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


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.

Hoshizaki... • Answered on Jul 18, 2020


Watch the video. I hope that will help.

Hoshizaki... • Answered on Jul 18, 2020


Ice thickness probe on Manitowoc and float switch may be dirty or stuck if hoshi. Manitowoc sometime the thickness probe can get dirty and a film of algae and not sense ice properly but rare

Hoshizaki... • Answered on Jan 21, 2020


hoshizaki ice maker kml 400 mae is not making enough ice after i cleaned it.

Hoshizaki... • Answered on Dec 17, 2017


as long as you recovered the charge, pulled a vacuum, changed the filter/dryer, and added the correct amount of refrigerant as a liquid, you should be good to go.

Hoshizaki... • Answered on Jul 07, 2017


I see this is from several years ago. if this is still an issue, let me know and I will try to help.

Hoshizaki... • Answered on Jun 17, 2017


usually from not enough refrigerant in the system. compressor overworking. excessive heat could also be from the compressor being bad such as bad valves. should be checked out by a service tech as this could involve removing freon to make repairs.

Hoshizaki... • Answered on Jun 17, 2017


need more info on the unit. Model number would be helpful.

Hoshizaki... • Answered on Jun 17, 2017


float switch is usually a white plastic unit with a black rubber boot on the bottom. you need to drain the water out of the sump before doing anything with the float.

Hoshizaki... • Answered on Jun 17, 2017


this machine is rated for 1,600 pounds of ice in 24 hours. would need more info to offer suggestions.

Hoshizaki... • Answered on Jun 17, 2017


most all machines by Hoshi, the reset button is on the control board. take your time and look at it as it is labeled but is very small.

Hoshizaki... • Answered on Jun 17, 2017


try resetting the the "reset" button on the control board. it may be just that simple.

Hoshizaki... • Answered on Jun 17, 2017


this could be a large range of issue and too many to list for someone who may not be a skilled technician. I strongly suggest having a tech check it out as it may get into removing freon or more to make the repair. Sorry for the news.

Hoshizaki... • Answered on Jun 17, 2017


check for a stuck water float. this usually, in most cases, is the issue.

Hoshizaki... • Answered on Jun 17, 2017


What is your question about the switch? not very clear as to what you are asking.

Hoshizaki... • Answered on Jun 17, 2017


Check to see how long it stays in the freeze cycle. normally it takes a least 20 minutes to make a batch. If less than that, you are probably loosing water causing an early harvest and almost no ice.

Hoshizaki... • Answered on Jun 17, 2017


most of the time it is the water pump is going bad. It squeals real loud.

Hoshizaki... • Answered on Jun 17, 2017


Look for a small button on the control board. just press it to reset.

Hoshizaki... • Answered on Jun 17, 2017

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