freeflow Posted April 7, 2019 Report Share Posted April 7, 2019 Help! I've tried everything I know of. I just installed a new Waterway Executive pump to replace my old one. I filled the spa though the filter inlet as I usually do. I power up and temp comes on, heater comes on for just a minute or so, (pump does not come on!) then I get the error codes...SN (sensors out of balance) or DR (inadequate flow or air bubbles). Pump has yet to come on. Water comes out when I loosen the lines at the pump. I usually get these error codes when I refill, but it only happens once then it will start after a second try. This time though, with the new pump, something is different. Could it be the pump or an airlock? Thanks. Quote Link to comment Share on other sites More sharing options...
freeflow Posted April 7, 2019 Author Report Share Posted April 7, 2019 SOLVED. Blown fuse! Would not allow pump to turn on, therefore the sensors were not getting flow which is why the error code came up. Quote Link to comment Share on other sites More sharing options...
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