Hot tub circulation pump keeps shutting off

2004 Sweetwater Bahia model: Heater wiring on circuit board burnt. Drained spa. Received updated / replacement part numbers from Sundance. Replaced circuit board and heater unit. Refilled spa. FL2 on panel kept coming on and shutting off circ pump / heater. Called Sundance, told to replace flow switch. Replaced flow switch. Everything works fine for 2 – 3 days. Have temp set at 102, F1 or F4 skimming / heater mode. Now circ pump turns off between 12 hour cycles. No error messages displayed on panel. If I change modes circ pump will not come back on. If I turn off / turn on spa at wall junction box, circ pump starts working again. Then some time before next cycle it turns off again. No error messages. Please help. Thanks

Replies

  1. Nigel

    Reply

    Hi George. What is the part number of the new board and eprom revision of the eprom chip on the new board?

  2. Tony Paolino

    Reply

    we just had a pump replaced and a relay switch on our 2005 Calspa. model 05-5XCA-60 serial 05S09919 . After the repair we noticed one of the jets was lying on the bottom of the tub. The tub was running twice a day no problems until tonite, after the relay switch was put in. The jets went on and then pop.. everthing shut down. Nothing works and its not the breaker switch Any ideas of what this could be?

    • Nigel

      Reply

      Hi Tony. On the surface sound like you could have blown a fuse. I would check your main fuse first.

  3. Tony Paolino

    Reply

    Hi Nigel,
    Thank you for your response. I emptied the hot tub to clean it and refill You were right about the blown fuse.
    However, after replacing the fuse, everything worked until I turned the jets on and the same fuse blew again. I replaced it again but have not turned the jets on yet. Why would the same fuse blow again? Any suggestions?
    FYI we recently had one of the pumps replaced. would this have caused the fuse to blow?
    Thanks

    • Nigel

      Reply

      Hi Tony. Yeah it sounds like that pump that is tied to the jet pump button you are pressing could be locked up. See if you can turn the shaft manually. If the shaft is freewheeling then check your wiring to the pump and to the board to make sure it is wired correct and there are no breaks. If the shaft is not freewheeling and it’s binding then you will have to loosen it or figure out why it is binding ie if it is plugged or there is an issue in the wet end at the impellor.

  4. Donald Puda

    Reply

    2003 Sweetwater Bahia hot tub. Everything was working fine until electric company changed out house meter, tub showing FL1 code. Replaced flow sensor[deposits on switch] and now circ.pump cycles on and off. can hear the relay clicking with it. I hope I don’t need a new comp. board. any ideas? Got hit with 20inches of snow, not a good time for this to go down.

    • Nigel

      Reply

      Hi Donald. Sounds a dirty filter, low water level in the spa, sticking weir gate assembly and or a plugged circ pump or circ pump line. Easy enough to check if it’s the filter. Simply remove the filter briefly ie 15min and see if the FL1 code clears. Make sure the weir gate moves up and down freely. Water should be touching the bottom of the head cushions on a level spa.

  5. Donald Puda

    Reply

    Topped off the water, removed the filter, and replaced flow sensor. Circ. pump keeps cycling on and off. Can hear relay switching.

    • Nigel

      Reply

      Try disconnecting your top side control panel and then power cycling the spa. If the circ pump comes on and it doesn’t cycle like you have said here then you could have a bad topside or bad connection at the topside.
      If the circ pump continues to cycle you could possibly have a bad circuit board and or bad circ pump Donald. Let me know if you need either. They are both in stock.

  6. Derrick Reschke

    Reply

    Had a Balboa circuit board BP 501 replaced it with a BP 501/601 matched everything up with the old board was everything works except pump 1 light stays on the Tropic Seas Spa controller, the circulating pump is running but when pump 1 button is pushed the circulating pump turns off and pump 1 turns on. Any idea.

    • Nigel

      Reply

      Sounds like some of your dip switches may not be set correctly Derrick.

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