Frost is building up in bottom freezer. Amana ABB2224DEW

Amana ABB2222FE

There is your user manual :)
Its the first one on that link.

If the door does not shut correctly, humidity enters the unit and condenses inside. The defrost function is not designed to work properly under such a condition.

Ice (frost) builds up around the cooling coils, and actually insulates them, so you don't get good cooling. When you unplug the unit, the frost melts, runs into the bottom tray beneath the unit (can't see it).

When you turn it back on it cools like it should until the frost builds up again. You need a good gasket and a door that is adjusted properly. You also need the unit level at least side to side, but front to back also is preferable.

The unit has front leveling feet, and the back usually adjusts itself with self-leveling feet. The adjustments for the door are metal bars inside it, behind the inside storage panel.

The hinges are also adjustable. Sometimes the door sags from heavy things stored inside it. You must loosen the hinges a bit, lift the door and hold it while you tighten the hinges.

Sometimes the unit can be unsalvagable, because it's been situated incorrectly for so long that it's permanently bent out of square.

OR, the defroster clock might be bad.

Frost can build up for multiple reasons. Most common is the start os an iceblock. Other reasons can include condensation from door being left open or opening too much. It can also happen from backsplash from the inlet tube for the ice maker. If the fridge is running non stop. It sounds like the ice block is forming and the temps are not getting to the program temps. If at factory setting the freezer should be at or around 0 degrees and fridge should be between 42 and 48 degrees. Has the fridge shutdown at all to go into defrost? The defrost timer may have went out and is causing an iceblock. If there is an ice block always change bimetal/ defrost thermostat.

If you need any further assistacne please feel free to comment me.

try checking the freezer door seal.
if slight gap anywhere around the door seal drawer fronts will frost up.
warm seal up with hair dryer and ease seal out with your hands..
problem often happens with door reversal.

You have a defrost problem. You will need to replace your defrost system. Before you put the parts on, you need to completely thaw out your unit. You can do this by leaving it open all day or night or by placing a fan close to it with the door open. We have parts, so please give us a call and we'll be sure to ge the right parts out to you right away. We look forward to hearing back from you.

I have same problem, it usually happens after someone leaves door open too long or after 4-6 months. I usually place two frozen milk jugs full of water in the upper fridge and tape the upper fridge door closed at night before bed so the kids don't open and let the upper food get warm., Unplug the fridge and open the freezer and remove all drawers (place excess frozen food in freezer in garage) , leaving the freezer open with a towel in the bottom to catch the melting water from the back panels inside and the next morning wipe the fridge bottom clean and plug it back up and replace everything. I hate that I paid so much for this fridge and have to defrost a couple times a year. However found out too late to return back to the store. It seams like it should have a cycle that heats the back plate every so often to warm and evaporate the ice that collects, but I haven't heard or can't find anything on that.

Kimsukie.

Almost certainly, you have a leak within the freezer compartment.

The cooling system will use a divertor valve to concentrate coolant to the fridge or freezer compartment - whichever is necessary to maintain selected temperatures.

If a seal within either compartment is compromised and leaks then the coolant will be excessively diverted to that area in an attempt to lower it's temperature - the other section will suffer since more coolant is diverted to the weaker area; the weaker area that is being excessively cooled will also have more moist air circulating, hence moisture will contribute to a build up of ice - exacerbating the problem.

Ensure that both fridge and freezer doors are closing properly, if they appear to be secure then also check that the seals are airtight - there should be no ice accumulating around them.

You might need to re-align the doors, or less likely, replace the door seals.

Please reply if you require further clarification or help.

your refrigerator door (ajar) check coldcontrol

open the freezer door, can you here a fan blowing??? if not that may be your problem, the evaporator fan not blowing cool airr up to refrig section,

Is your fan blowing in the freezer? Frost on the back wall of the freezer usually indicates a defrost problem... defrost themostate, heaters, take back panel off and check evap for frost build up and if your fan in working.