Whirlpool WRX735SDBM04 bottom-mount refrigerator Parts

For Whirlpool model WRX735SDBM04, we do not recommend removing the cardboard-like panel or cover at the bottom/rear area. That piece is typically a protective air-flow and safety cover for the machine compartment (condenser area) and helps the refrigerator cool properly; see the WRX735SDBM04 owner's manual.

What that “cardboard” piece usually is

On many bottom-mount and French door refrigerators, the material that looks like cardboard is a fiberboard machine-compartment cover (sometimes paired with a toe grille). It is designed to stay in place.

Common purposes include:

• Directing airflow across the condenser coil and condenser fan
• Protecting wiring and components from bumps, dust, and pests
• Reducing noise and vibration
• Helping the unit maintain normal operating temperatures

When it is OK to remove something (and when it is not)

You may remove only packaging materials used for shipping, but not installed covers.

Item you might see	Remove it?	Notes
Shipping tape, foam blocks, plastic wrap	Yes	Remove from doors, shelves, drawers, and exterior surfaces.
Cardboard sheet sitting loose under the unit	Yes	Only if it is clearly not fastened and is labeled as packing.
Fastened fiberboard/cover panel under or behind the unit	No	Leave installed; it is part of the cooling system design.

Quick checks before you decide

Use these checks on WRX735SDBM04 before removing anything:

• If it is held by screws/clips and fits the cabinet, treat it as a permanent cover.
• If it blocks access to the condenser area, it is likely there by design.
• If it is loose, printed “packing,” or clearly temporary, it is likely shipping material.

Why it matters

Removing a machine-compartment cover can change airflow around the condenser, which can lead to longer run times, warmer temperatures, and extra strain on the sealed system.

Last updated: January 2026

On Whirlpool model WRX735SDBM04, a bottom leak is most often caused by a clogged or frozen defrost drain; defrost water can overflow the drain trough, run under the crisper area, and end up dripping onto the floor. We focus first on clearing the drain path and confirming the drain tube is seated correctly.

Quick checks we recommend (fastest wins first)

• Look for a sheet of ice or standing water under the crisper drawers (common sign of a blocked defrost drain).
• Check for water trails starting at the back wall inside the fresh food section.
• Inspect the freezer floor for ice buildup near the rear (defrost water not draining).
• Confirm doors close fully and gaskets seal; warm air can increase frost and overwhelm the drain.
• If the unit has an ice maker or water dispenser, check for leaks only when the valve is energized (during ice fill or dispensing).

Clear a clogged or frozen defrost drain

We follow the defrost drain steps and access points shown in the WRX735SDBM04 manual.

Typical safe approach:

1. Unplug the refrigerator.
2. Remove items and drawers as needed to access the drain trough area.
3. Melt visible ice with warm air (hair dryer on low, kept moving) and/or warm water.
4. Flush the drain with warm water until it flows freely to the drain pan area.
5. Recheck after 24 hours for recurring water.

If the drain outlet or extension is damaged, loose, or not directing water correctly, replacing the drain components can stop repeat leaks; a common related part for this model is the refrigerator drain tube W10619951.

Other common bottom-leak causes (and how to tell)

What you see	Most likely cause	Where to inspect
Water only after defrost cycles	Defrost drain restriction	Drain trough and drain tube
Water near front corners	Door not sealing, heavy condensation	Door gaskets, door alignment
Water appears during ice making	Water inlet or ice fill leak	Rear valve, tubing, ice maker fill area
Constant drip at back	Supply line/tubing seep	Rear connections and tubing runs

Why it matters

A recurring bottom leak can lead to floor damage and can also refreeze into an internal ice sheet that blocks airflow, causing temperature swings in the fresh food section.

Last updated: January 2026

For the Whirlpool WRX735SDBM04 bottom-mount refrigerator, the most common service issue we see across Whirlpool refrigerators is poor cooling caused by restricted airflow or heat not being released properly, often from dusty condenser coils or a condenser fan problem. Start with basic maintenance checks before replacing parts; see the WRX735SDBM04 manual.

Quick checks that fix many “not cooling” complaints

• Make sure the toe grille and rear air path are not blocked by dust, pet hair, or boxes.
• Confirm the doors seal fully and close on their own.
• Set temperatures back to normal targets (about 37°F fresh food, 0°F freezer).
• Avoid overpacking; leave space for air to circulate.
• Give the refrigerator 24 hours to stabilize after major setting changes.

Common causes and what they point to

If basic checks do not help, these are frequent culprits on Whirlpool refrigerators like WRX735SDBM04:

Symptom you notice	Likely area to check	Example compatible part for this model
Warm fridge and warm freezer	Condenser airflow, sealed system	Refrigeration appliance condenser fan motor W11613295
Freezer cold but fridge warm	Airflow between compartments (damper)	Refrigerator damper control assembly WPW10196393
Temps swing up and down	Temperature sensing/control	Refrigerator thermistor W10316760
Clicking, won’t start, intermittent cooling	Start components or compressor circuit	Refrigerator run capacitor WPW10350564

Why it matters

When the condenser area cannot shed heat, the compressor runs longer, temperatures drift, and food quality suffers. Catching airflow and control issues early can prevent bigger cooling failures.

When to stop and call for service

• You hear a loud buzzing/clicking repeatedly and cooling never starts.
• The unit is running constantly and both sections stay warm.
• You see heavy frost patterns that return quickly after defrosting.

Last updated: January 2026

A Whirlpool refrigerator like model WRX735SDBM04 typically lasts 10 to 15 years. Keeping the condenser area clean, maintaining good door seals, and fixing cooling or ice maker issues early can help you reach the upper end of that range (see the WRX735SDBM04 owner’s manual).

What affects lifespan the most

• Condenser airflow and cleanliness (dust buildup makes the compressor work harder)
• Door gasket condition (warm air leaks increase run time and frost)
• Ice maker and water system health (leaks and clogs can cause secondary damage)
• Stable temperatures (avoid frequent warm-ups from propped doors)
• Power quality (surges and repeated breaker trips stress electronics)

Quick maintenance schedule (practical)

Task	How often	What it helps prevent
Clean/vacuum condenser area	Every 6 to 12 months	Overheating, long run times
Check door seal for gaps/tears	Every 3 to 6 months	Frost, warm fridge temps
Replace water filter (if used)	About every 6 months	Low flow, bad taste/odor
Verify temps (37°F fridge, 0°F freezer)	Monthly	Food spoilage, overworking

Why it matters

A refrigerator’s most expensive wear items are in the sealed system and cooling controls. Simple upkeep reduces compressor run time and temperature swings, which are two of the biggest drivers of premature failure.

Parts that commonly extend service life (when symptoms show up)

If you’re troubleshooting cooling performance or temperature swings on WRX735SDBM04, these model-compatible parts are often involved:

• Refrigerator water filter EDR4RXD1 (water quality and flow)
• Refrigerator freezer door gasket (gray) WPW10714545 (air leaks and frost)
• Refrigerator thermistor W10316760 (temperature sensing)

Last updated: January 2026