Viewing the Heratherm Oven and Incubator Main board Firmware-Software

This article explains how to view the main board firmware-software version on Heratherm Ovens and Incubators. It details steps for both General and Advanced Protocol controllers. Accurate firmware identification is crucial for ensuring compatibility with new circulation fan motors. Firmware versions A through I expect a tachometer signal, and installing new fan designs with these firmware versions results in Error E-009. Firmware version J or higher is required to avoid this error.