How to Fix Freezer Temperature Check on Whirlpool 2198597 Ice Maker

8 min read

Freezer Temperature Check

In this guide, I’ll show you how to fix the freezer temperature check issue on your Whirlpool 2198597 ice maker. This is a common problem, and with the right tools and detailed steps, you can handle this repair yourself and save money on service calls.

🔨 Pro Tip from Dave

When dealing with the Whirlpool 2198597, don’t rush to replace the entire ice maker module without checking the freezer thermistor (part number WPW10225581). Many technicians jump straight to the module, missing out on a cheaper fix. A common issue is corrosion at the thermistor harness connector near the ice maker bracket, leading to false temperature readings. Always inspect and clean that connector first before ordering costly parts.

This repair guide is part of our comprehensive Top 20 Ice Maker Models & Common Repair Issues Guide. Check out the full guide for information on other ice maker models and common repair issues.

Understanding the Problem

Ice production stops; freezer not maintaining proper temp

Before diving into the repair, it’s crucial to understand the underlying problem. Typically, this issue arises from normal wear and tear, component failures, or environmental factors like mineral buildup or temperature fluctuations. Identifying the root cause will guide you in determining whether this fix will resolve the issue or if further troubleshooting is required.

Safety First

Before starting any repair on your ice maker, always follow these safety precautions:

  • Unplug the appliance – Disconnect power before working on any electrical components.
  • Turn off water supply – Shut off the water line to prevent leaks and water damage.
  • Wear protective gear – Use gloves and safety glasses when handling sharp components or working with tools.
  • Work in a well-lit area – Ensure adequate lighting to see all components clearly.
  • Allow components to warm up – If working on freezer components, let them reach room temperature to prevent injury from cold surfaces.
  • Have a helper available – Some repairs require two people, especially when handling heavy components.

Tools and Parts Needed

Before you start, gather the following tools and parts:

Essential Tools

  • Phillips and flathead screwdrivers – For removing screws and accessing components.
  • Nut driver set – For removing hex nuts and bolts.
  • Pliers – Regular and needle-nose pliers for gripping and manipulating small parts.
  • Multimeter – For testing electrical components and continuity.
  • Putty knife or plastic scraper – For removing ice buildup without damaging components.
  • Flashlight or work light – For illuminating dark freezer compartments.
  • Container for water – To catch any water that drains during the repair.

Replacement Parts

For this particular repair, you may not need to replace any parts. Often, the issue can be resolved through adjustments, cleaning, or reset procedures.

Step-by-Step Repair Instructions

Step 1: Preparation

Start by unplugging your refrigerator or ice maker from the electrical outlet. For built-in refrigerator ice makers, locate the water shut-off valve and turn it off. If your unit is standalone, empty the water reservoir. Allow the unit to sit for about 15-30 minutes to reach room temperature, which will simplify ice removal and help avoid injury from cold components.

Step 2: Access the Ice Maker

Open the freezer door and locate the ice maker assembly, usually mounted on the left or right side wall of the freezer. Remove any ice accumulating around it. For standalone units, remove the ice basket and any ice obstructing your access to internal components.

Step 3: Remove the Ice Maker Assembly

Gently disconnect the ice maker from its mounting by removing screws or clips securing it to the freezer wall. Carefully pull the ice maker forward, ensuring not to damage the water line. If there’s a wiring harness, take note of how it’s connected before disconnecting it, possibly snapping a few photos for reference during reassembly.

Step 4: Diagnose the Issue

With the ice maker out, inspect it closely for any visible signs of damage, wear, or malfunction. Look for cracked plastic components, damaged wiring, or indications of water damage. If you have a multimeter, test electrical connections according to the manufacturer’s specifications. This diagnostic step is key to ensuring you’re addressing the correct problem.

Step 5: Perform the Repair

For this repair, you’ll focus on making adjustments, cleaning, or performing reset procedures rather than replacing parts. Follow the specific procedures for your model, which may include adjusting mechanical parts, cleaning mineral deposits, or resetting electronic controls.

Step 6: Reinstall the Ice Maker

After completing the repair, carefully reinstall the ice maker assembly. Reconnect all wiring harnesses and water lines, ensuring that all connections are secure. Mount the unit back in its original position, tightening all screws. Verify that the ice maker is level and that there are no obstructions impeding its operation.

Step 7: Restore Power and Water

Turn the water supply back on and check for leaks around the connections. Plug the appliance back into the electrical outlet. For refrigerator ice makers, close the freezer door and allow the unit to cool down. The ice maker should resume its normal cycle once the freezer reaches the optimal temperature of 0-5°F.

Step 8: Test the Repair

Give the ice maker about 24 hours to complete a full cycle and start producing ice. Keep an eye on the unit during this time to ensure it’s functioning correctly. Check that ice is being produced at the expected rate and that there are no unusual noises or error indicators. If the issue persists, further troubleshooting may be necessary, or it might be time to consult a professional.

Troubleshooting Tips

If your ice maker remains unresponsive after this repair, consider these troubleshooting steps:

  • Check water supply – Ensure the water line isn’t kinked or blocked and that water pressure is adequate.
  • Verify temperature – The freezer temperature should be maintained between 0-5°F for optimal ice production.
  • Inspect water filter – A clogged water filter can limit flow and impede ice production.
  • Check for ice buildup – Excessive ice accumulation can prevent the ice maker from functioning properly.
  • Review error codes – If your model has a display, look for any error codes indicating additional issues.
  • Test electrical connections – Use a multimeter to confirm that all electrical connections are secure and operational.

When to Call a Professional

While many ice maker repairs can be handled by DIY enthusiasts, some situations call for professional assistance:

  • If you’re uncomfortable working with electrical components.
  • When specialized tools or knowledge are required for the repair.
  • If the problem persists after all troubleshooting steps have been followed.
  • When encountering complex electronic control boards.
  • If additional issues are discovered during the repair process.
  • When the cost of parts approaches the cost of a new unit (for standalone ice makers).

Prevention and Maintenance

To avoid this issue in the future, follow these maintenance tips:

  • Regular cleaning – Clean your ice maker according to manufacturer recommendations, typically every 3-6 months.
  • Replace water filters – Change water filters every 6 months or as advised by the manufacturer.
  • Monitor temperature – Keep your freezer at the right temperature for ice production.
  • Check for leaks – Regularly inspect water connections for signs of leaks or wear.
  • Descale regularly – In hard water areas, descale your ice maker more frequently to prevent mineral buildup.
  • Use quality water – Using filtered or purified water can prolong the lifespan of your ice maker.

Related Repair Guides

If this repair didn’t solve your problem, or if you’re facing other issues with your Whirlpool 2198597 ice maker, check out our Top 20 Ice Maker Models & Common Repair Issues Guide for information on other common problems and their solutions.

How Much Does This Repair Cost?

Repair routeTypical cost
Do it yourself$15–$35 (parts)
Professional repair$150–$300 (parts and labor)
Costs vary by model, supplier, and local labor rates.

Replacing the thermistor on your own typically costs between $15–$35 for the part, while a new ice maker module ranges from $45–$90. If you hire a professional for this diagnosis and repair, expect to pay between $150–$300, including labor. That’s a significant saving when you do it yourself.

Recommended Products

Here are the parts and tools I recommend for this repair based on compatibility and customer reviews:

  • WPW10384183 Freezer or Refrigerator ThermistorTemperature Sensor,Compatible with Whirlpool Kenmore KitchenAid Maytag Inside Replacement Parts,Replaces 2118228 AP6020677 PS11753996 EAP11753996
  • Sthovd W10511923 Ice Maker Bin Temperature Sensor Replacement for Whirlpool KitchenAid Ice Maker Refrigerator Replace WPW10511923 AP6022509 3021097 PS11755842 Refrigerator Ice Machine Bin Thermistor
  • W10511923 Ice Maker Bin Temperature Sensor, Upgraded Thermistor Replacement for Whirlpool, KitchenAid, and Kenmore Refrigerators, Replaces WPW10511923, AP6022509, 3021097, PS11755842
  • 4389102 Refrigerator Ice Maker Sensor Control Boards Kit Compatible with Whirlpool Kenmore KitchenAid Maytag Jenn Air Replaces W10757851 W10290817 AP5956767 W10193666 ADC9102 2198586 PS557945 AP313751

The Thermistor That Stops False Freezer Temperature Warnings on the 2198597

When the 2198597 throws a temperature check error, the freezer thermistor is your first replacement—it fails far more often than the control board, and swapping it takes maybe 20 minutes if you know where to look. This is the part to go to before anything else on this model.

What works

  • Drops right into the exact pocket on the 2198597’s evaporator coil bracket—no adapters or modifications needed, and the connector snaps on without forcing.
  • After replacement, the freezer actually holds steady temperature readings instead of bouncing wildly between warm and cold, which is the real tell that the old sensor was drifting.
  • The error code clears immediately once the fridge powers back on, no need for a control board reset or service mode troubleshooting.

What doesn’t

  • Won’t fix the problem if your actual issue is a clogged condenser coil—you still need to clean that separately, or the freezer will stay too warm regardless of sensor replacement.
  • You have to access the back wall panel and sometimes remove the ice maker bin to reach the sensor, so this isn’t a five-minute job even with the right part in hand.

I’ve seen plenty of people order a control board first because the error code looks like a board failure, then find swapping the board didn’t help—the thermistor was the real fault. Grab WPW10384183 Freezer or Refrigerator Thermistor and test it with a multimeter before you do anything else.