Hoshizaki FD-1001MRH(-C) Manual De Usuario

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(1) Fill Cycle: If upper float switch remains open 90 seconds after the inlet water valve 

has energized, the control board sounds a 1-beep alarm every 5 seconds. The alarm 
resets and the icemaker automatically starts running again once water is restored or 
the float switch is cleaned or replaced.

(2) Freeze Cycle/Refill: If upper float switch remains open 90 seconds after the inlet 

water valve energizes, the compressor de-energizes and the control board sounds a 
1-beep alarm every 5 seconds. The gear motor continues for another 90 seconds to 
clear the ice from the evaporator. The inlet water valve and 1-beep alarm continue 
until the upper float switch closes. The alarm resets and the icemaker automatically 
starts running again when the upper float switch closes.

When the control switch is left in the "DRAIN" position longer than 15 minutes, the 

control board sounds a -beep alarm every 5 seconds. When the control switch is 
moved to the "ICE" position, the alarm resets and the icemaker starts running again.

(1) 3-beep alarm: For the first and second high pressure switch activation in 1 hour, 

the icemaker shuts down and the control board sounds a 3-beep alarm every 
5 seconds. When the high pressure switch closes, the alarm resets and the icemaker 
automatically starts running again. 

(2) 4-beep alarm: For the third high pressure switch activation in 1 hour, the icemaker 

shuts down and the control board sounds a 4-beep alarm every 5 seconds. This 
alarm is to prevent catastrophic failure to the compressor and requires a manual 
reset. Before resetting, contact your local Hoshizaki Service Representative. Turn the 
power off and then on again to reset the alarm. If the high pressure switch has reset, 
the icemaker starts running again.

The control board starts a 30-minute freeze timer once the upper float switch closes. As 

the water level drops in the reservoir, the upper float switch opens. Should the upper 
float switch fail to close again before the 30-minute freeze timer terminates, the control 
board sounds a 5-beep alarm every 5 seconds. This alarm requires a manual reset. 
Turn the power off and then on again to reset the alarm. The icemaker starts running.

Also, when the lower float switch is open and the upper float switch is closed, the control 

board sounds a 5-beep alarm every 5 seconds. This alarm requires a manual reset. 
Turn the power off and then on again to reset the alarm. For further details, see "IV.E. 
Float Switch Check."

The minimum allowable power supply voltage of this icemaker is limited by the low 

voltage cut-out. When low voltage (9Vac ±5% or less) is present, the "POWER OK" 
LED turns off and the control board shuts down the unit and sounds a 6-beep alarm 
every 5 seconds. When the proper supply voltage resumes, the icemaker automatically 
starts running again.