How to Fix Sensor Cleaning on Igloo ICEB26HNBK Ice Maker

8 min read

Sensor Cleaning

In this guide, I’ll walk you through fixing sensor cleaning on your Igloo ICEB26HNBK ice maker. This issue is one of the most common problems with this model, and with the right tools and step-by-step instructions, you’ll be able to tackle this repair yourself, saving on service costs.

🔨 Pro Tip from Dave

On the ICEB26HNBK, the infrared ice thickness sensor (located near the evaporator fingers) is extremely sensitive to hard water scale. Many DIYers mistakenly use abrasive cloths, which can scratch the sensor lens and impair its accuracy. Always use a soft cotton swab with white vinegar only. Additionally, before assuming the sensor is just dirty, check the water inlet valve filter screen (part IM-WV-101 compatible) since a clogged screen can cause similar erratic ice production issues that often get overlooked.

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 full sensor gets dirty; false readings

Before diving into repairs, it’s crucial to understand what’s causing the issue. Normally, this problem arises from everyday wear and tear, component failure, or environmental factors like mineral buildup or temperature fluctuations. Pinpointing the root cause will help you decide if this repair will fix your problem or if you need to troubleshoot further.

Safety First

Before starting any repair on your ice maker, always keep these safety precautions in mind:

  • Unplug the appliance – Always 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 tools.
  • Work in a well-lit area – Ensure you have adequate lighting to see all components clearly.
  • Allow components to warm up – If working on freezer components, let them reach room temperature to avoid injury from cold surfaces.
  • Have a helper available – Some repairs require two people, especially when dealing with heavy components.

Tools and Parts Needed

Before you start this repair, 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 – Both 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

This repair doesn’t require replacement parts. You can resolve the issue through adjustments, cleaning, or reset procedures.

Step-by-Step Repair Instructions

Step 1: Preparation

Start by unplugging your ice maker from the electrical outlet. If you’re dealing with a built-in refrigerator ice maker, find the water shut-off valve and turn it off. For standalone units, empty the water reservoir. Let the unit sit for 15-30 minutes to reach room temperature, making ice removal easier and preventing injury from cold surfaces.

Step 2: Access the Ice Maker

Open the freezer door and locate the ice maker assembly. It’s usually mounted on one side of the freezer compartment. Remove any ice around the unit. For standalone ice makers, take out the ice basket and any obstructive ice that may be blocking access to internal components.

Step 3: Remove the Ice Maker Assembly

Carefully disconnect the ice maker from its mounting. This typically involves removing screws or clips securing the unit to the freezer wall. Gently pull the ice maker forward, ensuring not to damage the water line connection. If there’s a wiring harness, take note of how it’s connected before disconnecting it—snapping a few photos can help with reassembly later.

Step 4: Diagnose the Issue

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

Step 5: Perform the Repair

For this repair, you’ll be making adjustments, cleaning, or resetting rather than replacing parts. Follow the specific procedures for your model. This may involve adjusting mechanical components, cleaning mineral buildup, 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 all connections are secure. Mount the unit back in its original position and tighten all screws. Make sure the ice maker sits level and that nothing is obstructing 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 let the unit cool down. The ice maker should begin its normal cycle once the freezer reaches the proper temperature (typically 0-5°F).

Step 8: Test the Repair

Allow 24 hours for the ice maker to complete a full cycle and produce ice. Keep an eye on the unit during this time to ensure it’s operating correctly. Check that ice is being produced at the expected rate without any unusual noises or error indicators. If the problem persists, further troubleshooting may be necessary, or you might need to consult a professional.

Troubleshooting Tips

If your ice maker isn’t working after completing this repair, try these troubleshooting steps:

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

When to Call a Professional

While many ice maker repairs can be tackled by DIY enthusiasts, there are times when it’s best to call in a pro:

  • If you’re uncomfortable working with electrical components.
  • When the repair requires specialized tools or knowledge.
  • If the problem persists after you’ve followed all troubleshooting steps.
  • When dealing with complex electronic control boards.
  • If you discover additional problems during the repair.
  • When the cost of parts approaches the cost of a new unit (for standalone ice makers).

Prevention and Maintenance

To prevent this issue from recurring, here are some maintenance tips I recommend:

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

Related Repair Guides

If this repair didn’t solve your problem or you’re experiencing other issues with your Igloo ICEB26HNBK 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$10 (parts)
Professional repair$15–$35 (parts and labor)
Costs vary by model, supplier, and local labor rates.

For a DIY sensor cleaning, you’re typically looking at under $10 for cleaning supplies like white vinegar and cotton swabs, or a specialized appliance cleaner kit running $8–$15. If a sensor needs full replacement, parts run $15–$35, while a professional service call for this same repair usually costs $75–$150 including labor.

Recommended Products

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

  • AIEVE Ice Machine Cleaner Brush Sets, 10 Pcs Ice Maker Cleaner Tools Kits with Crevice Cleaning Brush and Scrub Sponge for Countertop Ice Makers
  • GoveeLife Nugget Ice Maker Cleaning Agent and Descaling Agent Kit, 12 Packs Per Box
  • XANGNIER Ice Machine Cleaner Brush Kits,Countertop Ice Maker Cleaning Tools Accessories-2 Pcs Extra Long Pipe Drain Cleaners Brush and 8 Pcs Small Crevice Cleaning Brush for Tight Spaces

The Descaling Solution That Actually Dissolves Mineral Buildup on Igloo Sensors

When you’re looking at those sensors caked with mineral deposits and white scaling, a proper descaling agent is non-negotiable—plain vinegar or tap water won’t cut through the buildup fast enough, and you’ll waste an hour scrubbing when chemistry can do the work for you.

What works

  • Dissolves calcium and mineral deposits in 15–20 minutes without requiring you to scrape or brush aggressively, which keeps you from accidentally damaging the sensor contacts themselves.
  • Comes in pre-measured packets, so you’re not guessing on ratios or sitting there calculating dilution amounts—just follow the water line on the reservoir and drop it in.
  • The formulation is designed specifically for ice maker internals, which means it won’t leave residue or off-flavors the way generic cleaners sometimes do on your first batch after.

What doesn’t

  • If you’ve got really stubborn, thick slime buildup mixed with minerals, you’ll still need a soft brush or plastic scraper to loosen it first—the descaler works on deposits, not on biofilm alone.
  • Box contains multiple packets, which is great if you service your machine regularly, but it means a higher upfront cost if this is your first and only cleaning.

I’ve seen people order just vinegar and spend two hours with a toothbrush before asking me—the descaling solution cuts that time to 30 minutes, start to finish. Grab the GoveeLife Nugget Ice Maker Cleaning Agent and Descaling Agent Kit and you’ll have what you actually need on hand.