Hoshizaki Ice Maker Beeping – Not Making Ice

“The Hoshizaki ice maker beeping caught my attention, prompting me to call you for service,” is a commonly heard expression when clients call in for service. We are going to help explain what it means.

Many Hoshizaki ice machines, including the countertop ice maker machine, come equipped with safety features designed to halt ice production upon detecting faults. When such faults occur, the unit emits a loud beeping sound to alert users. Need to schedule a service appointment or wanna learn more about our ice maker services. Call 832-588-4315.

The alarm produces a series of beeps followed by a brief pause and then repeats the sequence, indicating the type of fault detected. It’s crucial to note the number of beeps to identify the specific issue before proceeding with a reset. Let’s explore the three most common faults and their potential causes.

Hoshizaki Ice Maker Beeping Once Every Three Seconds

This fault signals a High Evaporator Temperature, indicating that the temperature of the evaporator has surpassed 127°F.

Possible causes for this fault include:
– The hot gas valve, or harvest valve, may be stuck open, leading to continuous flow of hot vapor to the evaporator plate, causing the temperature to exceed the limit.
– The water supply to the unit might be hot water, possibly due to accidental connection to a hot water source or if the water line passes through excessively hot environments.
– The temperature sensor responsible for triggering the fault may be faulty or inaccurately sensing the temperature.

Hoshizaki Ice Maker Beeping Twice Every Three Seconds

This fault indicates a Long Harvest Time, meaning the harvest cycle exceeded 20 minutes two times consecutively.

Common reasons for this fault include:
– Slow inlet water fill or a clogged water filter, hindering the proper filling of the reservoir and affecting the harvest cycle.
– Failure of the hot gas valve to energize or being stuck closed, preventing proper heating of the evaporator plate during harvest.
– Faulty or inaccurate evaporator temperature sensor, providing incorrect temperature readings to the controller.

Hoshizaki Ice Maker Beeping Three Times Every Three Seconds

This fault suggests a Long Freeze Time, where the freeze cycle exceeded its maximum duration setting, usually around 50 or 60 minutes.

Likely causes for this fault are:
– A stuck or dirty water float switch, preventing the float from moving freely and initiating the harvest cycle.
– Inlet water valve not sealing completely, allowing additional water into the reservoir and extending the freeze time.
– Malfunctioning water pump, resulting in insufficient water on the plate to freeze and initiate the harvest cycle.

Resetting the Hoshizaki Ice Machine

Pressing the reset button on the control board clears the fault beep alarm and allows the unit to restart. Locate the Alarm Reset button on the top-upper left of the control board and press it after identifying the fault. Ensure power is supplied to the control board during the reset. If the underlying issue causing the fault is not addressed, the unit will shut off again. For safety and proper repairs, it’s advisable to consult an ice machine professional and not attempt yourself since live voltage will be present.