pjyelton

Thanks, that at least helps me start to better troubleshoot this. I opened up the box and its a mess and doesn't look like it has been touched in over 20 years. Posting pictures won't help at all until I get in there and clean it up, as I'm doing that I'll go wire by wire to try to narrow down the issue.

Ok will do but might have to wait a couple days as the weather outside is awful and doesn't look to be getting better for a bit. Out of curiosity, what would be the expected multimeter reading if things were working correctly, should I expect to see 240v across two of those wires? Or can that not be determined without the diagrams/pictures?

I installed a new water pump to my old hot tub that I inherited recently, the pump lasted for a day but then stopped working all together and I'm trying to debug why. I'm hoping someone here can give me some advice. When the pump gets a signal to run either from a heat call or schedule call nothing happens at all. I can turn the pump freely with a screwdriver so it isn't stuck. I have checked the fuses and nothing is blown and also checked the starter capacitor and it seems to be working fine while testing with a multimeter plus I swapped it out with the capacitor from the old pump and nothing changes. Here is where I am uncertain because I have very limited experience when dealing with electrical systems. The pump power cord has 4 wires: red, black, white, green. My understanding is that since this is a dual pump setup and based on how the previous pump was wired that the red and black for the two speeds, white is neutral or constant, and green is ground. Using a multimeter and during a schedule call I can only get it to read 120v and that's going from the red wire to ground. Going from red to white or red to black give me nothing. I don't know if that is to be expected or if that means there is a problem since I believe the pump requires 240v. And if that is to be expected, any other test I can run with a multimeter before I just give up and say the pump is broken? Here is the pump in question, its the 1.5 HP Dual Speed: https://www.amazon.com/gp/product/B09ZY9M7ZD

Moved into a new house few months ago that has a 20+ year old Leisure Bay hot tub built into the deck. After some leak repairs and cleanup I was able to get it working and haven't had any problems the last few months. A couple of days ago however the main pump stopped working and I'm trying to isolate exactly where the problem is and I'm not sure how to do that since I am completely new to this type of work. I have checked the filter and made sure there wasn't any blockage, as far as I can tell the water can flow freely through the pipes. The spa has two pumps, a duel speed and a single speed. I'm guessing the dual speed is for the circulation and one of the jets, and the single speed is for the other jet, but to be honest I'm not 100% clear on that since we don't ever use the jets and I've never paid attention down there when the motors were running. When the spa gets a heat call or when the timer hits to circulate nothing happens other than a light turning on the control panel saying a heat call was made. Turning on Jet #1 also does nothing. Turning on Jet #2 I can hear a buzzing noise but they don't turn on. If that turned on then I would definitely say its the first motor, but since neither turn on I am confused. The dual speed motor in question is a an old Franklin model, can't even find any information for it online. It is bolted in and rusted quite badly. I don't have a problem replacing it, but want to be sure that is the problem first and I'm not sure how to do that without dismantling everything down there. The motor is definitely getting power, I have checked with a voltmeter. Is it possible the control box has a bad wire so it simply isn't sending the signal for the motor to turn on? I replaced the fuses but that did nothing. Below are pictures of the motor specs as well as the control box wiring if either helps.