Question about Maytag MBB2256G Bottom Freezer Refrigerator

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Freezer compartment not defrosting

MBB2256GEW is the model # of this maytag bottom freezer. It appears that a component in the defrost cycle has failed as this is now the 2nd time in 3 weeks that the freezer coils have iced up. What do you suggest? I've read most of your posts and am very impressed with your knowledge. Hopefully you can point me in the right direction! Thanks in advance. Bruce Carwardine

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Re: Freezer compartment not defrosting

Most refrigerators utilize an electrical heater coil to prevent freeze-ups. your coil has most likely failed. hard to pinpoint without being there, however, i would check its resistance with an ohm-meter with power off: if no resistance, then coil is burned out. look for around 2 ohms

Posted on May 26, 2007

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Siemens ka..n freezer problem

Look inside the back wall of the freezer to see if you have a layer of frost building. If yes this will indicate that the refrigerator is missing its defrost cycle. When you miss defrost it is usally number 1 the defrost control. Number 2 is the defrost heater has burned out and #3 the defrost thermostat. For you to look up the correct replacement parts you will need to find your refrigerators model number found most times inside the fresh food compartment. Click Here for=> Bosch Refrigerator Defrost ControlsI will be here to answer any questions you may have or if you have your model number let me know and I will help you find the parts you need, Thanks Sea Breeze

Feb 16, 2012 | Bosch Refrigerators

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Refrigerator temp is 66 degrees, way too warm. Freezer seems that all food is frozen and normal. I have opened the refrigerator several times in a fairly short period of time this morning. Set refrigerator...

Yes it does sound like it could be a component of the defrost system thats the problem OR the fan in the freezer that circulates cold air into the fresh food compartment

If ya see frost build up on the back wall of the freezer and do indeed hear the fan running it will be a defrost problem

if ya dont hear the fan in the freezer running thats very possibly the problem


Aug 29, 2011 | Amana ABB1922FEW (186 cu ft) Bottom...

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I bought a maytag side by side in 2002; model # MSD2454GRQ, SN 18157432AL, REV # 18. Ice is forming at the bottom of the maytag freezer department. Overnight ice will form at about 1/8 inch and left has...

Defrost problem: 3 components. Defrost Heater. Timer (circuit board or motorized) & Thermostat.
Remove cover on the inside back wall (usually 6 screws). Note frost pattern. (bottom of evaporator coil)
Put refrigerator into defrost cycle and note the defrost heater come on, or not. (careful heater can glow red hot)... Unplug Frige and test defrost components. Replace bad component... Refrigerator should defrost every 8 hours. when the cycle slows or quits the freezer will freeze over the evaporator coil and no air flow = no cold air...

Nov 15, 2010 | Maytag MSD2756G Side by Side Refrigerator

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it sounds like your circulation fan is not working. it is located in the freezer compartment in front of the evaporator or very close to it. you should hear running either all the time except in the defrost cycle. on some models the fan will shut down when you open the freezer door and restart when you close it. if the fan is OK you have a problem in your defrost circuit. probably a bad heating element or a bad defrost cutout switch or bad connections in the freezer compartment. sometimes the defrost timer can go bad but not often. I have found in my experience that the problem is usually the other two components I mentioned or bad connections.

Mar 13, 2010 | Whirlpool 21.0 cu. ft. Top Freezer...

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Water pools and freezes at bottom of the freezer. When tray is full water leaks out of freezer onto kitchen floor.

I am uncertain as to what you mean by "when tray is full"? However, you probably have a clogged drain in the freezer compartment. During the defrost cycle, which usually occurs every eight hours, defrost components (defrost thermostat & heater(s) ) melt the ice that has accumulated on the evaporator coil in the freezer compartment. The water from the melted ice drains through a hole in the freezer compartment (behind the freezer's rear panel) and accumulates in a drain pan below the refrigerator. This water should evaporate over time, whereby you should not have to regularly empty the drain pan. If the drain hole is clogged (usually from algae or other debris, etc.), the water finds another path to flow (which is inside the bottom of your freezer compartment). This water will usually freeze. Water will then flow toward the front of your freezer compartment and out of the door on to the floor when you open the door.

Contact an appliance service company to unclog your freezer drain. Also have them check your defrost components (thermostat & heater(s)).

Feb 15, 2010 | Frigidaire Refrigerators

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Fresh food compartment is not cold

Good day,
Not as much info as I would like, but here's a good list to get started with.
Note: Assuming the freezer is at or near normal.

1. Lights do not go out when door is closed. Can be tested by checking just before door closes completely.
2. Air circulation fan motor in freezer compartment, not running.
Can be heard when opening freezer door when machine is running.
Remove rear panel in freezer compartment, and repair or replace as necessary.
3. Most common. Defrost system failed.
The Auto defrost system is made up of three components.
1. Main heater, located behind the rear panel in the freezer compartment. 2. The defrost thermostat (often called a terminator) located on top of the evaporator coil which is located in the same area as in #1. 3. Defrost timer (either mechanical) or electronic) located in the fresh food compartment. This device initiates the defrost cycle once to twice a day.

Go to.... with the complete model number of your machine to identify the location and style of your components.

Nov 17, 2009 | Kenmore Refrigerators

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Freezer compartment ice build-up

too defrost just open the doors for a day with the unit unplugged. as far as why it is frosting up check door seals make sure they are all good and seal it up well and that should take care of it.

Jun 26, 2009 | Kenmore Elite 22.4 cu. ft. Bottom Freezer...

1 Answer

I do not know how to defrost my freezer Model MQU165BEW

There are no buttons to defrost your freezer except the off button. The unit is a self defrost. If it is freezing up then one of the defrost components have malfunctioned.

Apr 01, 2009 | Maytag MFD2560HES Bottom Freezer French...

1 Answer

Freezer Not Defrosting

Hi Rusty...

There are 3 componants to most defrosting systems. The defrost heater, the defrost thermostat, and the defrost relay. First you must remove and store your perishables safely. Then remove the panels in the freezer compartment to expose the evaporator. The defrost heaters will be attached to the evaporator and will have wires extending from them. Using an ohmmeter, see if there is continuity across the heater. If not replace it. Find the wiring diagram on the back of the unit and check for voltage into and out of the defrost relay. All of these items should be availible from a local refrigeration supply facilitiy.


Nov 12, 2008 | Amana ABB1927DE Bottom Freezer...

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