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How do i attach evaporator plate to bank on hoshizaki ice machinee

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  • 30 Answers

Would you be more specific, please? If you are considering replacing an evaporator plate on the machine, I'd advise against it unless you are in the trade,

Posted on Jan 04, 2015

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Posted on Jan 02, 2017

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  • 1175 Answers

SOURCE: Hoshizaki ice machine KM500-MAE not sending water to harvest

I would not change the pump. If it runs for 3-5 minutes and stops, it has to be a control. The control board runs the freeze cycle for the first 5 minutes. This prevent "Short Cycling" of the freeze cycle. The board looks at the float after the first 5 minutes for the proper water level but should not effect the pump. If the pump does not run in the wash mode, check out the "Power/ Wash" switch. I would start there before I go spending hundreds on pump motor or control board. You may be able to get by on a $20 fix! Do this and get back to me. We will get it going.

Good Luck

Posted on May 08, 2009

  • 117 Answers

SOURCE: Freezer Commercial Ice Machines - KM900MRH Commercial Ice Machine: my hoshizaki under the counter ice machine gradual...

Check to be sure the check valve is not leaking by. This will cause reduced capacity as they are controlled from water level. Remove, clean, and re-install the check valve and check its operation.

Posted on May 21, 2010

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SOURCE: hoshizaki ice maker am-50bae . made ice regularily...

make a few quick checks. If there are water filters on the system, be sure they are not restricked. Could be clogged. Next, check the bin stat. It usually is mounted in the ice bin. If it breaks or goes bad, it shuts down the machine. Start there and let me know if I can be of any further help.

Posted on Jun 26, 2010

woodchuck789
  • 4070 Answers

SOURCE: ice up on the coil

DEFROST PROBLEM The evaporator coil behind the cover on the back wall inside the freezer will ice up under normal conditions. Every 8 to 10 hours for around 20 minutes the defrost timer (or in most newer models the electronic adaptive defrost control) will turn the defrost heater on to melt the built up ice. There is a defrost thermostat which prevents the heater from overheating the freezer by breaking the heater circuit when the temp reaches close to 32 degrees F. The entire cooling system shuts off during the defrost cycle and starts back when the timer advances through the cycle.
If this ice is not melted it will continue to build up until the air can’t flow over the coil to circulate the cold air through the freezer and into the fridge. The temperature change in the fridge is usually noticed first followed by the freezer.
If the defrost thermostat is bad, it can prevent the heater from coming on OR it won’t turn the heater off when it gets too warm. It is clamped to the evaporator coil at the top to sense the temp. If it appears to be misshapen it is bad. With an ohm meter it should show continuity when cold and none when warm. You can also bypass(disconnect the two wires plugged into it and twist them together) the thermostat to see if the heater comes on then. If it does then you know the thermostat is bad and needs replaced.
The defrost heater is located on the evaporator. It is in a tube which is at the bottom and can also go up the sides of the evaporator. On some types you can see a burnt spot if it’s bad. With an ohm meter it should show continuity from end to end when disconnected from the wiring in the freezer. You can also test the wiring for voltage when it’s in the defrost mode.
If you have a defrost timer you can test it. It can be located under the fridge behind the kick panel on the front. Some are in the fridge with the controls at the top. You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer because that means the timer is not running. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.
If you have an adaptive defrost control instead of a timer, replace it if the heater and thermostat test good. It is located in the fridge with the controls in some models and on the back in others.

Posted on Jul 20, 2010

  • 83 Answers

SOURCE: we have a hoshizaki ice

The main problem with Hoshizaki machines is if you are in a hard water area, if so do you have a good quality water filter, it may need changing. A quick way to check for calcium ot lime deposits in the machine is
1. Turn it off, run you clean hand around the area near the evaporator, are there any rough or flaky deposits there, if so you may need a chemical descale, contact a reputable fridge guy to do this for you.
2. The swinging arm motor may be faulty or possibly the ice sensor which controls the harvest cycle. If this is faulty sometimes the tray goes back up before the ice has slid off.
3. If the machine is situated in a cellar or other cool (less than 10 deg C / 50 deg f) this can sometimes affect the harvest cycle again to set this you need a tradesman.
4. Does the water flow properly over the lower part of the mould plate during a harvest cycle, the pipe can become blocked or dislodged.

Hope this is helpful

Posted on Apr 14, 2011

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1 Answer

I have a hoshizaki ice maker that is giving a three beep code and the compressor will not start. i have cleaned the float and have water to the machine


3 beeps means freeze cycle too long. usually it's a stuck float or a water valve leaking most all the time. A low refrigerant level, weak compressor, bad TXV, or a leaking hot gas valve are usually secondary issues but not very common. In rare cases, the evaporator plates can separate from the refrigeration tubes. look at evap plates at the bottom and top and see if they are bowed or odd shaped.

May 03, 2017 | Hoshizaki Freezers

2 Answers

My hoshizaki ice machine KM-900mrf model beeps 3 times and stop making ice. After reset it starts, but stats beeping again after an hour.


Have a look at the side of the evaporator; there is a probe (thermistor) attached to it that tells the control board when to initiate the harvest cycle. make sure it's clean and attached properly and doesn't need replacing. If hitting the float switch initiates the harvest cycle it sounds like you have a blocked/ scaled water tube or switch housing. take off the bottom of the switch assembly (black rubber bit) and clean through to the water chamber. run a cycle of descaler before trying again.

Jul 04, 2015 | Hoshizaki Freezer Commercial Ice Machines...

1 Answer

Ice machine keeps freezing on the ice trays


If you are referring to the ice not clearing the evaporator plates, usually the defrost cycle is too short. Check that by watching the machine and when it goes into the harvest mode, see if all the ice comes off. If not, lengthen the cycle.

May 15, 2014 | Hoshizaki Commercial Freezer KM-500MAH

1 Answer

Hoshizaki KML-450MAH ice maker wont start after clean up


If you did a cleaning cycle and used the bypass valve to clean between the evap plates, look for the micro switch on the bypass valve to be bad. It is a small switch attached to the by pass and keeps the compressor off during the cleaning process. I'd start there.

Jul 02, 2012 | Hoshizaki Freezer Commercial Ice Machines...

1 Answer

We have a hoshizaki ice machine 901mwh the ice cubs seems to be getting stuck in the evaporator area and pileing up on it self and freezing bake up


The main problem with Hoshizaki machines is if you are in a hard water area, if so do you have a good quality water filter, it may need changing. A quick way to check for calcium ot lime deposits in the machine is
1. Turn it off, run you clean hand around the area near the evaporator, are there any rough or flaky deposits there, if so you may need a chemical descale, contact a reputable fridge guy to do this for you.
2. The swinging arm motor may be faulty or possibly the ice sensor which controls the harvest cycle. If this is faulty sometimes the tray goes back up before the ice has slid off.
3. If the machine is situated in a cellar or other cool (less than 10 deg C / 50 deg f) this can sometimes affect the harvest cycle again to set this you need a tradesman.
4. Does the water flow properly over the lower part of the mould plate during a harvest cycle, the pipe can become blocked or dislodged.

Hope this is helpful

Apr 14, 2011 | Hoshizaki Freezer Commercial Ice Machines...

1 Answer

Hoshizaki KM-500MAH is making sliver/chip ice. I


just to let you know you need to use nickel safe ice machine cleaner. and i hate to tell you this but if you are seeing silver chips in your ice your evaporator is shot. even if it is under warranty they will not give a new plate just for the reason of not using nickel safe cleaner. hope this helps you. i have seen this many times as im a service tech. alot of restaurant owners use coffee cleaner and also destroy their plates

Jun 05, 2010 | Hoshizaki Freezer Commercial Ice Machines...

2 Answers

Hoshizaki KM-900MAH Ice Maker it sounds like it is making ice and is freezing it but its not dropping ice any solutions?


Do you hear the machine cycling like normal but just not dropping? Could be the hot gas solenoid. If you never hear it trying to drop that could be anything from a dirty condenser to dirty plates to bad ice thickness control. Run some ice machine cleaner through it and blow the condenser out.

Mar 20, 2010 | Hoshizaki Freezer Commercial Ice Machines...

1 Answer

Im45le-25 defrost appears to go to long thus deforming evaporator probe holder & damaging probe as wont go into harvest mode .does machine use time as well if probe etc fail


Yes, the sensor detects the temperature of the evaporator plate then the PCB reverts to the adjustable timer. Check the probe in a glass of ice water. the reading should be between 5-7k ohms. if out of this range replace the probe. also check heat transfer paste is on holder and good contact is made probe to plate.
Be sure you are adjusting the pot the correct way as the large refers to the dimple in the cube not the thickness of the cube. ie its backwards to the initial thinking.

Mar 31, 2009 | Hoshizaki Freezer Commercial Ice Machines...

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