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Tex
Premium
join:2012-10-20
kudos:2
reply to lutful

Re: [Appliances] sanitizing ice makers

Those instructions are for a commercial ice machine. I don't believe I've ever seen a residential refrigerator ice maker that has a circulate or drain feature.



54067323

join:2012-09-25
Tuscaloosa, AL

1 edit

said by Tex:

I don't believe I've ever seen a residential refrigerator ice maker that has a circulate or drain feature.

Heck they don't even have drains, just ask someone who has had the cam hangup on the fill cycle or a failed solenoid valve. The kitchen floor becomes the drain.

In residential you don't see re-circulation or drains until the units get up to the under-counter size or about 30-40 pounds per day.

Those types of units like their commercial brethren will have a re-circulation pump, a mould or sheet evaporator and hot wire cutter and a drain for the storage bin and re-circulation sump.

And as I am sure you know, they can and are to be cleaned with some nasty stuff called ice machine descaler and cleaner many of which contain Phosphoric Acid.


cdru
Go Colts
Premium,MVM
join:2003-05-14
Fort Wayne, IN
kudos:7
reply to Tex

said by Tex:

Those instructions are for a commercial ice machine. I don't believe I've ever seen a residential refrigerator ice maker that has a circulate or drain feature.

My work has an ice machine that is under the counter. Looks just like a dish washer until you open it. The instructions aren't identical to the above, but they are pretty close. I would not call the ice maker a commercial unit, but it is a dedicated ice unit that would be typical for a wet-bar type area.


Tex
Premium
join:2012-10-20
kudos:2

2 edits

N/M


lutful
... of ideas
Premium
join:2005-06-16
Ottawa, ON
kudos:1

1 edit
reply to Tex

Click for full size
said by Tex:

Those instructions are for a commercial ice machine. I don't believe I've ever seen a residential refrigerator ice maker that has a circulate or drain feature.

That reference was to show the steps which use potentially corrosive chemicals. US military procedure (screenshot above) includes both commercial and residential ice makers.

You can clean residential ice-maker assemblies (such as the older GE model shown above) using either vinegar or dilute bleach solution. You can definitely "circulate" the cleaning solution from water inlet at the back of the fridge all the way to the ice dispenser or tray.

All the fear-and-doubt about corrosion and electrical damage started because I had suggested using lukewarm saline solution to speed up melting of a solidly frozen assembly.


54067323

join:2012-09-25
Tuscaloosa, AL

2 edits

said by lutful:

All the fear-and-doubt about corrosion and electrical damage started because I had suggested using lukewarm saline solution to speed up melting of a solidly frozen assembly.

Which considering the conductive and corrosive nature of salt water is a dangerous thing to be using around electrical appliances.

You can clean residential ice-maker assemblies (such as the older GE model shown above) using either vinegar or dilute bleach solution.

As for using bleach, both Amana and Frigidaire warn end users not to use corrosive chemicals such as bleach when cleaning their residential refrigerators, which is noted in the screeshot you posted as for G.E. they recommend using a solution of a tablespoon of baking soda mixed into a quart of water not bleach.


54067323

join:2012-09-25
Tuscaloosa, AL

2 edits

1 recommendation

reply to cdru

said by cdru:

I would not call the ice maker a commercial unit, but it is a dedicated ice unit that would be typical for a wet-bar type area.

Which I already described a few posts up and is not found within a refrigerator.

Internally those back bar/under counter units operate in the same manner as the large machines found in say restaurants and many times are NSF listed which requires them to be designed to be cleaned to NSF standards, unlike the in-fridge/freezer units which are not listed and cannot be cleaned in such a manner.

Note the listing on this under-counter machine.

downloadmant30.pdf 377545 bytes


Tex
Premium
join:2012-10-20
kudos:2

1 recommendation

reply to lutful

You can post all the Army, Navy, Marine Corp and Air Force documentation you want, but in order for the water to circulate, as in a commercial ice machine, there would need to be a pump to circulate the water. There would need to be a water reservoir. No residential refrigerator ice maker that I'm aware of has these features. Nor do the ice makers have drains.


lutful
... of ideas
Premium
join:2005-06-16
Ottawa, ON
kudos:1

said by Tex:

... in order for the water to circulate, as in a commercial ice machine, there would need to be a pump to circulate the water. There would need to be a water reservoir. No residential refrigerator ice maker that I'm aware of has these features. Nor do the ice makers have drains.

All this started with my suggestion to speed up the ice melting process using warm saline solution. I have done this several times for relatives and also used vinegar to clean the (plastic) assemblies and trays.

If you really wanted to run a cleaning solution from the water entry at the back of the fridge, you could run a tube from the ice tray to a nearby sink or a bucket on the floor and let gravity assist you. There are also inexpensive manual fluid pumps at auto stores.

Trying to prove that periodically cleaning the icemaker in a residential fridge is either impossible or ridiculous ... is an insult to people doing it regularly. If you are unwilling to do it, please do not prevent others from even considering it.

robbin
Premium,MVM
join:2000-09-21
Leander, TX
kudos:1

1 recommendation

There is no way for the average person to flush the lines of a residential ice maker. There is also no way to flood and drain the ice freezing tray. At most, you can direct a little spray from a pump spray bottle into it and then try to wipe it out. Suggesting anything else is truly ridiculous.

As far as salt water -- bad idea.



54067323

join:2012-09-25
Tuscaloosa, AL

1 edit
reply to lutful

said by lutful:

Trying to prove that periodically cleaning the icemaker in a residential fridge is either impossible or ridiculous ... is an insult to people doing it regularly.

It has nothing to do with sanitizing an ice maker and everything to do with proffering advice that dangerous, and recommending spraying salt water on electrical equipment is just that.

See the device with the 0/1 on it in the picture you posted?

That's a switch that operates the ice maker and it switches 120 VAC as such using salt water anywhere near that switch or any of the other switches under that plastic cover is flat out wrong and dangerous.




And trying to walk it back by renaming salt water, saline, doesn't change that fact nor make it any safer.

lutful
... of ideas
Premium
join:2005-06-16
Ottawa, ON
kudos:1
reply to robbin

said by robbin:

There is no way for the average person to flush the lines of a residential ice maker. There is also no way to flood and drain the ice freezing tray.


But reasonably smart 12-15 year old kids could flush once a year ... as an educational project.

Place container of vinegar water on top of the fridge.

Clip one end of water filled plastic tube in that container.
Insert other end of tube in the fridge water inlet.

Clip one end of another water filled plastic tube in the ice collection tray.
Put other end of that tube into a large bucket on the floor.

There will be no "flooding" if the container on top of the fridge is small. You can fill with salt water on first few passes, then vinegar water, and finally with clean water.

said by robbin:

At most, you can direct a little spray from a pump spray bottle into it and then try to wipe it out. Suggesting anything else is truly ridiculous.

For regular cleaning of the icemaker assembly with salt, you don't have to spray or even wipe.

Turn off icemaker. Wait.
Sprinkle salt on remaining ice. Wait.
Turn back on. Wait.
Discard salty ice.

said by robbin:

As far as salt water -- bad idea.

Yes, it is a bad idea if you deliberately spray salt water directly on electrical stuff outside the PLASTIC icemaker assembly.


Tex
Premium
join:2012-10-20
kudos:2

From the Army document:

Cleaning and disinfecting procedures for residential
ice-making machines.
(If available, follow the
manufacturer’s recommendations.)

1. Determine if ice maker is completely or partially removable.

If removable:

2. Run ice maker through 2 or 3 freezing cycles. If refrigerator has a built-in water dispenser then a longer flush is required to flush the water reservoir.

3. Remove ice storage bin, ice maker unit, and any other removable components.

4. Wash in hot soapy detergent solution.

5. Rinse in clean potable water.

6. Sanitize parts in a solution of 1 ounce unscented household bleach in 3 gallons of clean potable water. Leave parts in solution for at least 30 seconds. Let parts air dry.

7. Wash hands thoroughly. Reassemble the unit and return the ice machine to service.

8. Discard the first ice produced.

9. Let the bin or reservoir fill and run bacteria samples on water supply and ice.

10. If negative, ice can be used for food operations. If positive, reclean and sanitize machine and check for problems with the potable water supply.

If not removable:

2. Run the ice maker through 2 or 3 freezing cycles or flush the water supply line including the water dispenser and water reservoir.

3. Discard ice and return the ice bin to the freezer.

4. Use a spray bottle with a chlorine solution (1 ounce household bleach to 2 gallons of water. Spray all exposed surfaces including ice shoots and freezing surfaces. Let surfaces air dry.

5. Clean and sanitize ice bin and any other removable parts. Follow procedures for ice machines with removable ice surfaces, above.

6. Wash hands thoroughly. Reassemble the unit and return the ice machine to service.

7. Discard the first ice produced.

8. Let the bin or reservoir fill and run bacteria samples on water supply and ice.

9. If negative, ice can be used for food operations. If positive, reclean and sanitize machine and check for problems with the potable water supply.



Jack_in_VA
Premium
join:2007-11-26
North, VA
kudos:1

"From an army document"

That says it all. Useless for a home refrigerator ice maker and cold water dispenser.

I re-read my owners manual for my refrigerator and nowhere does it mention anything about "flushing" the ice-maker.



printscreen

join:2003-11-01
Juana Diaz, PR
Reviews:
·Choice Cable TV
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said by Jack_in_VA:

I re-read my owners manual for my refrigerator and nowhere does it mention anything about "flushing" the ice-maker.

Mine says to discard the first few cycles from the ice maker. Also when connecting for the first time or relocating recommends to run the water dispenser for 5 minutes or so to remove air bubbles and to flush the system.


Jack_in_VA
Premium
join:2007-11-26
North, VA
kudos:1

Mine says that too and I think all of them probably do also. That is not the same as routine "flushing".