Why does my pool pump not start on high speed?
On high speed, there is the main winding and a phase winding with a run capacitor. If any of these components aren’t functioning, the motor will not start. The first and easiest thing to check is the capacitor.
When does the motor run higher than the pump speed?
Independent events are seldomly independent. The 1765 RPM is the motor RPM at rated full load of 10HP. WHen the motor is not required to deliver full load, the RPM will be higher. Since your pump rated power is 7.3 HP, the motor will run at higher than 1765 RPM.
Why is no load speed lower than pump speed?
The larger kW motor will have speed closer to the synchronous speed and vise vesa. For induction motor,the No load speed will still be below the synchronous speed by a few RPM. If your motor is an asynchronous motor/induction motor (IM), this is called slip.
Can a DS pump run on low speed?
Below is a diagram of the correct and incorrect wiring of a DS pump. In the example above, the motor will only run at low speed when switched to high speed. If the wire from the H position on the switch is connected to HIGH and the L is connected to COM, the motor will only run on low speed.
On high speed, there is the main winding and a phase winding with a run capacitor. If any of these components aren’t functioning, the motor will not start. The first and easiest thing to check is the capacitor.
Below is a diagram of the correct and incorrect wiring of a DS pump. In the example above, the motor will only run at low speed when switched to high speed. If the wire from the H position on the switch is connected to HIGH and the L is connected to COM, the motor will only run on low speed.
Is there a low speed or high speed pool pump?
Still, a few two-speed designs only have a low-speed main winding. This design always starts at high speed and switches to the low speed run winding within a couple of seconds. This motor was a less expensive design since there was no low-speed start windings or a start capacitor.
Can a two speed pool pump be replaced?
Unfortunately, if the winding is bad, it cannot be replaced and you will need to replace your whole motor. Certain types of two-speed motors actually have two separate windings in one housing. Most have a separate main and phase windings. Still, a few two-speed designs only have a low-speed main winding.
