged. If the pump is part of a relatively new installation, it could be an electrical problem. Contact a qualified service technician. Have the technician check for loose electrical connections and check the voltage at the pump motor while it is in operation. The voltage must be within 10% of the motor's data plate rating. If the voltage is not within 10%, contact a qualified electrician and/or the local power service provider. Pump seal is leaking air. Have a qualified service technician replace the seal.
What to do if my Polaris PB4SQ won't turn on?
First, ensure the pump is getting power using a digital multimeter set to AC voltage; the power must be within 10% of the nameplate voltage. Next, check the pump wiring against the supply voltage. Using the incorrect voltage can damage the motor. Also, inspect the capacitor; replace it if it's faulty. Finally, check the drive shaft by inserting a 1/4" hex key through the fan cover's center opening. If it doesn't spin easily, it may be seized and need replacement.
Why is there air in my Polaris Water Pump system?
Check the pool or spa water level to ensure it is at the proper level and that air is not being drawn into the suction piping. If the water is at normal level, turn off the pump. Remove the lid and check for debris around the lid o-ring seat or improper installation of the lid seal (these conditions will cause air to leak into the system). Clean the lid o-ring and replace the lid. Hand-tighten the lid securely until it reaches the "locked" position (follow instructions on lid). Do not use any tools to tighten the lid. Turn the pump back on.
What to do if my Polaris Water Pump cleaning/circulating system is not operating correctly?
Start by verifying that skimmer baskets, the pump basket, and other screens are clean; clean them if necessary. Then, check the filter and clean it as needed. Also, check the valve positions and adjust them accordingly. Keep in mind that multiple pieces of equipment operating simultaneously may prevent the cleaning system from working correctly. Manually check the cleaning system to ensure it's adjusted per the manufacturer's recommendations.
General| Type | Booster Pump |
|---|---|
| Voltage | 115/230V |
| Max Head | 60 ft |
| Inlet Size | 1.5 inches |
| Outlet Size | 1.5 inches |
| Horsepower | 0.75 HP |
| Motor Type | TEFC |
