How Does a Hoshizaki E Controller Board Work?
In the late 1990s, the E Controller Board was introduced by Hoshizaki. This component added a variety of new and exciting features to Hoshizaki ice machines. This guide looks at some of the features available with this controller board and why it's crucial to the ice-making process.
E Controller Board History
First, a little history. The board was field tested and featured over the course of 1997. Technicians and designers tweaked and refined the controller board until it was ready for the main event – your kitchen! These boards added a ton of new features to ice machines, in addition to being smaller and more powerful.
E Controller Board Features
The E controller board plays a major role in making ice, thanks to a few components and features. Below is a breakdown of part.
6-Minute Maximum Water Supply Period
The water solenoid valve opening is limited by the defrost timer, which ensures the valve cannot remain open longer than the maximum period of six minutes.
Defrost Timer
The defrost cycle starts when the float switch opens – but the defrost timer does not start until the themistor senses the proper temperature.
High Temperature Safety Controls
The high temperature safety helps limit the temperature of the suction line in the refrigerant circuit. If the themistor senses a rise to the maximum temp level, the safety shuts down the circuit and automatically stops the icemaker, helping protect your unit.
Low-Water Safety Controls
If the pump motor is operated without water, the mechanical seal in the machine can fail. The controller board helps prevent this by checking the position of the float switch at a predetermined time and at the end of each defrost cycle. The low water safety controls will ensure that a water fill cycle is run before the ice making cycle if the float switch is in the down position.
High Voltage Protection
If the maximum allowable supply voltage is reached or exceeded, the High Voltage Cut-out feature will shut down the circuit and stop the icemaker to prevent any damage. This is one of the problems diagnosed by a Hoshizaki ice maker beeping.