20 Most Recent Hoshizaki Freezer Commercial Ice Machines - KM900MRH Commercial Ice Machine - Page 4 Questions & Answers

Bin Thermostat does not work

Too much ice is usually and indication that the bin thermostat is not functioning correctly. It has either come out of it's holder, is not calibrated properly, or has lost it function and needs replacing. The thermostat "Kills" power to the control board when Ice comes in contact with it and shuts the machine down. Hoshizaki says it should happen within 6-10 seconds of ice contact after the end of a harvest cycle. I would start there first.

Need some more details. Size of cubes too small? Batches of ice take too long to make? (Over 45 minutes?)

On Hoshi ice maker, if coils are HOT, it is passing hot gas from compressor into the lines. After the defrost of the first cycle, after this cubes are completely cleared from the plates, the "Hot Gas Valve" should close and the freeze cycle should start over. It sounds that the valve is sticking open and not stopping the hot gas from entering. Look there first.

take the front and top cover off from the top look down and you can see the reservoir there is a black piece on top with two wires going in to it. turn it to remove it. You can test it by starting the ice machine and turning the float up side down. If water continues to flow you may have a bad diaphragm in your water valve. You can replace the diaphragm with a Phillips screw drive. Just be very careful when you lift the stem that goes in the solenoid make sure you pull the diaphragm with it as well. there is a spring it the stem that will fly out and it runs fast and hides well. look at the diaphragm's hole if it looks worn replace it before the float switch.

Technica go to this web site and look for manual on right hand side. Look for REV 4-15 and it says for "ALL H SERIES."

indicates too high of voltage. start there.

the number of beeps indicates the issue. count the beeps and repost.

The ice thicknes control is located on the bottom left. it has a wire goingto it and ha a black rubber bottom. depending on the position it is secured.will determine the ice thickness. loosen the two screws and push it higher for smaller cubes and lower for bigger. If you are having problems with it.There is the possibility it is dirty and sticking.

Too long to explain sequence here. but in the harvest mode the fan will not be running. go to hoshizaki.com you will find every thing you need very helpful site . and a clean machine is a happy machine. hope that helps Tom

A few simple things to check is the condenser for dust. Blow it out. If their is a water filter going into the unit change it. Get some ice machine cleaner and follow directions. Do these things before calling anyone out. If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

that could be a number of problems..is it making any beeps or flashing lights on the circuit board? Have you tried to reset the circuit boards reset button with the machine on. ? If the machine seems totally dead then the bin thermostat is most likely the problem..

It sounds like you have an ice machine head on a fountain unit. If so there should be a circuit board where you can set the agitator setting to stir the ice periodically. it may not be set right or malfunctioning. Check to see if the bin or fountain manufacturer has a model and serial number and verify if you have a stir setting. .

If you just want to reset it because it is making a beeping sound, there is a small white button on the control board. just press it while the power is on. If you want more than that, please supply more info.

the 3 beeps means that the freeze cycle is longer than 60 minutes. This could be because: float switch stuck, water valve leaking water into the sump, low on freon. If not one of those, it is a more technical issue that would require a service tech. Reset button is a small white button on the control board. Press it while the power is on to reset it.

Need entire Model number. usually ends with a number. Serial number would help too.

If the machine is a small self contained unit it is normally on the right side of the unit next to the water pump. It has two wires (usually red and black) encased by a grey cover.

90% of ice maker problems are water related. Sounds like water may be continually seeping in from the inlet water valve (normal thing to do if the water level is low). This will not allow the water to get down to freezing temperature. You have to identify the reason that water is constantly running in. It's probably "leaking" out at the dump valve. Or does that unit have a float valve that may be leaking. Check your drain to see if water is leaking out during the freeze cycle.

if you are sure the float swith is good and the dip switches on the board are correct, you most likely have a bad 1 minute timer on the control board. will have to replace board.

put switch into the "wash" mode. if water pump comes on, replace the switch.