Hello - My old heater's control panel was fried. So I am trying to control the heater using a new AquaLink Z4 Controller that I just purchased and installed. I connected the heater to the AUX 1 Relay and I can get the heater to fire up by turning on AUX 1. My problem is that this setup seems oblivious to water temperature. The water temperature settings pool and spa controls (on the AquaLink) do not seem to control the heater at all. The heater doesn't turn on when below the temperature and doesn't shut down when above target temp. I have to manually turn the heater on/off via the AquaLink control panel.
I do not have a "control" wire from the heater.
Anyone have any advice?
I do not have a "control" wire from the heater.
Anyone have any advice?