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Hot tub pump running unexpectedly

My hot tub control turns on low speed while on the off cycle. It runs for about 5 seconds and then turns off. It continues to do this every minute or less.

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  • Colin D Howard
    Colin D Howard Dec 27, 2013

    Nu Wave 2000 spa pack older model

  • Colin D Howard
    Colin D Howard Dec 29, 2013

    When it turns on unexpectedly the low pump light does not turn on, when low pump is running

  • Colin D Howard
    Colin D Howard Dec 29, 2013

    When it turns on unexpectedly, the low pump light is not on. when it runs normally the light is on. All functions work fine when running off of timer and air switches.

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  • Master
  • 3,103 Answers

Check the heater setting.. it may be the heater demanding cooler water to go through..it will cycle as needed by the heater..

Posted on Jan 11, 2014

4 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 990 Answers

SOURCE: Motor is hooked up correctly according to

You have 220v running into your motor, the red and the plack are in most cases the same 110v line and what your calling a white netural is a common line. In other words the second half of your 220v line. If your red and black are the two opposing 110v lines that make up your 220v and they are put on the motor and turned on they short aginst each other and blow the breaker. One of your 220v lines should come into your hi -low switch and then split to your high and low on the pump. The other half of your 220v line will go to the common or what your calling nuteral. The difference is a netural completes a 110v circut and a common completes the 220v circut it will take to run the motor. One of the splits will complete the low speed circut and the other will complete the high speed circut. You need to check your voltage comming into the spa, the way the spa is wired (110v-220v), and how the motor is wired (110v-220v). For your spa this will be in your owners manuel or on a scematic inside a panel or door and is quite often a plug you change from one spot to another. On your motor will have a scematic on the back of the motor that will tell you haw to adjust the wireing already in place on the wire board of the motor. This may sound deep but if all your voltages are set the same and your high and low are the same leg of power, this should fix your problem.

Posted on Oct 31, 2009

  • 366 Answers

SOURCE: I have a 2004 great lakes hot tub with a balboa

check to see that the flow switch is working properly, it may not have enough flow on low speed to allow the heater to turn on. Make sure your filter/s is/are clean. If you have a pressure switch instead of a flow switch, it may need to be adjusted or replaced.

Posted on Feb 09, 2010

Ian  Hot Tub
  • 77 Answers

SOURCE: Intermittent jet problem on Spa form hot tub

Hmm, that's an odd one. It could be either a fault with the PCB or the pump.

The first thing to check is the voltage to the twin speed pump. If that's ok the motor is probably the cause of the fault.

As always, with anything electrical you need to be very careful with what you're doing and if you're unsure seek professional help.

Regards,
Ian.
http://hottub.synthasite.com

Posted on Apr 17, 2010

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