Question about Balboa Instruments Duplex Digital Panel 2 Pump

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Balboa vs500/501/502 gs500/501/502 I just refilled spa yesterday and now I'm getting error codes HL and dr both indicate low flow issues, The water level was re-filled to where it's always been. Any help would be greatly appreicated,Thank you for your time.

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A lot of times you can get an air lock as the spa fills. All you need to do to fix this is open the drain valve for a few seconds till it runs just water and no air. Or start the pump wile the drain is open. This should fix your problem. Good luck.

Posted on Sep 04, 2010

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Hi, I have a balboa 500z series pump. I had to refill the tub today and once the tub was full I restarted the pump only to have the sr display. It states I should reset the pump but, doesn't explain how to do this. Can anyone help?

Posted on Jun 11, 2011

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The power supply is going wrong when the power is going on my fuses in the main power supply is going out. I have all the parts that uses main power unplugged, still goes the main fuse out.

My question now is must I replace the motherboard or is there someone that knows widths part to replace on de motherboard.

My type of motherboard is balboa gs 500 z

Ps I live in the Netherlands Europe so I have 230V

Posted on Mar 15, 2011

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017

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SOURCE: When I put power to my unit. A Sn code appears.

If the SnS or Sn Message is Alternating with the Water Temperature on the Display, it is a Possible Sensors Out of Sync Message.
If the SnS or Sn Message is Blinking or Flashing OFF and ON without showing Water Temperature, it is a Verified Sensors Out of Sync Message. for code info

Posted on Dec 11, 2009

Ian  Hot Tub
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SOURCE: I have a catalina spa with BALBOA CONTROL PANEL

Where are you from?

If you live in the UK give me a call/email as I have worked on lots of Catalina Spas over the years.


Posted on Apr 01, 2010

  • 1 Answer

SOURCE: I have the Balboa 500Z pump heater kit. Its hooked

I have a 6 month old Balboa 500Z. I have noticed that the filter system tis running all the time 24/7. I have reset the filter cycle to run for 2 hours { F2 }. It still is running all the time. It dose not seem to make a difference what I set the cycle for it just keeps running

Posted on Jul 19, 2011

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1 Answer

Low flow message on balboa 500z system

The low flow message on any Balboa means that you are having an issue with the flow of water through your heating unit. This can be caused by a few things.

  • Low water levels
  • Dirty filters
  • Something is impeding your water flow
Top up your water level and make sure it is where it needs to be, clean your filters or replace them, and check that nothing is impeding your water flow at the skimmer or water intakes.

Here is a link to water flow issues.
F2 Error Code Trouble Shooting

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1 Answer

I replaced the pump motor on my hot tub. After replacing it, the motor would not come on. I ended up replacing the circuit board. The motor now comes on, but when it starts to heat I get a HL code. I...

Balboa switched to using two temp sensors a few years ago. So you won't find a flow or pressure switch. One of your temp sensors may be bad. With out knowing which pack you have I can't do much else for you.
I had a few issues with retro fitting these packs in older hot tubs. If the sensors read more than 2 degrees in diffrence the pack will either give you a flow or overheat message. Depending on witch one reads higher. Try swithing them by swapping them where they plug in at the board. If your still getting the same error you may have a flow issue. If this proves to be the case you can plumb in a by-pass allowing some of the water past the heater. It's not recommended by balboa but has solved their temp sensor errors for me in the past.
Also try putting it in test mode. You'll have to look up how to do it for your model. This is done with a dip switch on the board. Then read what the temp reading on temp sensor one and two is. If the reading are more than 2 degrees apart and your absolutly sure the sensors are good create a by-pass. This will solve the issue. Also be sure to put a ball valve on your by-pass to allow for ajustment so that you can get the maximum flow thru the heater w/ out getting the HL error.

Oct 10, 2013 | Pool & Spa

1 Answer

Overheat errors

possible temp sensor bad if ok bad control board

Feb 25, 2013 | Balboa Instruments BALBOA VS500Z PUMP ,...

1 Answer

I have a problem when I turn on my spa the control plannel just shows (= = = )and nothing will work dose any one have any ideas what it could be

Balboa Control Packs -
(---) = Unknown water temperature.

Spa Builders Control Pack -
(---) = "Watchdog". Water temperature has reached 118?F. Entire system is disabled. Contact qualified service technician.

This error code is related to sensor malfunction or failure.
Disconnect and reconnect sensors (while system is disconnected from electrical supply), if that does not help start by replacing the Temperature or Hi Limit sensors.

Jun 03, 2012 | Garden

1 Answer

I have a Balboa VS500Z . The circuit board burned up where the heater buses are located . I replaced the board and the heater . Know when I start the Spa it primes at low speed for about a minute . Then...


DR code - Inadequate water detected in heater.
HL code - Hi Limit, Spa over heat. In your case the Hi Limit is preventing the element from burning out.

This means there is no water or not enough water flowing through the heater.
Common causes:
Hi Limit sensor failure.
Blocked suction, skimmer.
Are the gate valves all the way open/up?
Pump is not functioning correctly, impeller/wet end failure.
These are the most common, but there are also other causes.

I hope that helps

Feb 20, 2012 | Garden

1 Answer

Im getting a f6 code on my digital control topside pack. what is this and how can i fix it

F6 typically doesnt indicate an error. This is usually a programming code that tells you spa to filter every 12 hours.

If it is a FLo code that just looks like an F6, then you need to either replace the filter, replace the flow switch , or make sure the pump is pushing enough water.

Mar 18, 2011 | Balboa Instruments BALBOA 30 kW HEATER W...

1 Answer

We have a brand new Oasis Mohave spa and we wanted to run through a full cycle so we ran the tub for a week, no problems. then we drained and refilled the tub. Now we get dr or dy as error codes on the...

The dr error code is for "dry". Meaning that the control system is not sensing that water is flowing through the heating element.

With a new spa, and you just having drained it , it is probably an air locked pump.
What this means is that you have a small constant circulation pump with not much power, that got ait trapped in it when you drained. When you went to start back up, this "air lock" prevented the pump from fully priming.
Power down the spa at the breaker. Remove the filter element.Stick a garden hose with lots of pressure into the skimmer hole and open the hose valve to let water inject into the skimmer.
Restore power to the spa and check operation.
If after attempting this a few times you still get the code, there is an issue with your flowswitch, or with your circulation pump.
With a brand new spa, id like to hope that you just have an air lock.

Good luck

Mar 16, 2011 | Qca Spas Dream Series Dream Master Hot Tub...

4 Answers

Arctic Spa refill and a heater alarm ''HL''

HL is an error code. You will want to check out the link below to the mfg wesite. Balboa Water Group

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