Brian T Posted January 8, 2021 Report Share Posted January 8, 2021 Have not used tub in few weeks. Opened and seen FLO error. Pump is turning off and on every few seconds. Pump works when on and flow switch seems to work the pump just not staying on. There was a dead rat under tub but do not see any damage. You can hear the relay switching off and on. Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted January 8, 2021 Report Share Posted January 8, 2021 Not uncommon with the small Laing E10 Circulation pumps. Check voltage coming off circuit board going to the circulation pump if you get consistent power but pump is turning on/off. Replace circ pump just make sure you order correct voltage pump 115V or 230V depending on what you have now. Should be a white tag on circ pump that will tell you voltage. Parts Manual here...page 221...: https://www.filtres-spa.com/site/medias/catalogue-pieces-spa-sundance.pdf How to Video here: Quote Link to comment Share on other sites More sharing options...
Brian T Posted January 8, 2021 Author Report Share Posted January 8, 2021 I replaced it few years ago. The relay is turning off and on to the pump. Not sure it the pump. Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted January 9, 2021 Report Share Posted January 9, 2021 Is the flo solid or alternating with the temperature? I suspect it is solid and you have a faulty flow switch. Quote Link to comment Share on other sites More sharing options...
Brian T Posted January 9, 2021 Author Report Share Posted January 9, 2021 10 hours ago, RDspaguy said: Is the flo solid or alternating with the temperature? I suspect it is solid and you have a faulty flow switch. Something telling the relay for the pump to constantly turn on and off. I checked the flow switch and it OK. The pump hardly stays on long enough to get water flowing. I have tech coming next week. He said something about low voltage and could be the board. Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted January 9, 2021 Report Share Posted January 9, 2021 So, you just won't answer my question? Ok. You clearly know more about this than I do. Best of luck. Quote Link to comment Share on other sites More sharing options...
Brian T Posted January 9, 2021 Author Report Share Posted January 9, 2021 3 hours ago, RDspaguy said: So, you just won't answer my question? Ok. You clearly know more about this than I do. Best of luck. I so sorry did did not read your question right. It been a day dealing with my mom alzheimer. It flashing back and forth. Quote Link to comment Share on other sites More sharing options...
Brian T Posted January 9, 2021 Author Report Share Posted January 9, 2021 4 hours ago, RDspaguy said: So, you just won't answer my question? Ok. You clearly know more about this than I do. Best of luck. I so sorry did did not read your question right. It been a day dealing with my mom alzheimer. It flashing back and forth. Quote Link to comment Share on other sites More sharing options...
Brian T Posted January 9, 2021 Author Report Share Posted January 9, 2021 I guess that the heater relay turning off and on. Voltage to pump from black wire to ground 120v and white to ground 120v black to white 240. Guess pump bad. Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted January 9, 2021 Report Share Posted January 9, 2021 Lets start back at the beginning... Remove filters and run without until the issue is fixed. Remove them from the equation. Next open up the main equipment panel and look at the 3/4" line that goes into the front or face of the circulation pump. It can help to use a flashlight and shine it through the 3/4" line and look for air bubbles. This is important to verify that there is no air in the wet end (see below). I will grab the line and shake it a bit to look for air bubbles. You might see it bubble back into the 3/4" line when the circ starts and stops. Clipped from web: The Laing E10 Circ Pump is used on many spa/hot tubs and can be used to replace most brands of circulation pumps with 3/4 inch barbed fittings.This pump uses 40% less energy and runs 40% cooler than previous models. It also includes a smart "chip" in the motor that gradually increases rpm at power up that minimizes impeller cavitation and ensures "air lock" free startups. This cycle will repeat up to 10 times until "prime" is established. If prime is not established, the pump will shut down and require manual restart (turn power to spa off and back on). Does it cut out after trying 10X? When the circ pump starts and it closes the flow switch for a second does the heat light come on and then go the off when pump stops? Yes will tell you the flow switch is good. Also check for air bubbles in the flow switch housing. Let us know results. Quote Link to comment Share on other sites More sharing options...
Brian T Posted January 9, 2021 Author Report Share Posted January 9, 2021 The filters have been removed. I put the E10 in last time. I can not see any bubbles in the line but for the couple seconds when it shoots water in the tub there are bubbles. I had also used water hose yesterday to try squirt water in. After ten times it keeps going. The light comes on for a short time. Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted January 9, 2021 Report Share Posted January 9, 2021 I just did a job on Thursday (Jacuzzi) where the E10 was doing the exact same thing.. cycling on and off. Did all my normal testing and in the end it lead to replacing the circ and all is good. Just say'n 1 Quote Link to comment Share on other sites More sharing options...
Brian T Posted January 9, 2021 Author Report Share Posted January 9, 2021 Thanks for taking time. This been a bad week. Decided to retire and first week of year new dryer, emergency dog visit, have to get couple crowns, hot tub and bad week for mom. Going to winterize tomorrow and order new pump. Quote Link to comment Share on other sites More sharing options...
Brian T Posted January 9, 2021 Author Report Share Posted January 9, 2021 That smart part of the pump is the problem I would guess. Pumps fine when it runs. Quote Link to comment Share on other sites More sharing options...
Brian T Posted January 10, 2021 Author Report Share Posted January 10, 2021 Man my hands frozen. Got it winterized. Will order new pump. That thing only about 2 yo. That really threw me hearing that relay and pump turning off and on about the same time and pumping good when it was on. Thanks CanadianSpaTech. Would prefer to have non-smart pump but guess order same one. Quote Link to comment Share on other sites More sharing options...
DRTG Posted November 25, 2021 Report Share Posted November 25, 2021 I had the exact same problem on my 2001 Sundance Capri. I changed out he flow switch first but that didn't solve the problem. After confirming the filter was clean, I checked to ensure that the pump was receiving constant power (it was) and then changed the circulator pump. I was hesitant to change the pump because I had replaced it just a few years ago. The prior time I changed it because the bearings were clearly failing and it was easy to determine that it was bad. Thanks for the advice on this thread! Quote Link to comment Share on other sites More sharing options...
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