huey graphite Posted October 8, 2012 Report Share Posted October 8, 2012 I have an Infinity tub with Balboa VS Control system. I replaced the main pump about a year and a half ago and have had ongoing problems. The main pump is 2 speed that can be controlled by the top panel. The low speed is supposed to come on with filtration cycles and when the water temp drops below the set temp. With either method the low speed will not work. The pump hums and after 5-10 seconds will go into thermal overload. However if I press the top panel switch while it is humming, it will go into high speed. If I hit it again, it WILL run in low speed. Also, if I leave it on high speed (while in it for example) after 15 minutes the pump will time out and if the temp has dropped below the set speed it will then run fine in low speed for as long as it needs to heat. I suspected it would be the start capacitor so I swapped out the capacitor between the secondary 1 speed pump (40uf) and the problem/main 2 speed pump (50uf). Is the lower capacitance is insufficient? Any other suggestions? Thanks in advance. Quote Link to comment Share on other sites More sharing options...
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