80s

Fan should only run when compressor is running

The compressor should be always running, the fan should stop on the Harvest cycle

The E Board (Green) was the main control board used for Hoshizaki ice machines starting in the late 1990s. It was full of features the previous board did not have. Including lights and audible safeties and alarms. The G Board (Tan/Brown) was created several years ago as a water saver control board to go with California water conservation laws. This changed water valves and bin controls to keep the unit from wasting as much water on pump-out cycles. It too has many of the same features of the E board just slightly improved. For more information, please contact Hoshizaki Tech Support at 800-438-6087

Information taken from Hoshizaki's Troubleshooting Guide: The water pump itself can be easily tested by putting the unit in wash mode via the 3 position toggle switch found at the top of the ice maker. You must however also confirm the operation of the water pump in conjunction with the control board. When the unit begins the freeze cycle, the water pump and condenser fan motor should energize on self-contained units (with remote units, the condenser fan starts with the compressor). If the water pump fails to run, check voltage from the control board K1 connector (red wire) and you should see it running at 110 volts. If not, it is a good idea to verify that the board is actually in the “freeze” cycle. If you find there is power running to the red connector of the pump and it's still not functioning properly, next check the toggle switch. For more information, please contact Hoshizaki Tech Support at 800-438-6087