I have a fairly new 3155 ATO, been using it since about 10/01/2020 with no issues. I had it unplugged for a couple weeks for unimportant reasons. Plugged it back in yesterday and it's not working properly. It beeps as normal and then starts filling the container with a bit of water, but stops well below the sensor and the controller reads level. I tried:
* Unplugging and plugging back in. Same behavior.
* Wiping off the sensor and then unplugging/plugging back in. Same behavior.
* Manually toggling float switch on/off. It beeped when I pushed the float up, and the beep stopped when I let it back down. Same behavior.
* Verifying the wire connections that lead into the pump-took them out and put them back in to be sure. Same behavior.
How do I troubleshoot this further?
* Unplugging and plugging back in. Same behavior.
* Wiping off the sensor and then unplugging/plugging back in. Same behavior.
* Manually toggling float switch on/off. It beeped when I pushed the float up, and the beep stopped when I let it back down. Same behavior.
* Verifying the wire connections that lead into the pump-took them out and put them back in to be sure. Same behavior.
How do I troubleshoot this further?