As you can see in my signature my pool was completed in June of 2013 and I currently have a 3HP Pentair Intelliflo VS with SVRS pump. I know SVRS is unneccessary with two drains and a properly plumbed pool but it is required by code here in Frisco, TX.
I have been dealing with a string of pump failures. We are on our 5th pump since the pool was filled. First one failed in Dec 2013 and the others have failed at roughly 4 month intervals. The most recent pump failed this Saturday. Basically the pump "drive" goes dead. The actual motor itself is fine. One the first failure my PB replaced the drive. Second failure my PB replaced the whole pump. Third failure PB called Pentair. They sent their local "authorized" tech. He replaced drive again. Fourth failure the Pentair rep was called again. Entire pump was replaced again, some wiring/programming between the control box and pump was redone. Voltages/amperage were tested at each failure by both PB and Pentair.
Basically, they don't know whats causing the failures. Based on some internet reading (which I know is dangerous) there are reports that the Intelliflo drives may be susceptible to moisture issues. There have been repeated or short life failures reported and moisture found in the drive units or housing. I am leaning toward that being the culprit in my case. My pump is located in an area roughly 6 feet wide and 40 feet long that is bordered by a 8' tall fence and my house. It is perpetually shaded and gets no breeze or wind. I am thinking the pump gets wet via rainfall or condensation and never dries out thus eventually frying itself.
I have communicated to my PB that I want something different done with this latest failure other than replace the drive. We will just be replacing a drive again in 4 months. I have suggested replacing the control board, redo the electrical subpanel, etc. They don't seem inclined to experiment in that way, yet they are at a loss as to what to test or try next. There has been some discussion about replacing the pump altogether with a different brand. Likely a Jandy since that is what my PB uses for all the other equipment except pumps. I think replacing with a different brand is the most likely outcome.
I have two questions:
1. Has anyone had similar experiences with the Intelliflo and know of a possible solution or issue that could investigated.
2. If an offer to replace with a Jandy is made, what is a similar type or better performing pump in the Jandy line. I don't want to take a step back in pump performance/flexibility because of the replacement. Are Jandy pumps reliable and good?