Pump won’t shutoff

Lyonmt

New member
Feb 2, 2024
4
Trinity, FL
Hello all,

I think I have a problem with my timer. It has been working fine for years, but the other day it started acting up. It is set to turn on at noon and off at 8pm. It will turn on at noon like it is supposed to, but then won't turn off at 8pm or at all. Meaning the [Filter] button will not turn the motor on and off like it should. I cannot put it in service mode and stop the pump either. To turn off the pump, I have to shut everything down with the breakers. Then turn on the Aqualogic unit. Then turn everything else on ten seconds later and then I can turn the pump on and off at will. The next day at noon, the pump will turn on as it should, but then at 8pm it continues to run and I cannot turn it off unless I reset the system again.

All of the relays work fine. I swapped relays anyway and it does the same thing. I also know that the relays work fine, because after I reset the system, they all work properly.

Any suggestions as to where to go from here is appreciated. Thank you!

It’s a Hayward Goldline AquaLogic AQL-PS-4
 

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Common problem with those.
I just wired an Intermatic T104 timer to the line side of the relay, and the pump to the load side of the timer.
That takes care of the pump cycle, the main panel is still used to manually operate lights and fountain. Customer ok with that.
 
You can move the AUX1 relay to the filter relay position or just get a new relay.


 
It's pretty easy. Turn off all power, remove the wires from the relay, remove one of the screws at the base of the relay, loosen the other screw, remove the relay, install the new relay, tighten both screws, reinstall the wires like they were.

If you have an unused relay, you can use that as a replacement or you can get a new relay.

If you take an unused relay, tape off the small coil wires so that they don't touch anything. They should not be powered if the relay is not being used, but it's safer to cover each with a small piece of electrical tape.

Post some pictures if you need more help.




G7L-2A-BUBJ-CB%20AC200%5E240.JPG


The two top screws are where the small wires from the control board connect. They supply 24 volts dc to close the relay.

The bottom 4 terminals are where the power wires connect.

You can see the base has two slots where the screws hold it in place.

Mark the wires and take pictures before removing the wires so that you can put them back correctly.
 

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