What is the bottom part of a refrigerator called?
On the Maytag MBB2256GES bottom-mount refrigerator, the “bottom part” is most often the machine compartment (also called the compressor compartment). It’s the lower area where the sealed-system and airflow parts live, and it’s typically accessed from the back or behind a lower grille.
- Machine compartment: general name for the lower service area
- Compressor compartment: focuses on the compressor and start components
- Lower rear access area: what many owners call the panel area on the back
- Base grille / toe grille area: the front lower trim area (if equipped)
Depending on the exact configuration, the bottom area can include:
- Compressor and start components (relay/overload)
- Condenser coil and condenser fan (heat removal)
- Drain pan (evaporates defrost water)
- Wiring and control components
Here are a few example parts for this model that relate to the “bottom area”:
| Area | Example part | What it does |
|---|---|---|
| Sealed system | Refrigerator compressor W10160407 | Pumps refrigerant through the system |
| Compressor start | Refrigerator overload and ptc start relay WP12555902 | Helps the compressor start and protects it |
| Drain/condensation | Tray, drip e WPW10292802 | Collects defrost water for evaporation |
Knowing the correct name helps you troubleshoot and order the right parts. For example, a warm fridge with a running fan can point you toward the compressor compartment, while water under the unit often points to the drain pan area.
- Unplug the refrigerator before removing any rear access panel.
- Keep the condenser area clear of dust for better cooling performance.
- If you smell electrical burning or hear repeated clicking near the compressor, stop and inspect the start components.
For cooling airflow issues that can be related to temperature problems, we also recommend: how to fix your evaporator cooling fan.
Last updated: January 2026
Are bottom mount fridges better?
Bottom-mount refrigerators are better for many households because the fresh-food section sits at eye and waist level, so you reach milk, produce, and leftovers more easily. For the Maytag MBB2256GES, that layout typically improves day-to-day convenience while keeping freezer storage in a lower pull-out drawer.
- You cook often and want fresh-food items at comfortable reach
- You prefer wide freezer drawers for frozen foods and bulk items
- You want fewer bends for everyday items (drinks, produce, deli items)
- You like better organization in the refrigerator compartment
- You access the freezer more than the refrigerator (freezer is lower)
- You want the lowest upfront cost (top-freezer models are often less expensive)
- You need the lightest freezer access (drawers can be heavier when full)
| Feature | Bottom-mount (like MBB2256GES) | Top-freezer |
|---|---|---|
| Fresh-food access | Easier, more ergonomic | Lower shelves require more bending |
| Freezer access | Lower drawer, good organization | Upper door/shelves, easy to see |
| Best for | Fresh-food focused households | Freezer-heavy households |
Most people open the refrigerator section far more than the freezer. A bottom-mount design puts the most-used items where you naturally reach, which can make meal prep faster and reduce strain.
- Keep door seals clean and closing tightly to hold temperatures steady
- If you notice warm spots or weak airflow, check the evaporator fan area for ice buildup
- If ice production is important, keep the ice maker and water supply line in good shape
For ice-related upgrades or repairs on this model, we often see customers start with the refrigerator ice maker D7824706Q.
Last updated: January 2026
Why does my Maytag bottom freezer build up ice on the bottom?
Ice on the bottom of a Maytag MBB2256GES bottom-mount freezer almost always happens when the defrost drain is clogged or frozen. Defrost water can’t flow to the drain pan, so it spills into the freezer floor and refreezes into a sheet of ice.
- Unplug the refrigerator or turn off power at the breaker.
- Remove the freezer drawer/bins and look for a solid ice slab on the freezer floor.
- Find the drain trough under the evaporator cover; if it’s iced over, the drain is blocked.
- Melt the ice with a hair dryer on low (keep heat moving) or use hot towels.
- Flush the drain with hot water using a turkey baster until it flows freely.
- Clear the drain tube from the back (near the drain pan) if flushing doesn’t open it.
Common causes include food debris, ice crystals, or sludge in the drain tube. After clearing it, we recommend:
- Cleaning the drain opening and trough area.
- Making sure packages don’t block the rear air vents.
- Keeping door openings brief to reduce moisture load.
- Checking door seals for gaps or tears.
If the drain keeps freezing or you see heavy frost buildup behind the freezer back panel, a defrost system issue can contribute.
| Symptom | Most likely area | What it points to |
|---|---|---|
| Ice only on freezer floor | Defrost drain path | Clog or frozen drain |
| Heavy frost on back wall | Defrost system/airflow | Defrost problem or fan issue |
| Warm freezer plus frost | Evaporator airflow | Fan blade/motor issue |
If airflow is weak or noisy, inspect the evaporator fan area; a damaged blade can reduce airflow and worsen frost patterns. The correct replacement for this model is the refrigerator evaporator fan blade WP2169142.
A blocked drain doesn’t just create ice; it can also cause water leaks, drawer sticking, and temperature swings that affect food quality.
For additional prevention tips that reduce moisture and ice maker related issues, use our guide: how to prevent water dispenser and ice maker problems.
Last updated: January 2026
What is the most common problem with Maytag refrigerators?
The most common Maytag refrigerator problem (including the Maytag MBB2256GES bottom-mount) is a cooling complaint: the fresh food section is warm, temperatures swing, or the unit runs too long. The next most common issue is ice maker trouble, often tied to airflow, dirty coils, or water supply problems.
- Refrigerator not cold enough but freezer seems OK
- Freezer not cold enough and ice cream is soft
- Unit runs constantly or cycles too often
- Frost buildup on the freezer back wall
- Ice maker stops making ice or makes small/hollow cubes
- Confirm settings: Set the refrigerator to about 37°F and the freezer to about 0°F.
- Check door sealing: Look for gaps, torn gasket areas, or doors that do not close on their own.
- Improve airflow: Do not block vents with food packages; leave space around the back wall.
- Clean condenser coils: Dusty coils make the compressor run longer and cool worse.
- Listen for the evaporator fan: In many bottom-mount designs, a failed fan or fan blade reduces airflow to the refrigerator section.
If troubleshooting points to a failed component, these are common matches for cooling and ice issues on this model:
| Symptom | Likely area | Example part for MBB2256GES |
|---|---|---|
| Fresh food warm, freezer OK | Evaporator airflow | Evaporator motor WPW10128551 |
| Fan noise, weak airflow | Fan blade damage | Refrigerator evaporator fan blade WP2169142 |
| No ice or intermittent ice | Ice maker system | Refrigerator ice maker D7824706Q |
Cooling and ice maker problems often start small (restricted airflow, dirty coils, minor sealing issues) and then lead to longer run times, warmer temps, and food spoilage. Addressing the basics first helps you avoid replacing parts that are still good.
- How to replace the water filter in a Maytag refrigerator
- How to fix your evaporator cooling fan
- Common refrigerator ice maker problems and solutions
Last updated: January 2026





