Please read the following instructions if your Evolve Standard Chiller is showing error code P23 on the UI. 

This error means that the compressor was running without water flow with either the valves turned off or water pump not running. The inlet vs outlet temperature got to a difference of over 20F and so it shut down and went into an alarm state to prevent damage.

Solution: Turn the power off at the GFCI by pressing the "Test" button and then back on by pressing the "Reset" button. 

If you need further assistance please reach out to customer service at support@plunge.com.