Yes. Thank you for "approving" my answer, as I have been credited!
Since you have a volt meter, this is how to check the "Filter Pump Relay".
Remove the panel on the AquaSwitch Control Center:
The relays are located in the lower left corner. The relay on the top left should be for the pump. There are 4 screws on the bottom of each relay. From left to right, the first one is "Line One", next is "Load One", next "Line Two", and "Load Two".
If the pump is wired for 240 volts, you should NOT read this at "Load One" and "Load Two" if you have turned the pump off at the switch. If you have the pump OFF, but are getting readings at these two terminals, Then the relay is closed.
You should NOT get a 24 volt DC reading at the coil if the pump is OFF.
Let me know what you find!