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Hoshizaki km800mae alarm #3 i dont have manual book

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restricted txv Hoshizaki Ice Machine

Posted on Jun 05, 2016

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These is a long harvest problem, it could be any thing from a stuck float valve, a water inlet valve letting water get buy while in freeze mode which wont let the ice to freeze fast enough, to hot gas valve buy passing, bad compressor valves, txv valve not feeding refrigerant good ,low charge. you might wont to call a service company on this one.

Posted on Jul 03, 2014

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1 Answer

How to clean a Hoshizaki AM-150BAF


go to http://www.hoshizakiamerica.com/. Click on "support". enter the model number of your unit and then click "get manual". there should be cleaning procedures in one of the 3 manuals that are available.

Jan 15, 2014 | Hoshizaki Modular Cuber 680 Lb. with 550...

2 Answers

Hoshizaki km-900mah not going into harvest when float switch opens. New circuit board installed still no harvest. I can set an egg timer and manually operate machine but I can't leave it unattended...


Hoshizaki machines must have a very clean evaporater other wise the ice will bind causing a slow harvest. This may be from lime scale build up. "Lime A Way" is recommended for this proper cleaning. After that is done check to see that the water inlet valve screen is clean and that you have a filter installed.
Last check the thermister attached to the suction line.
http://www.hoshizakiamerica.com/techtips/Pdf/All/tips105.pdf

Aug 01, 2011 | Hoshizaki Freezer Commercial Ice Machines...

1 Answer

Dont have code for alarm or electronic key car was bought with just one fob there has never been an electronic key with this alarm bought brand new fob how do i program it?b


honestly do not know ,i dont think they can be programmed but if you bought a new one then it must be possible but without a manual ?? now it would help if you posted if this is a aftermarket alarm or the original ford factory immobilisor if it is then post model and year and i will look in my alldata book to see how its done and scan and post it for you

Apr 06, 2011 | Ford Fiesta Cars & Trucks

2 Answers

KM-500-MAE Hoshizaki Problem huge cubes, alarm code three beeps


Might need to clean float switch, or water inlet valve bypassing water. Deep clean Hoshizaki.

Sep 30, 2010 | Hoshizaki Commercial Freezer KM-500MAH

1 Answer

KM-500-MAE Problem huge cubes,alarm code 3-beeps


excessive freeze cycle=60 minutes. In almost every case, it's the water valve (sometimes called the fill valve) is leaking water continually into the sump. Turn machine off and see if you can still hear water running into the unit. If so, it the valve leaking. Just replace it.
http://www.hoshizakiamerica.com/manuals/KM-500M_E_serv.pdf
Go to this site and download you copy of the service manual. It has lots of good stuff.. Let me know if I can be of any further help.

Sep 30, 2010 | Hoshizaki Freezer Commercial Ice Machines...

1 Answer

I have a hoshizaki ice machine and it will harvest for about 3 harvest and just before the 3 harvest it shuts off. It makes us up untill it shuts off. It beeps 3 times. DONT know what to do! NEED SOME...


How long is a freeze cycle on your unit? How big are the cubes that it's dropping? The three beep error indicates that the unit exceeded maximum freeze time.

Sep 05, 2010 | Hoshizaki KML-600M Low-Profile Crescent...

1 Answer

Km 500 kae hoshizaki 3 beeps every 4 second compressor not coming on


put an amp probe on common wire at compressor and see what amps are when it tries to start. 40 to 60 is mechancially locked up compressor. kill power and test start and run capacitors. there is an thermal temp over load on the compressor that opens when comp gets hot from trying to start. gently remove and look for cracks or burned looking. . i saw one this week doing exact same and i have ordered the oem compressor start cap realy and run cap and drier and will put in all new gas. be sure to allow sufficient time when switched to ice for it to get to ref cycle, it may take 5 minutes starting with water purge, then fill, etc. good luck, call hoshizaki dist they are usually pretty helpful if you need a auth service rep in you area. i think they are three years warrantied!

Oct 25, 2008 | Hoshizaki Freezers

3 Answers

Hoshizaki Ice Machine Model KM-500MAF


(Quated From Hoshizaki Technical Bulletin)
An alarm code of 3 beeps
every 3 seconds means that the control board has shut
down on the 60 minute freeze cycle back up timer.

The “E” control board has a 60 minute timer that starts at
the beginning of the freeze cycle. If the float switch fails
to open and start the next harvest within 60 minutes, the
board will automatically start the harvest cycle. If this
occurs in two consecutive cycles, the control board will
shut the unit down on the manual reset, freeze cycle
back- up timer. The yellow fault LED marked “60 min.”
will illuminate. This safety is designed to help prevent a
freeze up of the evaporator.

Once you have identified the 60 minute alarm, there are
several things to check. Reset the alarm by depressing
the white reset button to the right of the fault LED’s.
This must be done with the power “ON”. Now check the
float switch to see if it is stuck in the up position. A stuck
float can occur if scale is present on the reed switch
shaft inside the housing. To check it, drain the water
reservoir, unplug the black float switch connector (K5)
from the control board and check it with an ohm meter
for a closed switch (zero ohms). If the float switch is
sticking, clean it with ice machine cleaner or replace it as
necessary.
An inlet water valve which is slowly leaking by during the
freeze cycle can cause a 60 minute alarm. If the inlet
water valve is stuck wide open, it is unlikely that any ice
will form on the evaporator. Check for a slow leak by
allowing the unit to cycle into the freeze cycle and
disconnecting the hose at the outlet of the water valve. If
water leaks by during the freeze cycle, the water valve
diaphragm is likely damaged or the small diaphragm bleed
port is clogged with scale. Clean the bleed port or replace
the diaphragm or entire water valve as necessary.

(I Recommend to get a refrigeration tech for this part).

Another possibility is a refrigeration system problem. You
should use normal refrigeration diagnosis procedures to
check for one of these problems. If the thermostatic
expansion valve is not feeding properly or the refrigerant
charge is low, the evaporator will not form ice as it should
and a long freeze cycle will occur. This could also be the
result of the hot gas valve not closing completely during
the freeze cycle or if the compressor valves are weak or
inefficient. An inefficient compressor however, will
usually show up first on the KM model through a longer
than normal harvest cycle. This is because of cooler
than normal discharge gas. Use proper refrigeration
practices to repair a refrigeration system problem.
While these are not the only reasons for a 60 minute
freeze cycle, they are the most common and should be
checked to resolve a 3 beep/yellow fault LED alarm.

Feb 27, 2008 | Hoshizaki Commercial Freezer KM-500MAH

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