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.

time the cycle. if it is only running about 5 minutes and going into harvest, look for sump loosing water. Look at where the unit drains (like a floor drain) while the unit is running to see how much, if any water is draining. does not take much to make an early harvest. also, sump may not be filling up completely but with just enough water to satisfy the float.

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.

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Look for a stuck float switch. unit fills with water for 1 minute, then the board "looks" at the float to "see" if there is enough water in the unit to run. If float switch is stuck down, it tells the unit there is not enough water and the unit stays in the fill cycle causing the sump to overflow and send water down the drain constantly. Compressor will not run till the board senses that there is enough water to run.

you can replace the housing only, Check with your local Hoshi supplier for parts. Start there as a new pump is very pricy.

You are not getting enough water.Change the water filter,if it has one,and check the water inlet valve to see if it is plugged

if this is a water cooled machine, the head pressure flow controller need to be replace/adjusted.

Remove the cover where the persons finger is and check to make sure that it is not covered with ice. Sounds like your machine iced oup and you will need to clean the coils and possibly replace the thermostat

Check the condenser if it is restricted in any way it will decrease ice production. Check for water overflow from the sump. Any more water than necessary entering the sump will also cause a decrease in ice production.

My ice machine Hoshizaki km-500 mah is cycling to fast. Causing poor production of ice it's real small and it doesn't produce enough ice aswell. Wha seems to be the problem.

Always attempt to have Hoshizaki pumps rebuilt when possible. The parts are cheap compared to buying a new pump. Check ebay from time to time I have just started tearing units down and selling the used parts, that are still functional. Sold that pump for $75 last week