Question about Hoshizaki Commercial Freezer KM-500MAH
I've got a Manitowoc Series 150 Icemaker, and the last problem I have to fix on it is acheiving the proper balance so that it's far enough back that the water curtain coats the ice tray enough to get ice cubes forming (and doesn't drip out over the front of the trough), and far enough forward so that the ice cubes actually drop out of the top and down into the bin.
No matter how much fiddling I do, during the harvest cycle the ice cubes still seems to drop part-way out of the tray, but get stuck on the bottom and the whole sheet of cubes just leans out onto the plate, but isn't at the right angle to swivel the plate out of the way in order to let the cubes drop out. (like this ---> |// )Then a new cycle starts, water cascades over the stuck sheet of cubes, and pours down into the collection bin - melting any ice successfully formed. :(
So, I use up a lot of electricity and still get no ice.
I've fixed EVERTHING else on this machine, just not this.
Something is holding your Ice Slab at the bottom from your description.
Some causes are
1 Dirty - scaled up evap, or just dirty w muddy covering,
2 the vacuum breaking holes are stopped up If it is making a sla whith the evaporator warm no ice take a flashlight and hold it where its shining to the back of the evap and look for the light on th cube forming slots next to the ones your shining the light into Upper corners of each hole must be open.
3 The slab is freezing uneve most like cause is a stopped up distributor tube at the top thats feeding the water down the evaporator.
4 On some models thay had a closer fitting water curtian (the cover in front of the slab) and the top of the sheet touched this and caused the slab to stay uprite and continue the "slide" forward.If your curtian is of the older style and has metal hooks on it with verticle slots n the curtian look at the slots and see if the slots are worn making the whole curtian slide down ward I have seen this several times.4B On some older models there is also a plactic coated wire diverter on the bottom infront of the evaporator. If the palstic coating is gone or the bottom or is not even, the slab could hang up there. 4C If you have the newer plastic pins make sure thay are seated in the mounting properly.
5 Nickel plating could be comming off (any copper color on the lower 1/3 of the evaporator?).
6 I have seen some of the horizontal plates them selves be loose and not in flush try pushing and pulling on them especially the ones at the bottom. ANy that are loose and comming out is your problem.
This lengthy extrapolation is by no means all of the possibilities but most of the common ones. If this helps you solve your proble please rate me accordingly. If it leads you to the correct and completed repair WOULDNT WE MAKE A TEAM?? And Good luck to you.
Posted on Mar 18, 2009
I realize this is a very late post, but it might help those who are currently researching the above problem.
I solved it by drilling a 3/8" hole through the center of the top half of the plastic curtain. I screwed a bolt into the hole from the outside and then placed two nuts at the end of the bolt to lock each other in place.
The purpose is to prevent the top half of the ice from leaning against the plastic curtain at such a sharp angle that it can not place enough leverage to the curtain to open it up while at the same time much of its weight is directed back towards the bottom of the icing unit. Hence, the ice hangs up and YES, the unit will either shut off in error or try to run water across it to remove the problem.
Not only does the simple bolt work like a charm but it causes the ice slab to fall out fast enough so as to allow the next freezing cycle to immediately begin without turning off for the 2 or 3 minute delay time which was typical when the slab had difficulty dropping, but would eventually do so and this became the accepted norm, until the above quick fix was applied.
Yes, of course cleaning is a necessary duty even with pre-filters.
I think I could get a patent from Manitowoc?
Hope this is all clear. I know how frustrating it is when everything else seems to check out just fine.
Posted on Aug 07, 2015
The cubes are released by hot gas. So an undercharge will not allow this.
Posted on Apr 04, 2010
I have a Manitowoc 150 series and the cuber plate doesn't get hot during harvest (so the ice doesn't release). Eventually this trips the GFCI, and no ice gets made. Any help would be great.
Posted on Feb 14, 2010
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Posted on Jan 02, 2017
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Thank you for your inquiry, Herb!
I see that your Frigidaire refrigerator, FGHB2866PF, is not making enough ice. When is the last time you changed your filter? It is recommended to change your filter every six to nine months. If the filter is dirty the icemaker will not produce. You may also have a frozen water line and you can perform a manual defrost in order to clear out the line. To manually defrost your line you would need to disconnect power from it for at least three to four hours. If that does not correct your issue you may need to have a professional technician out to perform a diagnosis and repair. I hope this information is helpful. -Matt
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