It would help if you could supply the wiring scheme you used and the pinout of the LED.

I have it set up for one to get darker with rising temp on a selected sensor and the other to get brighter with rising temp. HTH

Actually, Top_Nurse : what you have there is a dual-color LED, NOT a tri-color LED. The LED has only 3 pins instead of 4 : 1x pin for Ground (GND) + 1x pin per LED color...

The fact that you have amber color means that both the red and the green LED's function properly because the amber color is produced by mixing both red and green together, i.e. : providing power to both the red and green wire simultaneously. It's the same system that is used in our TV and computer screens (the well-known RGB "Red-Green-Blue" color system, you might have heard of it ?), but your dual-color LED is a simplified version with only 2 instead of 3 base colors.

What fox3 said is correct : you need to set up the "LED Parameters" for LED 1 and LED 2 so that they both use the same sensor(s). The difference is that you need to set up LED 1 to go darker and LED 2 to go brighter as the temperature rises (or vice versa, it depends on how you connect the wires to the LED). That should make LED 1 light up when the temperature is below the LOW threshold, LED 2 to light up when the temperature is above the HIGH threshold, and both LED 1 + LED 2 light up when the temperature is somewhere in between the LOW and HIGH threshold.
The exact "mixture ratio" of the 2 colors is determined by the sensor output value (where LED 1 gets 0-100% power and LED 2 gets the remaining percentage, like a linear cross-fader).

Zitat von »Top_Nurse«

Thanks for the reply.

Makes more sense now, but they still calll them Tri-LED's here in the states.

Yeah it is a little confusing, technically it is not a "Tri-Colour LED" but an "RGB Led" (has 4 pins) that you need as mentioned. If you have the funds I would recommend getting one, in fact the AquaComputer one comes pre-wired to save you the trouble but is a little more expensive.