Pentair Whisperflo Pump (WTEF-4) Stopped Working

You can try replacing the capacitor and the thermal cutout.

Most likely, the motor is bad but it is very early for a motor failure.

Can you show the barcode label on the pump with the date of manufacturing?

See what Pentair says.
 
I am surprised that they were allowed to use a 1.65 hp single speed pump in California.

You really should have a variable speed pump or a water feature pump if it is a water feature.
 
Thread Status
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.