Communication Failed Ecostar SPX3400DR and OnCommand Console


New member
May 19, 2020
Elk Grove CA
Hello All,
Two days ago, my pool stopped runing, I went outside to inspect and it said there was a bridge comm error on my console (OnCommand). The Ecostar pump said check wiring between pump and display. There was nothing obviously wrong, but with the wet weather we were having, I went ahead and replaced all of the wiring. No luck, same error message. Running through the diagnostics menu I saw VOLTAGE TOO LOW, which may or may not be related, but obviously another issue. I feel the drive is the only thing left that could be screwed up, even though its only two years old (and a replacement of the pump that went out two years ago while still under warranty). Anybody had an issue similar to this?
Thank you for any help in advance


Gold Supporter
TFP Guide
Jul 21, 2013
Northern NJ
Pool Size
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
Welcome to TFP

Sounds like another Ecostar bad drive. Replace it with a TriStar VS pump.
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