Totally make sense.Unless you need a lot of flow, there is no reason to have a pump that big.
A 073126 or 073127 should be plenty of flow.
You can undersize the impeller for the motor, but you can't undersize the motor for the impeller.
Yeah, lots of options. None of them cheap.You should take the impeller off and then take the seal plate off of the motor to make sure that everything is ok.
Maybe just get a new variable speed pump.
I follow you. I did not check those bolts. Figured it was best not to touch them. I will have to budget for this in the near future. Based on how my piping is laid out, I think that most of the fittings will need to be replaced.This is the seal plate.
The motor bolts to the seal plate.
Sometimes the brass grommets come loose and the motor pulls back, which causes the impeller to rub on the seal plate and/or the diffuser.
Based on the amperage, the impeller is probably rubbing. It's also possible that the excessive load has damaged the motor.
You can replace the impeller and seal to see if the pump will work, but I would probably just replace the pump with and intelliflo variable speed pump and forget about the old pump.
Great catch. I didn't notice that when I had it apart. I appreciate you continuing to look into this!You can see scratches on the impeller, which indicate rubbing.
The excessive load and the rubbing finally caused the motor to overheat enough to shut down.
Most likely, the seal plate is bad.
The cost for a seal plate, impeller, seal etc. are too much considering that the motor is likely damaged.
You current pump has been using about 2,500 watts.
A variable speed pump will use closer to 250 watts, which is 1/10th the amount of power.
That will reduce the power bill and offset the cost of a new pump.
View attachment 366153
The total hp is the rated hp x the service factor.When replacing a motor where the system calls for 1.5 hp you buy a 1.5 hp motor not a 1 hp motor with a service factor of 1.65.
Using sf x hp to rate a motor will result in premature motor failure.The total hp is the rated hp x the service factor.
A 1.0 hp motor with a service factor of 1.65 is the same as a 1.5 hp motor with a service factor of 1.1.
A 1.0 hp motor with a service factor of 1.65 is called a "full rated" motor.
A 1.5 hp motor with a service factor of 1.1 is called an "up-rated" motor.
They are both the exact same motor. They both have a total of 1.65 hp.
So, it's confusing to see one listed as 1 hp and the other listed as 1.5 hp.
The key is the total hp, which is what really matters.
Service Factor is being eliminated.
I see this is new as of 7/18/2021Total Horsepower or Service Factor Horsepower (SFHP) is required to be labeled on each pump.
THP or SFHP is the new HP rating determined by the total horsepower created at the motor shaft.
The OP has a WF-28, which is listed as a 2 hp pump with a service Factor of 1.1 for a total hp of 2.2.They are not the exact same motor one is a 1 hp motor with a sf of 1.65
and the other is a 1.5 hp motor with a sf 1.1