Desa Posted September 27, 2022 Report Share Posted September 27, 2022 Hi, I have a 20A fuse that keeps blowing intermittently when Pump 2 activates. Usually 2nd or 3rd time. Been through 5 fuses now trying to troubleshoot. Power on board all tests good. Circ pump runs thru same fuse 24hr. Old Master Spa Twilight. Replaced circuit board and heater element in spring with Balboa VS501. New topside. Wet end on Pump 2 new two years ago. I don’t know how to troubleshoot the pump itself. Question is do I straight replace the pump or is there somewhere to take pump to be inspected/fixed? I’m in Saskatoon, Sk. We’ve got a week of +20 temps so perfect time to drain tub and get this pump fixes before colder weather! Thank you!!! Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted September 27, 2022 Report Share Posted September 27, 2022 8 minutes ago, Desa said: I have a 20A fuse Should be a 30 Amp Quote Link to comment Share on other sites More sharing options...
Desa Posted September 27, 2022 Author Report Share Posted September 27, 2022 It’s this one. Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted September 28, 2022 Report Share Posted September 28, 2022 What's the amp draw on pump2?, Circ pump? What type fuse (sc, mda, etc)? Has it worked at all since you put in the controls? Quote Link to comment Share on other sites More sharing options...
Desa Posted September 29, 2022 Author Report Share Posted September 29, 2022 On 9/27/2022 at 6:40 PM, RDspaguy said: What's the amp draw on pump2?, Circ pump? What type fuse (sc, mda, etc)? Has it worked at all since you put in the controls? Amp draw on Pump2 is 12 and the little circ pump should only be 1/2 an amp (230v, 115w). I don’t know how to test actual draw. Worked well for a month after new board/control then started blowing the fuse. Initially thought it was the circ pump, but it only goes on pump2 startup. Fuse is a 326 20A which google tells me is a time delay slow blow… Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted October 7, 2022 Report Share Posted October 7, 2022 Sorry. You'd need a multimeter with an amp clamp (harbor freight $20 or so) to measure actual amp draw. Internal motor components can fail causing an increase in amp draw on the circuit, so knowing actual amp draw is crucial. It's most likely the pump2 motor in on way or another. Loose fuse holders or wire connections can also cause fuses to blow. 2 Quote Link to comment Share on other sites More sharing options...
Desa Posted October 8, 2022 Author Report Share Posted October 8, 2022 Thanks @RDspaguy, I’ll find a place to take the pump too, hopefully can be fixed. Either way, hottub’s been running just fine without it connected short a few jets so at least we’ve been able to use it. 1 Quote Link to comment Share on other sites More sharing options...
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