20 Most Recent Hoshizaki Commercial Freezer KM-500MAH - Page 4 Questions & Answers

Usually right on the control board. It is very small button, either black or white, and is not very easy to see but it is labled on the board itself. Look very closely at the board. Good luck and hope it helps.

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

Hoshizaki machines have a water inlet valve that can stick in the open position. This will cause the machine to do silly things. If you can turn the machine off and you can still hear water running, the valve is stuck open. It is an easy fix. Water valve only has 2 wires going to it and 2 water lines. One inlet and one outlet. Just turn off water and kill power at the breaker before doing any work.

Hope this helps and good luck.

Try Rick and Restaurant Parts and More in Ohio for a replacement valve. 1-888-814-1110

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

In most cases, there is a chart on the inside of the front cover. It may also be located on the side of the box where the control circuit board is located. It will tell you what the 3 beeps mean. Hoshi has a great tech support. It's worth the wait.

Very common to get a peice of plastic from the cube guide stuck in the impellar of the pump. Pull hoses off, look inside white housing on the pump, you may find a peice of plastic in there. Or is ou have broken slates in the cube guide from time to time smaller peices of ice will get in there. then the sound comes and goes. Of course it could actually just be the pump. :)

float switch at front of module to the left of the water pump white plastic with black rubber push on seal
inlet valve at top middle of machine inside small metal holder screwed to top of machine

i suspect a defective liquid line or pump down seleonid coil. just make sure you hear the "click" when it starts up if not the selenoid coils could be defective. also verify that the condenser fan is running,because if not you are short-cycling on high head pressure. please contact if you need any additional info

I am guessing there is a safety switch somewhere which is gauging how much water is left in a defrost tray. Other likely things: open circuit breaker from the water shorting things out. Start with these. Other, more exotic things could be involved...but not as likely as the above.

If you need answers and have not recieved results I will try to help, I see no one responded to your request because the manual and diagnostics info seems to only be sent to people that sell and purchase the machine. If you need help and want answers  you can call me at 864-812-1887 or e-mail me at [email protected]  your description of the problems could be many different possibilities. I want to know and help also. Thanks John Tripp

Look at water solenoid valve when the unit is running in ice mode. Check to see if the water is shuting off completely. If the water valve does not close properly it will keep adding a little bit warm water to the ice a slow down the ice production.

any beeping? beeping says what problem it is having. Reset it while energyzed by pushing the button way back of the control board in the control panel section. The switch needs to be set to run and valve to normal position, full ice bin sensor may be stuck to full position, exercise the sensor flap. Post what you tried to remedy the situation for better help ideas. Trouble shooting instruction are included on the machine cover doors.

If you want the ice maker work. you will to pay for the repair, If you want you cam another company.. Or you can do nothing which is nothing

http://plus.hoshizakiamerica.com/techtips/pdf/im/IM-500SAA_TRAINING_MANUAL.pdf https://hvac-talk.com/vbb/showthread.php?723481-Hoshizaki-KM501MAH-Phantom-Off

How to repair

https://download.partstown.com/is-bin/intershop.static/WFS/Reedy-PartsTown-Site/-/en_US/manuals/HOS-AM-100BAE_sm.pdf since your info is so limited, try this web site for the manual for your machine as see if there is anything that may be of some help to you.

http://www.hoshizaki.com/docs/manuals/IM-130_132_210_212_serv.pdf this web site from Hoshizaki does not show or indicate any wire for heating. See sequence on page 10. You may want to read thru this as this may help you understand how it works and what you may need to address. Let me know if I can be of any further help.

this is a large misconception of this unit. After a defrost cycle is completed, the display stays in "DEF" or "REC" until the box temp reaches 14 degrees of the "set" temp. So, if you have it set on zero, the conditioned space has to get to 14 degrees and then the display will switch over and show the temp. One way to verify this, is if the display shows DEF, check to see if the compressor is running, if so, then this scenario applies.

It appears that you have supplied the ice bin model number and not the ice maker numbers. Please double check your unit and see if you can locate those numbers.