Question about Balboa Instruments Duplex Digital Panel 2 Pump

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I just bought a used balboa hot tub and have no expertise. Does the pump kick in automatically even when you turn it off it will turn back on instantly? Is that normal? If it is not normal what could be the problem? It turns on at least 5-8 times an hour.

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  • 331 Answers

This does not sound normal, but in order to better diagnose this I need to know exactly what model of controls your spa has. This is easily found on a label on top of the control box in the spa cabinet. If the label is missing, then remove the control box cover and look at the inside of the cover for the schematic, should be a model number on it.

Posted on Aug 30, 2010

  • febuout Sep 07, 2010

    I think this is the model number -- DU-OK50D-DCAH.
    also says 60 Hz everything else is either faded or washed off.

  • Charles East
    Charles East Sep 07, 2010

    Let's try another way... Please describe how many buttons and the function for each as labeled. If you want to send pictures by email ,


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Here is a link showing the most common error codes for hot tubs using Balboa Instrument spa packs.

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Bought hot tub used need to know what size supply wiring and breaker I need

Check your heater/pump/lights/accessories. These should all have electrical ratings. Your supply wire should be large enough to carry the combined amperage of everything running together. I personally would separate each system in the breaker box, 1 for pump, 1 for heater, 1 for accessories.

Apr 09, 2013 | Pool & Spa

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Balboa hot tubs..I just bought a used Balboa DU70CCAH hot tub. I need to know whether to use 8.3 or 6.3 from the tub to the breaker box. It looks like it is 8.3 wiring inside the tub on the panel but thats...

It will depend on how far away your breaker is from the control box. General rule of thumb is the larger the wire the better.
One of the biggest problems in our industry is customers end up going with a smaller wire because it will work and it is much cheaper.
Amp draw through a smaller wire from a long distance will kill your hot tub electronics over time.
The bigger the wire the better.
I say use the #6 size wire.

Jan 25, 2013 | Garden

1 Answer

Balboa 52502 val 5m7

have you cleaned your filter recently. Sound like there may be a low flow error in low speed
either that or the start capacitor on your pump is bad and the pump will not come on in low speed unless you first give it a boost in high speed
anytime you ask for heat with insufficient flow there will be an error message

Jun 21, 2012 | Balboa Instruments Pool & Spa

1 Answer

I have installed a brand new 4 hp pump and a brand new Balboa heat and control package. I have wet vacuumed all the jets and removed filter. Pump is still weak and kicks off after awhile. How do I...

most of the jets in a Hot Tub are adjustable. the face of each jet can turn on/off. Make sure they are all open or you will not have good water flow and cause too much back pressure on the pump and cause it to fail.
check the jet faces when you turn the pump on.
also a dirty filter will cause low water flow so check that too. take it out and see what pressure you get through the jets.

Jan 29, 2011 | Home

1 Answer

We recently purchased a Balboa hot tub from our neighbour. It is one year old. It was running fine for the first week or so but now we notice that once the jets kick off the pump is running constantly. ...

This is probably just a programing issue. You should see if your neighbors still have a book for the tub. If not you can probably get one on line. You will need to try Balboa with the year and model #. You will also need to check your control box in case it comes from another manufacture. Make sure that you use all the numbers and dates on the box as they can change things a couple of times. Mine is a five year old sundance and for the model I have they had three books for that year and two styles for one and two motor models.
When you get one go to how to clear memory then start from scratch. It may seem like a pain now but when you get hot bubbles at the push of a button you forget all the trouble.

Oct 20, 2010 | Balboa Instruments Duplex Digital Panel 2...

1 Answer

Hot tub tries to start up and kicks off

Thank you for posting your question here on

With your meter check to see if the motor is still getting voltage when it kicks off. If it is the motor needs servicing. If not, look for which component (such as the relay) is dropping line voltage and replace it.

If this answer does not fix your problem, please comment with additional details prior to rating the answer. Positive feedback is appreciated once your problem is solved!


Apr 24, 2010 | NRS Digital Spa / Hot Tub Controls

2 Answers

My hot tub pump will not stop running even after it has reached temperature and completed it's cycle. I have a Balboa Instruments control unit. Any suggestions?

sound like you have the filter cycle set to fc means filters all the time try to push temp button and then pump button. in sequence you want it to be f2 means filters 2hrs every 12 hours

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