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Thin ice why is my ice machine making ice so thin right after i had fix the leak and charged the refrigerant without the scale am i over charged

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  • Freezers Master
  • 2,651 Answers

Before trying anymore repairs , you should chemically clean the uit, this will definalty improve performance., undercahrged might also be issue

Posted on Apr 12, 2008

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Water is leaking out drain during cycling; cubes are thinner than normal. Does water valve need to be replaced or check rubber gasket?


Just above the pump there is a check valve that may be stuck open
during operation which will cause thin ice. Also make sure you have the o-ring on the bottom of the drain tube if it was removed during cleaning.

May 20, 2014 | Hoshizaki Freezer Commercial Ice Machines...

1 Answer

Early harvest no ice or thin ice


There is an adjustable potentiometer in the pcb section. Adjust it to give a thicker cube. Also check water pump and clean any scale buildup from the sprayplate. If all else ok and still no ice suspect evaporator sensor.

Aug 06, 2012 | Hoshizaki Freezer Commercial Ice Machines...

1 Answer

I Have A KM-900MRH Ice Machine Hoshizaky i, recently changed the water pump, and now sims to be that ice is really thin, and is not making enough.


adjust the float (White plastic with black rubber bottom) item next to the water pump. It needs to be all the way down. Loosen the 2 screws and slide it down all the way. This is what controls the size of the ice cube. Other possibility is that there is water leaking our of the sump causing and early harvest cycle to start. Look for both.

Sep 13, 2010 | Hoshizaki Freezer Commercial Ice Machines...

1 Answer

Model km-250baf hoshizaki with weighed in correct amount of 404a the head preasure risies to over 400 psi i think it is the txv advise me if i am right


There are a lot of variables that cause high head pressure. Be sure the cool ing fan is operating properly. It should come on whenever the condenser coil feels warm to the touch. It will cycle on and off as the pressures change. A clogged up coil will also cause high head pressure. If you don't have sufficient water flowing over the evaporator plate, where the ice freezes, the head pressure will go up. You need to check the low side head pressure as well. Weighing the charge is a good start to charging the machine , but the first question I would ask is why are you charging it? Was there a leak, or compressor change?
If you had a compressor burnout, did you replace tthe drier-filter?If not, it may be stopped up from burnout residue. That will also cause high head pressure. If you did not vacuum the system there may have been refrigerant still in the system before you started the new charge. Check the items I mentioned and see if that helps.

Sep 04, 2010 | Hoshizaki Freezer Commercial Ice Machines...

1 Answer

I hooked a used unit up turned it on and got 3 beep any answers


this indicates that the backup freeze timer terminated the freeze cycle. Stayed in freeze cycle 60 minutes. Causes can be: stuck float switch, water valve leaking incoming water, and the more extreme can be hot gas valve leaking, txv not feed properly, low refrigerant charge, or bad compressor. Usually one of the first 2 items are the root cause.

Aug 21, 2010 | Hoshizaki Freezer Commercial Ice Machines...

1 Answer

Hoshizaki ice machine makes ice but won't drain. Makes ice but won't drain properly, after about 3 or 4 days water starts leaking out of the machine onto the floor. Removed all ice and water and repeated...


My first question is, does the drain have a vent in it? If not, you may need to install one to be able to break the vacuum experienced when the unit flushes after a drop of ice. The vent will be a tee off the drain and a stand pipe that goes up about 5-10" vertical. My next question is has the drain in the plumbing (not the ice machine) been flushed, snaked or tested to see if it can handle the amount of water the ice maching dumps?

Jan 17, 2010 | Hoshizaki Freezer Commercial Ice Machines...

1 Answer

Beeps 3 times when turned on


3 beeps means the machine has ran two 1 hour cycles back to back to make ice an average timeframe for ice making is 25-30 min. Could be several issues, float switch dirty, water valve leaking by, dirty spray tubes, dirty evap., then go to refrigeration Expansion valve, compressor, charge, Hot gas valve leaking by,,,,,

Jun 23, 2009 | Hoshizaki Freezer Commercial Ice Machines...

5 Answers

Beeping Ice Machine


I have a Hoshizaki KM-250BAF that is making 3 beeps then pauses and them makes 3 beeps again. If I unplug the ice maker and plug it in it continues to make the 3 beeps. The manual does not mention anything about beeps. Can anyone help?

Jul 09, 2008 | Hoshizaki Freezer Commercial Ice Machines...

3 Answers

Hoshizaki Ice Machine Model KM-500MAF


(Quated From Hoshizaki Technical Bulletin)
An alarm code of 3 beeps
every 3 seconds means that the control board has shut
down on the 60 minute freeze cycle back up timer.

The “E” control board has a 60 minute timer that starts at
the beginning of the freeze cycle. If the float switch fails
to open and start the next harvest within 60 minutes, the
board will automatically start the harvest cycle. If this
occurs in two consecutive cycles, the control board will
shut the unit down on the manual reset, freeze cycle
back- up timer. The yellow fault LED marked “60 min.”
will illuminate. This safety is designed to help prevent a
freeze up of the evaporator.

Once you have identified the 60 minute alarm, there are
several things to check. Reset the alarm by depressing
the white reset button to the right of the fault LED’s.
This must be done with the power “ON”. Now check the
float switch to see if it is stuck in the up position. A stuck
float can occur if scale is present on the reed switch
shaft inside the housing. To check it, drain the water
reservoir, unplug the black float switch connector (K5)
from the control board and check it with an ohm meter
for a closed switch (zero ohms). If the float switch is
sticking, clean it with ice machine cleaner or replace it as
necessary.
An inlet water valve which is slowly leaking by during the
freeze cycle can cause a 60 minute alarm. If the inlet
water valve is stuck wide open, it is unlikely that any ice
will form on the evaporator. Check for a slow leak by
allowing the unit to cycle into the freeze cycle and
disconnecting the hose at the outlet of the water valve. If
water leaks by during the freeze cycle, the water valve
diaphragm is likely damaged or the small diaphragm bleed
port is clogged with scale. Clean the bleed port or replace
the diaphragm or entire water valve as necessary.

(I Recommend to get a refrigeration tech for this part).

Another possibility is a refrigeration system problem. You
should use normal refrigeration diagnosis procedures to
check for one of these problems. If the thermostatic
expansion valve is not feeding properly or the refrigerant
charge is low, the evaporator will not form ice as it should
and a long freeze cycle will occur. This could also be the
result of the hot gas valve not closing completely during
the freeze cycle or if the compressor valves are weak or
inefficient. An inefficient compressor however, will
usually show up first on the KM model through a longer
than normal harvest cycle. This is because of cooler
than normal discharge gas. Use proper refrigeration
practices to repair a refrigeration system problem.
While these are not the only reasons for a 60 minute
freeze cycle, they are the most common and should be
checked to resolve a 3 beep/yellow fault LED alarm.

Feb 27, 2008 | Hoshizaki Commercial Freezer KM-500MAH

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