Question about Hoshizaki Commercial Freezer KM-500MAH

1 Answer

Hoshizaki Ice Machine starting problem after shut off

After noticing ice forming around the water lines inside the front panel, I decided to turn it off to defrost. When I tried to turn it back on it would not start again.

Any ideas?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 833 Answers
Re: Hoshizaki Ice Machine starting problem after shut off

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.

Posted on Dec 04, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

How do i clean a Hoshizaki ice maker?

normally there are instructions on how to properly clean and sanitize on the inside of the front cover. check there first.

Dec 06, 2012 | Hoshizaki Freezer Commercial Ice Machines...

1 Answer

Hoshizaki ice maker am-50bae . Made ice regularily--- filled ice bin half day-- all ice melted away with no more new ice? next day shut off for 3 hours now o new ice.

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.

May 19, 2010 | Hoshizaki Freezer Commercial Ice Machines...

1 Answer

I have a Hoshizaki Model KM500MAE that keeps freezing up. What can I do to stop this problem

several things cause freeze ups.
If you have water filters on the water system, be sure they are not restricting the water flow. water flow pressure should not go below 20 psi.
The bin stat may not be shutting off the unit properly. It should shut off machine within 10 seconds of ice making contact.
Make sure the float switch is not dirty. Be careful when cleaning. Fragile
Make sure water pump runs the entire time it is in the freeze cycle.
Be sure the evaps are clean. Ice cubes will hang on if not clean.
Water solenoid has a screen where the water line screws on to it. Turn off water and check screen to be sure it is clean. This can restrict water flow.
Make sure water valve closes all the way. Turn machine off and see if water is still running. Valve may be leaking water thru.
Dip switches on the board, #1 and #2. Turn them both on and it will change the defrost time to 3 minutes. If both are off, they are set on 1 minute.

Hope this solves your problem. Let me know

Apr 07, 2010 | Hoshizaki Freezer Commercial Ice Machines...

1 Answer

3 yr. old Hoshizaki km630 mah, Had a hard freeze(24 degrees) at the shop and checked the ice maker that sits outside main bldg. Main water supply line inside that joins the copper pipe to the plastic...

There should be a reset button on your control board inside the electrical compartment.

Turn the system on to ice mode and depress the reset button. This should clear out any and all faults stored in the board and the machine should at least attempt to come back to life.

Look on the outside of the electrical compartment cover. There should be an explanation of what your error code means. I can't remember it off the top of my head. But the list there will tell you what 1 beep every 305 seconds means and the procedures to take from there.

Jan 13, 2010 | Hoshizaki Freezer Commercial Ice Machines...

1 Answer

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

May 06, 2009 | Hoshizaki Commercial Freezer KM-500MAH

1 Answer

Icemaker makes 2 dumps of ice & then shuts down.

Look on the inside of the front panel. Should be a chart to tell you what the beeps mean. Hoshi has a great tech support line in Peachtree City. It's worth the wait to talk to them.

Jan 26, 2009 | Hoshizaki Freezer Commercial Ice Machines...

2 Answers

Hoshizaki ice machine repair?

seems that its low on water or float switch is bad. try to clean float

Sep 02, 2008 | Hoshizaki Freezer Commercial Ice Machines...

5 Answers

Ice machine

3 beeps. hoshizaki replacing txv

Dec 21, 2007 | Hoshizaki Freezer Commercial Ice Machines...

Not finding what you are looking for?
Hoshizaki Commercial Freezer KM-500MAH Logo

Related Topics:

96 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hoshizaki Freezers Experts

Dan Webster
Dan Webster

Level 3 Expert

8147 Answers

John Tripp
John Tripp

Level 3 Expert

4625 Answers


Level 3 Expert

57295 Answers

Are you a Hoshizaki Freezer Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides