tracminhvu Posted May 31, 2020 Report Share Posted May 31, 2020 Hi all, My coast spa pump 2 dies on me this week, it has been more than 10 years. I replaced the capacitor but still not working. It starts up for a second and stop. I think it is time to replace a new pump motor. I attached the label of the pump here. I can not find the exact pump, can I use a comparable pump, and thank you in advance to send me a link of one. Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted May 31, 2020 Report Share Posted May 31, 2020 Sounds like a bad centrifugal switch. I would bring it to a motor rebuilder. But if you want a new one, here you go. https://www.amazon.com/Waterway-Executive-Discharge-56-Frame-3721621-1d/dp/B0036JMT2O You will have to rotate the wet end to fit by loosening the four 1/4" thru-bolts and turning the wet end, then tighten them back up. 1 Quote Link to comment Share on other sites More sharing options...
tracminhvu Posted May 31, 2020 Author Report Share Posted May 31, 2020 RDspaguy, Thank you very much for quick response. I noted my old one is 5HP, and your link of the motor is only 4HP. Could this one work? https://www.amazon.com/Waterway-Plastics-3722021-1D-Executive-230-volt/dp/B000A4RKTK/ref=psdc_1273011011_t1_B0036JMT2O Thanks. Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted May 31, 2020 Report Share Posted May 31, 2020 Your choice. The new motor will not have the endcap that attaches to the vent hose, but you shouldn't need it. If you find it causes a problem there are solutions, just let us know. 1 Quote Link to comment Share on other sites More sharing options...
tracminhvu Posted May 31, 2020 Author Report Share Posted May 31, 2020 9 hours ago, RDspaguy said: Your choice. The new motor will not have the endcap that attaches to the vent hose, but you shouldn't need it. If you find it causes a problem there are solutions, just let us know. Sorry, I updated my previous question before seeing your post, could this one work? I would like to match 5HP with the original one. Thanks. https://www.amazon.com/Waterway-Plastics-3722021-1D-Executive-230-volt/dp/B000A4RKTK/ref=psdc_1273011011_t1_B0036JMT2O Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted May 31, 2020 Report Share Posted May 31, 2020 45 minutes ago, tracminhvu said: Sorry, I updated my previous question before seeing your post, could this one work? I would like to match 5HP with the original one. Thanks. https://www.amazon.com/Waterway-Plastics-3722021-1D-Executive-230-volt/dp/B000A4RKTK/ref=psdc_1273011011_t1_B0036JMT2O NO...The wet end is 2 1/2 x 2" PLEASE VERIFY. https://www.spadepot.com/5-HP-Spa-Pump-25-in20-out-Side-Discharge-56-Frame-240V-P9413C690.aspx The foot pad of the pump will be different. You will likely only be able to get the front 2 openings bolted into place and the back 2 you will have to make something up out of wood to support the back 2 openings. The wiring connections will also have to be modified with spade connectors and a fork connector for the ground wire to attach. Make sure to note the high and low speed wires before removing them from the yellow pump. If when you restart the spa and it starts in high speed and not low speed you will have to switch the red and black around either in the pack/circuit board or at the back of the pump. As @RDspaguy mentioned the vent hose won't work and the wet end will have to be rotated. 1 1 Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted May 31, 2020 Report Share Posted May 31, 2020 Nice catch, Canadaguy. I did not notice the 2.5 inch suction. https://www.spadepot.com/5-HP-Spa-Pump-25-in20-out-Side-Discharge-56-Frame-240V-P9413C690.aspx This also does not have the same base and will need support. 1 1 Quote Link to comment Share on other sites More sharing options...
tracminhvu Posted May 31, 2020 Author Report Share Posted May 31, 2020 Rotating the wet end should be no problem, I think I will order the one at spadepot.com and make do with the base support. Thank you all. Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted May 31, 2020 Report Share Posted May 31, 2020 Let us know how it goes, we love happy endings. 1 Quote Link to comment Share on other sites More sharing options...
castletonia Posted June 1, 2020 Report Share Posted June 1, 2020 I know I'm late to the party, but that is a legit 5HP pump. The yellow pumps were 5HP and red pumps were 7HP and I'm pretty sure they can only be purchased direct from Coast or a Coast Spa retailer. 1 Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted June 1, 2020 Report Share Posted June 1, 2020 6 hours ago, castletonia said: I know I'm late to the party, but that is a legit 5HP pump. The yellow pumps were 5HP and red pumps were 7HP and I'm pretty sure they can only be purchased direct from Coast or a Coast Spa retailer. The replacement actually has a higher amp draw on both hi and low...both have waterway wet ends 2.5 down to 2". There was a recall on the Franklin pumps made between 2002 and 2004. If you had one they will send you a new one... https://impeller.net/magazin/coast-spas-and-franklin-electric-co-recall-coast-spas-due-to-fire-hazard/ 1 Quote Link to comment Share on other sites More sharing options...
tracminhvu Posted June 1, 2020 Author Report Share Posted June 1, 2020 12 hours ago, castletonia said: I know I'm late to the party, but that is a legit 5HP pump. The yellow pumps were 5HP and red pumps were 7HP and I'm pretty sure they can only be purchased direct from Coast or a Coast Spa retailer. is this one: https://spacare.com/CoastSpaYellowPump56FrameWaterway50HP220volts2speed3722020-6310.aspx ouch! expensive! Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted June 1, 2020 Report Share Posted June 1, 2020 Yep...and if you buy it at a Coast retail store it is likely even more...but we know better 2 Quote Link to comment Share on other sites More sharing options...
tracminhvu Posted June 10, 2020 Author Report Share Posted June 10, 2020 On 5/31/2020 at 4:55 PM, RDspaguy said: Let us know how it goes, we love happy endings. hooking up the back side was a heck of pain! but finally got the new pump installed, no leak! and running well. Thank you guys for giving me the confident to do it. Btw, the pump cable jacks to the main board are loose, no matter how hard i push in, they are not pushed in all the way, any advice? Thank you. Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted June 10, 2020 Report Share Posted June 10, 2020 41 minutes ago, tracminhvu said: , the pump cable jacks to the main board are loose, no matter how hard i push in, they are not pushed in all the way, any advice? If you think it is going to be an issue you could always bypass the plugs and wire the pump cord directly onto the circuit board. Just cut the pump wire male plug and crimp on some female spade connectors onto the wire and attach them directly onto the board and remove the female end wires. 1 Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted June 10, 2020 Report Share Posted June 10, 2020 Happens all the time. I just do what @CanadianSpaTech said and eliminate them. 1 Quote Link to comment Share on other sites More sharing options...
dianelys Posted May 30, 2023 Report Share Posted May 30, 2023 I need an impeller for this motor but cant find one do you guys know wich impeller goes with this motor Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted May 30, 2023 Report Share Posted May 30, 2023 https://www.poolandhottubdepot.com/5hp-impeller-for-waterway-coast-spas-14a-franklin-motors-only/ Quote Link to comment Share on other sites More sharing options...
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