I have a 2-speed pump powering a waterfall that just burnt out. Don't ask me why the original owners had a two-speed motor wired only for one-speed for a waterfall... The motor makes a hum, but does not run. The impeller turns freely, and I tried changing the capacitor (the original capacitor was bulging), but still just a hum. So I think the motor is burnt out. (Unless it could be something I'm not thinking of?)
So I want to change it to an equivalent one-speed motor. The pump is a Hayward Tristar Pump model # SP32102EE (advertised as a 1 HP 2-speed pump), with the following stats:
Emerson motor 1.85/.22 THP; 1.0/.12 FRHP / 1.85 SF, and I'm pretty sure it's wired to the high speed.
Should I just get a 1.0 HP motor? I know that you multiply the SF by the HP to get the THP, but I'm still a bit confused on what exactly I should order, because the SF and therefore THP should vary, but they only seem to advertise 1 HP or 1.5 HP or 2.0 HP motors without any mention of SF or THP. Thanks!