Pentair WhisperFlo Pool Pump WFE-4

Turn off the pump circuit breaker at the main panel.

Drain the pump by removing the drain plugs.

Remove the 6 bolts that hold the main pump body to the rear sub-assembly.

Gently pull the two pump halves apart, removing the rear sub-assembly.

Loosen the two holding screws located on the diffuser using a 3/32 inch Allen head wrench.

Hold the impeller securely and remove the impeller lock screw using a #2 Phillips screwdriver.

Remove the shaft cap and hold the shaft secure with a ½ inch open-end wrench.

Unscrew the impeller from the shaft by twisting it counterclockwise.

Turn off the pump at the circuit breaker

Relieve pressure in the system by allowing the water to cool

Gently tap the clamp in a counter-clockwise direction to remove the clamp and lid

Remove debris and rinse out the basket

Replace the basket if it is cracked

Ensure the pump is turned off before inspection.

Is the strainer pot cool to touch?

Check the 'See Through Lid' for leaves and debris in the basket.

Open the strainer pot lid with caution.

Remove the strainer basket from the chamber.

Clean the strainer basket of all leaves and debris.

Inspect all covers for the following issues

Is any cover loose, cracked, damaged, broken or missing?

Replace with an appropriate certified cover if necessary

Replace drain covers if they show signs of deterioration due to sunlight and weather

Disconnect power to the pump at the circuit breaker.

Disconnect the communication cable before servicing the pump.

Ensure suction and discharge valves are open and strainer pot temperature is cool to touch before opening.

Motor Care - Protection from Heat

Ensure any enclosure is well ventilated to prevent overheating.

Provide ample cross ventilation.

Motor Care - Protection against Dirt