rseeley Posted September 6, 2023 Report Share Posted September 6, 2023 Hi All, Thanks again for all the help in the past. I come back now with a short I cannot be clear on next steps. I recently replaced the 50 amp GFCI as it no longer tripped and was likely 10-15 years old. After a few months I started getting more frequent trips while both pumps were running. I was doing more troubleshooting today, all the wires and tight and not rusted in the breaker box. When powering on, the pump 1 will run without issue, but as soon as pump 2 starts up it will throw the breaker. I think it is the original pump. With pump 2 unplugged, pump 1 goes through normal power cycle and doesn't trip. I tried swapping them and pump 2 does not start up but it also doesn't trip the breaker. No corrosion inside pump one connections, nor on circuit breaker from what I can tell. What more should I check for before blaming it on pump 2 and swapping it out? Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted September 6, 2023 Report Share Posted September 6, 2023 10 hours ago, rseeley said: I tried swapping them and pump 2 does not start up Are they both 2 speed pumps? usually pump 2 is high speed only and wired for that. When you swapped them did you try and engage the high speed? A more reliable way would be to check for proper power coming off the board with the pump disconnected using a multi meter. If you get proper power off the board with the pump disconnected and it holds and then plug in the pump and it trips you likely have a bad pump. Quote Link to comment Share on other sites More sharing options...
rseeley Posted September 6, 2023 Author Report Share Posted September 6, 2023 Pump two is a high speed with only one speed. I swapped and tried to engage the high speed pump two while connected to pump 1 and it would not start and didn't trip the breaker. I'll give that a test, not sure exactly what power reading I should get on the multi-meter. I'm also having a hard time seeing the specs of pump two but I'll dig around. Quote Link to comment Share on other sites More sharing options...
rseeley Posted September 14, 2023 Author Report Share Posted September 14, 2023 Following up, how would I test this? Just want to do my due diligence before dropping $400 on a pump. (I've got a spare pump one in the garage from previous experience) Just want to know what I should be checking with the J18 and J19 power connections. Details from pump below Hot tub pump 2 VOLTS 230 HZ 60 RPM 3450 Model T55SWBNC-99 HP 2.5 SF. AMPS 10.0 6500-341 1081 MOTOR MFG# B10C FRAME 48Y INS CLASS F Quote Link to comment Share on other sites More sharing options...
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