AquaLink RS8 - all lights on, no control over equipment

gbrenham

Well-known member
Apr 4, 2017
62
Cypress, TX
I had an issue where I think the inside of the external AquaLink RS Control near the pool equipment got water inside. Now all lights on the inside AquaLink RS8 are on and is displaying the revision number (6700 Rev. C). Outside there are lights on the panel (if you can't see it - the following is lit: Auto, Time Out, Filter Pump, Cleaner, & Water Fall - all other lights are not lit).

I've read where it could be the while PCB board in the controller or the transformer...both outside.

Things I've checked:
  • Breaker box in garage is on and supplying power (i.e. lights are on both controllers inside and outside)
  • GFI is not tripped. Clicked TEST and then RESET
  • Measured like 121 v at the GFI below the panel
How do I determine which if the issue is the board or the transformer? I'm assuming I need to test both these components with a multimeter. Need specific directions...pictures even better! Think "Multimeter's for Dummies"?

If I have to purchase something, is there a way to bypass some of this control equipment and get the pump & filter working temporarily?
 

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gbrenham

Well-known member
Apr 4, 2017
62
Cypress, TX
Check Section 5. Troubleshooting on page 40


Looks like the screws on the RS-485 terminal (red block) have rust. Power down the panel, remove the wires and see if you clean them up and then reattach the wires.
Yes, I've seen the troubleshooting guide & read other posts referring to this as well. It was the basis of my question on board vs. transformer.

Btw, the fuse is not blown on the PCB.
 

guinness

Well-known member
May 3, 2019
481
California
Yes, I've seen the troubleshooting guide & read other posts referring to this as well. It was the basis of my question on board vs. transformer.
So which of the two below matches your situation? What happened after you removed, cleaned and reattached wires?

SymptomProblemPossible Solution
All LEDs are on at the control panel and the part # and revision letter of the control panel software are displayed. The override switches at the power center operate as they should.Control panel is not communicating with the power center PCB.Check the two center wires (black & yellow) of the four conductor cable. Also check the installation of the CPU Board on the power center PCB. If the PPD is not seated correctly the system will not communicate.
All LEDs are on at the control panel and the part # and revision letter are displayed, but override switches at the power center do not operate at all.1. Damaged or improperly installed CPU Board.
2. Damaged power center PCB.
1. Check alignment of the CPU Board.
2. If CPU Board is installed correctly, replace the power center PCB.
 

gbrenham

Well-known member
Apr 4, 2017
62
Cypress, TX
So which of the two below matches your situation? What happened after you removed, cleaned and reattached wires?

SymptomProblemPossible Solution
All LEDs are on at the control panel and the part # and revision letter of the control panel software are displayed. The override switches at the power center operate as they should.Control panel is not communicating with the power center PCB.Check the two center wires (black & yellow) of the four conductor cable. Also check the installation of the CPU Board on the power center PCB. If the PPD is not seated correctly the system will not communicate.
All LEDs are on at the control panel and the part # and revision letter are displayed, but override switches at the power center do not operate at all.1. Damaged or improperly installed CPU Board.
2. Damaged power center PCB.
1. Check alignment of the CPU Board.
2. If CPU Board is installed correctly, replace the power center PCB.
Second scenario. I cleaned the red block (water & baking soda). Now no lights on the outside board at all. Inside controller the same - all lights on
 

guinness

Well-known member
May 3, 2019
481
California
Second scenario. I cleaned the red block (water & baking soda). Now no lights on the outside board at all. Inside controller the same - all lights on
Cleaning terminal connector might have helped with the first, but the second scenario seems like a bad board in the outside panel.
 
Last edited:

Rossterman

Well-known member
Jun 5, 2016
504
Martinez, CA
There is a guy who will rebuild them for $150 in santa rosa ca. Also you could update to a iaqualink controller which comes with a new board And allows you to ditch the old controller and do everything off your phone Using the internet and wifi connection
 

gbrenham

Well-known member
Apr 4, 2017
62
Cypress, TX
Thanks everyone! I did utilize BP Engineering in CA. He fixed me right up! Highly recommend if you need repair on your PCB. In the interim, my motor froze up...if it not one thing it's another...thanks 2020! Now off to post another single vs. dual vs. variable speed post!
 
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