Replacing the water level probe in your commercial ice machine can help bring it back to life, but it's always important to troubleshoot first before picking up the replacement. The IMM water level sensor directly replaces part A39030-021, making it a great choice if you're looking for an easy fix. It offers superior durability and ensures compatibility with select Scotsman ice machines. Plus, this amazing device prevents the machine from overflowing by sending a signal to the control board when enough water reaches it. So don't just settle for any run-of-the-mill part - get the IMM water level sensor and restore your ice machine today! Installation Safety Tip: Disconnect your ice machine from its power source prior to the repair. Simply turning the machine OFF isn't good enough. Replaces the following parts : A39030-021, A39030021 and SCA39030-021 Compatible models include but are not limited to: C0322, C0330, C0522, C0530, C0630, C0830, C1030, C1448, C1848, C2148, EH222.