Whirlpool Refrigerator Model Wrx735Sdbm00 Ice Maker Troubleshooting

ByJim Boslice Home & Kitchen

If your Whirlpool WRX735SDBM00 ice maker isn’t producing ice, start by checking the water supply, resetting the ice maker module, and verifying the freezer temperature is set to 0°F (-18°C).

Common issues often involve a clogged water filter, a kinked water line, or a frozen fill tube, all of which are usually simple DIY fixes you can tackle with basic tools.

Picture this: it’s a scorching summer day, you reach for a glass, and head to the refrigerator, only to find the ice dispenser mockingly empty. That crisp clinking sound of fresh ice cubes is replaced by a frustrating silence. For any DIY homeowner, a non-producing ice maker isn’t just an inconvenience; it’s a challenge waiting to be solved.

You don’t need to be a refrigeration technician to diagnose and fix many common ice maker issues. With a little patience, the right tools, and a systematic approach, you can restore that frosty goodness to your kitchen. We’re going to walk you through everything you need to know about getting your Whirlpool refrigerator model WRX735SDBM00 ice maker troubleshooting journey started, from basic checks to more involved component diagnostics.

This guide is designed to empower you, the Jim BoSlice Workshop enthusiast, with the confidence to tackle this project head-on. By the end, you’ll have a clear roadmap to identify the problem and get your ice maker back in top shape, saving you time, money, and the hassle of lukewarm drinks.

Safety First: Preparing for Your Ice Maker Repair

Before you even think about grabbing a screwdriver, safety must be your absolute top priority. Working with appliances that combine electricity and water can be hazardous if not approached correctly. Always treat electrical components with respect.

Disconnecting Power

This is the most crucial first step. You must completely disconnect power to your refrigerator before performing any checks or repairs.

  • Unplug the Appliance: Reach behind the refrigerator and pull the power cord directly from the wall outlet. Do not simply turn off the circuit breaker unless you cannot access the plug.
  • Verify Power is Off: Once unplugged, try to turn on the refrigerator light or dispenser to confirm there’s no power.
  • Secure the Area: Ensure the plug cannot accidentally be reinserted while you are working.

Essential Tools and Supplies

Having the right tools on hand will make the job smoother and safer. Most of these are standard items you’d find in any well-equipped DIY workshop.

  • Screwdrivers: Phillips and flathead are typically needed for removing access panels.
  • Nut Driver Set: Various sizes might be required for specific fasteners.
  • Pliers: For gripping and manipulating small components or hoses.
  • Multimeter: Essential for testing electrical continuity and voltage if you delve into advanced diagnostics.
  • Flashlight or Headlamp: For illuminating dark areas inside the freezer compartment.
  • Towels/Rags: To catch any residual water from lines or melted ice.
  • Bucket or Bowl: For draining water if necessary.
  • Safety Glasses: Always protect your eyes when working on any project.
  • Work Gloves: To protect your hands from sharp edges or cold components.

Understanding Your Whirlpool WRX735SDBM00 Ice Maker System

Knowing how your ice maker operates is half the battle when it comes to troubleshooting. The Whirlpool WRX735SDBM00 model uses a common design, and understanding its basic components will help you pinpoint potential issues.

Key Components of the Ice Maker

Your ice maker isn’t just one single unit; it’s a system of interconnected parts working in harmony.

  • Ice Maker Module: The main unit containing the motor, gears, and heating element that forms and ejects ice.
  • Water Inlet Valve: An electrically controlled valve that opens to allow water into the ice maker fill tube.
  • Fill Tube: A small tube that directs water from the water inlet valve into the ice maker’s mold.
  • Ice Level Arm/Sensor: A wire arm or optical sensor that detects when the ice bucket is full, signaling the ice maker to stop production.
  • Water Filter: Filters impurities from the water supply before it reaches the ice maker and dispenser.
  • Freezer Temperature Sensor: Helps the refrigerator maintain the correct temperature for ice production.

How the Ice Maker Works (Briefly)

The process is fairly straightforward. Once the freezer reaches the correct temperature and the ice level arm indicates more ice is needed:

  1. The water inlet valve opens, allowing filtered water to flow through the fill tube into the ice maker mold.
  2. The water freezes solid in the mold.
  3. A heating element briefly warms the mold to loosen the ice.
  4. The ejector motor rotates, pushing the ice cubes out of the mold and into the ice bucket.
  5. The ice level arm or sensor then checks the ice bucket level, and the cycle repeats if more ice is needed.

Common Symptoms and Initial Checks for No Ice Production

Identifying the specific symptom your ice maker is exhibiting can significantly narrow down the potential causes. Let’s look at some common problems you might encounter with your Whirlpool refrigerator model WRX735SDBM00 ice maker.

No Ice at All

This is the most common complaint. If your ice maker is completely dormant, no cubes whatsoever, it points to a fundamental issue in the ice-making cycle.

Start by checking the obvious: Is the ice maker turned on? Many models have a small power switch on the unit itself. Ensure the ice level arm isn’t stuck in the “up” position, which tells the ice maker the bin is full.

Small or Malformed Ice Cubes

If you’re getting ice, but it’s not quite right – tiny, hollow, or misshapen – this usually indicates an issue with the water supply or fill process.

This symptom often suggests a partial blockage in the water line or a weak water flow to the ice maker. It could also be related to freezer temperature fluctuations.

Ice Maker Not Dispensing

The ice maker produces ice, but when you press the dispenser paddle, nothing comes out. This means the problem lies with the dispenser mechanism, not the ice-making unit itself.

Look for ice jams in the dispenser chute or issues with the auger motor that pushes the ice from the bin to the dispenser opening.

Water Leaks Around the Ice Maker

Any signs of water pooling in the freezer or dripping from the ice maker indicate a leak. This is a problem that needs immediate attention to prevent further damage.

Leaks often stem from a cracked fill tube, a faulty water inlet valve, or a clogged drain line causing water to overflow.

Essential Steps for whirlpool refrigerator model wrx735sdbm00 ice maker troubleshooting

Now that we’ve covered the basics, let’s dive into actionable steps for your Whirlpool refrigerator model WRX735SDBM00 ice maker troubleshooting. Remember to keep safety in mind and follow these steps methodically.

Resetting the Ice Maker

Sometimes, a simple reset is all that’s needed to kickstart a stubborn ice maker. It’s like rebooting your computer.

Locate the reset button, usually a small red or black button on the side or bottom of the ice maker module. Press and hold it for 3-5 seconds. If there’s no button, unplugging the refrigerator for 5 minutes and then plugging it back in can serve as a “hard reset.”

Checking the Water Supply Line and Valve

No water, no ice. This is a frequent culprit.

  1. Inspect the Water Line: Carefully pull the refrigerator out from the wall. Examine the thin plastic water supply line running from your household water shut-off valve to the back of the refrigerator. Look for kinks, pinches, or damage.
  2. Check the Shut-Off Valve: Ensure the water shut-off valve (often under the sink or behind the fridge) is fully open. If it’s partially closed, water flow will be restricted.
  3. Feel the Fill Tube: Open the freezer door and locate the fill tube that directs water into the ice maker mold. If it’s frozen solid, it indicates a lack of water flow, or a leak causing ice buildup. You can gently defrost it with a hairdryer on a low setting (keep it moving, don’t overheat plastic) or allow it to melt naturally over several hours (with the refrigerator unplugged and towels to catch water).

Inspecting the Water Filter

A clogged water filter is one of the most common reasons for reduced ice production or no ice at all.

Your Whirlpool WRX735SDBM00 refrigerator has a water filter, usually located in the upper right corner of the fresh food compartment. If it hasn’t been replaced in the last 6 months, it’s a prime suspect. Remove the filter and check for blockages. Try running the ice maker without the filter (if your model allows) or with a new filter to see if that resolves the issue. Always use genuine Whirlpool filters or high-quality compatible alternatives.

Verifying Freezer Temperature

The freezer needs to be cold enough for ice to form efficiently.

The ideal temperature for ice production is 0°F (-18°C). If your freezer is too warm (e.g., set to 10°F), the ice maker won’t function correctly or will produce ice very slowly. Use a separate freezer thermometer to verify the actual temperature, as the refrigerator’s display might not always be perfectly accurate.

Clearing Ice Clumps and Obstructions

Sometimes, the simplest issues are the most overlooked.

Open the freezer and inspect the ice bucket and the ice maker unit itself. Look for large clumps of ice that might be jamming the ejector arm or blocking the dispenser chute. Use a plastic spatula or wooden spoon to gently break up any ice blockages. Avoid using sharp metal objects that could damage the components.

Advanced Diagnostics: Diving Deeper into Ice Maker Problems

If the basic troubleshooting steps haven’t solved your problem, it’s time to dig a little deeper into the internal workings of your ice maker. This section requires a multimeter and a bit more comfort with appliance repair.

Testing the Water Inlet Valve

The water inlet valve is a common failure point. If it’s not opening, water won’t reach the ice maker.

  1. Locate the Valve: The water inlet valve is typically found on the lower back of the refrigerator where the water line connects.
  2. Check for Power: With the refrigerator plugged in (but be extremely careful!), use your multimeter to check for 120V AC at the solenoid terminals when the ice maker calls for water (e.g., after a reset). If there’s no power, the issue might be with the ice maker control board or wiring.
  3. Test Solenoid Continuity: Unplug the refrigerator again. Disconnect the electrical connectors from the solenoid. Set your multimeter to the ohms setting. Place the probes on the solenoid terminals. You should get a reading of 200-500 ohms. If it’s an open circuit (infinity or OL), the solenoid is faulty and the valve needs replacement.

Examining the Ice Maker Module

The module itself contains the motor, gears, and a small control board.

Carefully remove the ice maker module from the freezer compartment (usually held by a few screws). Look for any visible damage, burnt spots on the circuit board, or stripped gears. If you suspect the module is faulty, a complete replacement is often the most cost-effective solution, as internal components are rarely sold separately.

Checking the Ice Level Arm or Sensor

If the ice maker thinks the bin is full, it won’t produce ice.

Ensure the metal ice level arm moves freely and isn’t bent or obstructed. For models with optical sensors (often found at the back of the ice bin or on the ice maker unit), ensure the sensor’s “eyes” are clean and not blocked by ice or debris. Wipe them gently with a soft cloth. If the sensor is faulty, the entire ice maker module often needs replacement.

Inspecting the Ejector Motor and Gears

If the ice maker fills with water but doesn’t eject the ice, the motor or gears could be at fault.

With the ice maker module removed and visually inspected, manually try to turn the ejector gears. They should move smoothly. If they’re stiff, broken, or if the motor hums but doesn’t turn the gears, the motor or gears within the module are likely damaged. Again, this usually necessitates replacing the entire ice maker module.

Troubleshooting the Dispenser Assembly

If ice is being made but not dispensed, focus on the front of the freezer.

  1. Clear the Chute: Use a wooden spoon or plastic spatula to clear any ice blockages in the dispenser chute. Often, a single large cube or frost buildup can stop the flow.
  2. Test the Auger Motor: The auger motor turns the spiral mechanism that pushes ice from the bin to the dispenser. Access the auger motor (usually by removing the ice bucket and any surrounding panels). With the refrigerator plugged in (again, extreme caution!), activate the dispenser. You should hear the motor engage. If not, check for power to the motor with a multimeter or test its continuity when unplugged.
  3. Examine the Door Switch: The dispenser often has a door switch that prevents it from operating when the freezer door is open. If this switch is faulty, it might prevent dispensing even when the door is closed.

When to Call a Professional: Knowing Your Limits

While the Jim BoSlice Workshop encourages DIY, there are times when calling in a professional appliance technician is the smartest and safest option. Knowing your limits is part of being a responsible DIYer.

Complex Electrical Issues

If you’ve tested components with a multimeter and suspect issues with the main control board, wiring harness, or other advanced electrical circuits, it’s best to step back. These components can be expensive to replace, and incorrect diagnosis or installation can lead to further damage or safety hazards.

Specialized Tools Required

Some diagnostic steps or repairs might require specialized refrigeration tools (like refrigerant gauges or vacuum pumps) that are not typically found in a home workshop. If the repair goes beyond basic hand tools and a multimeter, consider professional help.

Warranty Considerations

If your Whirlpool WRX735SDBM00 refrigerator is still under warranty, attempting complex repairs yourself could void that warranty. Always check your warranty terms before undertaking significant repairs. A professional repair might be covered, saving you money in the long run.

Maintaining Your Ice Maker for Long-Term Performance

Once you’ve got your ice maker working again, a little preventative maintenance can help keep it humming along for years. Think of it like tuning up your favorite power tool.

Regular Filter Replacement

This is the easiest and most impactful maintenance step. Replace your refrigerator’s water filter every 6 months, or more frequently if your water supply has high sediment or mineral content. A fresh filter ensures good water flow and cleaner, better-tasting ice.

Keeping the Freezer Clean

Periodically empty the ice bin, wash it with warm, soapy water, and dry it thoroughly. This prevents ice buildup, odors, and potential blockages. Also, ensure the vents inside the freezer are clear of food items, allowing for proper airflow and temperature regulation.

Seasonal Checks

Take a moment every few months to visually inspect the water line behind the refrigerator for kinks or leaks. If you live in an area with hard water, consider flushing the water lines annually (refer to your refrigerator’s manual for specific instructions) to prevent mineral buildup.

Frequently Asked Questions About Whirlpool Refrigerator Ice Makers

Why is my Whirlpool ice maker making a grinding noise?

A grinding noise often indicates an issue with the auger motor or a blockage in the dispenser chute. Large ice clumps can get stuck and cause the auger to strain, resulting in a grinding sound. First, clear any visible ice jams. If the noise persists, the auger motor might be failing or its gears could be stripped.

How often should I replace the water filter on my WRX735SDBM00?

Whirlpool recommends replacing the water filter in your WRX735SDBM00 every six months. This ensures optimal water quality for both drinking and ice production, and helps maintain proper water flow to the ice maker.

Can I run my refrigerator without the ice maker connected?

Yes, you can typically run your Whirlpool refrigerator without the ice maker connected. If you remove the ice maker, ensure the water supply line to the ice maker fill tube is properly capped off or the water inlet valve is completely shut off to prevent leaks. The refrigerator will function normally for cooling and freezing.

What if my ice maker is frozen solid?

If your ice maker is frozen solid, it often means the fill tube is continuously dripping or the water inlet valve is leaking. First, unplug the refrigerator and allow the ice maker to completely thaw. Use towels to absorb the melting water. Once thawed, inspect the fill tube for cracks and test the water inlet valve for proper operation and leaks before restarting the unit.

You’ve now got a comprehensive toolkit for tackling your Whirlpool refrigerator model WRX735SDBM00 ice maker troubleshooting. From the initial safety checks to advanced diagnostics, you’re equipped to handle most common issues. Remember, the satisfaction of a DIY repair, especially one that brings back the simple pleasure of ice-cold drinks, is incredibly rewarding. So roll up your sleeves, stay safe, and get that ice flowing again!

Jim Boslice
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