Question about Hoshizaki Freezer Commercial Ice Machines - KM900MRH Commercial Ice Machine

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Hi can u tell me what the blinking of the red service lamp means on the control board. when i press the reset button it runs on defrost for about 1-2 minutes then cuts out again?

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Upright freezer door was left ajar. The alarm keeps sounding, can you tell me where the reset button is located.


Hello Deena;

My name is Peter. I am a retired field service refrigeration technician.

There is no reset for the alarm. The alarm goes off when you are not maintaining temperature.

During the time the door was ajar, warm air got into the freezer either icing up and locking the cooling fan or forming a block of ice on the cooling coils (Restricting cooling air flow.)

The best thing you can do, unless you want a $300.00 plus service call to defrost everything, is to turn power off to the freezer. Open the freezer door. Have plenty of old towels to soak up the water in the bottom of the freezer as it defrost.

You did not provide a model number which is located on the inside wall of the freezer. Every 8-10 hours your freezer will completely shout down for 20-30 minutes where only the light works and the defrost heater turns on. The ice build up is too much for the defrost heater to handle.

In some freezers the defrost mode is in the control board, in others it is a separate component that you can repeat trip using a flat head screw drive.

Jan 26, 2016 | Freezers

1 Answer

What do OF and UL mean on temp control for ffh17f7hwb Frigidaire upright freezer?


Hello;

My name is peter. I am a retired field service refrigeration technician.

"Of" means you are locked into the defrost mode. This is where your unit will shut down every 8-10 hours. Everything will stop running except for the light. The defrost mode take about 20-30 minutes where the heater turns on and defrost the cooling coil, then the unit turns back on.

Some upright freezer have a separate defrost timer, but not yours.

Your defrost timer is built into your control board.
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PART NUMBER: 297366300 - Cost: $70.00
If you go into the internet you may be able to get the board for $40.00.

Install:
1.) Unplug your unit.
2.) Ground your self by touching bare metal. Static electricity will knock out a board.
3.) With a small flat head screw driver, wedge the outer frame and pop the assembly out. You only have one connector to disconnect. You may need the small screw driver to free the connector.

Dec 24, 2014 | Frigidaire Freezers

1 Answer

Hosizaki ice machne 3 beeps then after i reset it it runs for 7 seconds and shuts off?


the 3 beeps means that the freeze cycle is longer than 60 minutes. This could be because: float switch stuck, water valve leaking water into the sump, low on freon. If not one of those, it is a more technical issue that would require a service tech. Reset button is a small white button on the control board. Press it while the power is on to reset it.

May 21, 2014 | Hoshizaki Freezer Commercial Ice Machines...

1 Answer

Temprature blinking


Control board has gone bad....

What happens is the defrost is controlled electronically from a circuit board, when this goes bad, the freezer quits defrosting, and freezes the fans that circulate air through the fridge side of things.

To check this, unplug the entire fridge, leave the freezer open, wait for it to defrost a bit, if this causes the fridge to start cooling again when you plug it back in, then its the defrost. You should also see ice crystals on the back of the freezer just under the icemaker.

http://forums.partselect.com/refrigerator-freezer-repair/rerifgerator-side-not-below-54-degrees-6699.html

Jul 07, 2013 | Freezers

1 Answer

We have a Kenmore Elite Freezer Model #253.29082994. We had the freezer plugged in and it was working fine. We unplugged it and moved it and now when we plug it in it won't start. Is there some kind of...


You refrigerator was made by Frigidaire Adaptive Defrost Controls Frigidaire Refrigerator Trouble Shooting and Diagnosing
On the initial plugin, or when power is restored to the fridge after a power outage:
If terminating thermostat is open, the fridge enters a compressor (cooling) cycle.
If the terminating thermostat is closed, the first defrost cycle occurs 1 hour
after initial plug-in.
Maximum defrost cycle time is 24 minutes.
Minimum time between defrost cycles is 6 hours. (compressor runtime)
Maximum normal clock time between defrost cycles is 12 hours.
Maximum time between defrost cycles (in "vacation" mode) is 72 hours.
Vacation mode is not entered unless the door has not been opened in at least 24 hours.
Note that the ADC will only enter the defrost mode if the terminating thermostat is closed. If the terminating thermostat is open when defrost is initiated, the ADC board will wait for six minutes and then return to the cooling mode.
ASSUMING that the fridge has been on and running,
and the terminating thermostat is closed,
defrost is initiated by pressing the door (light) switch
at least five times within six seconds.
The defrost heater should start heating up within 8 seconds.
If the above procedure caused the heater to heat up, the ADC board is probably bad; replace it.
If the defrost heater does not heat up, test the defrost heater, terminating thermostat and cold control for continuity as follows:
Unplug the fridge from the wall. Unplug the ADC board from its connector.
Test the connector for continuity between the following leads:
Defrost Heater = DEF TERM (blue) to DEF OUT (brown).
Terminating Thermostat = DEF TERM (blue) to NEUTRAL (lt blue).
Cold Control = COLD CONTROL (orange) to L1 (black).
Replace the defective component.

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Apr 26, 2011 | Kenmore Freezers

2 Answers

The freezer is running, and the light is all coming on but it is not freezing the contents in the freezer?


Hi and welcome to FixYa. I am Kelly
If your sure the compressor is running and it is not freezing then there has to be a system coolant leak.
Having said that there are a few things to check:
1. Is the compressor in fact running Y / N
a. Yes = coolant level problem or coolant system blockage
b. Not running = (Possibilites below)
1) PTC / Klixon Thermal overload failure
2) Run capacitor failure
3) Temp control failure
4) Automatic defrost thermostat or thermistor
5) Defrost timer or Adaptive defrost control failure (depending on model)
2. Is the compressor very hot to the touch or room temp?
a. VERY hot = unplug the unit for at least 30 minutes and then plug it back in.
b. ROOM temp = any of the above in 1b items 1) - 5)
3. Is the evaporator fan running?
a. Yes = Temp control is ok Defrost system is probably ok
b. No = same as 2b

With a model number I could pass on a few additional things to do. For the moment use the above.

Thanks for choosing FixYa,

Kelly

Oct 18, 2010 | Kenmore 20.3 cu. ft. / 575 liter Upright...

1 Answer

Defroster get red hot


Kenmore Frostless Upright freezer model# 23971. The alarm sounded, all contents in freezer is frozen solid. We turned the alarm off, but the red light continues to blink. How do you reset the alarm and stop the red light from flashing? It has been 3 days now and every time we have check to see if the contents has started to defrost, there is no signs of defrosting, everything inside of the freezer remains frozen solid.

Sep 01, 2010 | Kenmore Freezer 20.6 cu. ft. Manual...

1 Answer

I have a frigidaire upright frost free freezer model number is FFU2065FW3 I put in a new electronic temperature control Board and when I plugged the freezer back in, the control board was flashing "E" and...


OK, this is a failed controller board, any E4* is Power supply & Controller Board, probably caused by a power spike.You need to get the unit looked at to see if it is able to be repaired, and if parts are available. If you wish to try and repair this yourself, you must get a service manual, to do so, and to be able to order parts.

Apr 03, 2010 | Frigidaire 20.3 cu. ft. / 575 liter...

1 Answer

Where is the Adaptive Defrost Board on a Frigidaire GLHS36EEQ6?


The board is located under the freezer side of the unit. You can call Sears, as they carry your brand's parts and they will tell you exactly where it is. There are diagrams on the web too. Search for appliance parts. You'll need to enter model number here: www3.sears.com
Fridgidaire refrigerator repair in Orange County, CA

Feb 05, 2010 | Freezers

3 Answers

KF48 Beverage Air Freezer permently stuck on "defrost."


Unplug the fridge overnight and defrost it completely. Ensure the thermostat is properly set.

If it does not restart normal function after you plug back, then there may be a fault concerning the digital control, in that case call the number listed on the owner manual.

Jan 06, 2009 | Beverage-Air 44.9 cu. ft. / 1271 liter...

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