The wrt318fzdw09 ice maker kit is the essential EZ Connect field install assembly designed to add automated ice production to compatible Whirlpool top-freezer refrigerators. Manual ice trays spill often and consume valuable freezer space daily. Upgrading your fridge is a highly rewarding home improvement project. This guide covers vital troubleshooting and exact installation steps. You will soon enjoy continuous fresh ice directly in your kitchen.
Understanding the WRT318FZDW09 Ice Maker Kit
Learning about appliance components makes DIY home repairs much easier. Modern fridges often ship without this convenient accessory pre-installed today. This manufacturing choice keeps retail appliance prices lower for everyday consumers. Homeowners can add the hardware kit at a later convenient date. This specific appliance upgrade drastically improves your daily kitchen experience.
What is the Installation Assembly?
The installation assembly is a complete hardware package for your freezer. It bridges the critical gap between household plumbing and the appliance interior. It transforms a basic empty freezer into a fully automated ice station. The core system relies on a precision timed motorized mechanism internally. This motorized gear set harvests and ejects frozen cubes completely automatically.
Adding this assembly requires no advanced engineering or complex wiring skills. Manufacturers design these kits specifically for quick plug-and-play consumer installation. The pre-configured wiring harness eliminates the need for dangerous electrical splicing. Pre-drilled factory holes perfectly align with the heavy metal brackets. The modular design guarantees a seamless fit for compatible models.
Key Components in the Box
When you unbox a genuine EZ Connect kit, you find several crucial items. The main body is the motorized ice mold assembly itself. You will also receive a durable plastic ice storage bin for the shelf. The kit features a dedicated jumper wiring harness and a fill tube extender. Each piece is meticulously engineered to fit into pre-molded appliance slots.
The hardware packet includes specialized mounting screws tailored for the appliance walls. You will also find a small plastic water cup that catches incoming liquid. Some deluxe kits feature an external water inlet valve for the rear panel. These robust components withstand extreme sub-zero temperatures without cracking rapidly. Every part works in unison to deliver perfectly shaped ice cubes.
Why Upgrade to an Automatic System?
Manual ice trays are notorious for spilling water everywhere during transport. An automated kit thoroughly streamlines your busy modern kitchen routine daily. It ensures you never run out of ice during large family gatherings. Upgrading permanently increases the overall resale value of your household appliance. A steady supply of ice is incredibly convenient for fast beverage cooling.
Automated systems also improve internal freezer organization and airflow significantly. Replacing bulky plastic trays with a dedicated bin frees up shelf space. The automated mechanism eliminates the tedious chore of twisting stiff frozen trays. You avoid the messy puddles often left behind on the kitchen floor. It is a highly practical enhancement for any active household today.
How the Harvest Cycle Works
Understanding the internal harvest cycle helps diagnose future performance issues easily. A built-in thermostat monitors the mold temperature to detect fully frozen water. Once optimal freezing occurs, a small heating element activates briefly. This heater slightly melts the cube edges so they detach from the mold. Motorized ejector fingers then sweep the solid cubes into the bin below.
After the harvest sweep, the machine triggers the rear water inlet valve. A specific measured amount of fresh water flows back into the empty mold. The wire bail arm measures the current ice level inside the storage bin. If the bin is completely full, the raised arm halts further production cycles. The entire automated process repeats silently in the background all day.
Common Problems and Troubleshooting Signs
Even reliable kitchen appliances experience normal wear and tear over time. Recognizing early warning signs can save you from major accidental water damage. Troubleshooting your current setup is the first step before replacing expensive parts. You must identify the exact root cause of the mechanical failure first. Here are the most frequent structural issues homeowners encounter today.

Slow or Malformed Ice Production
If your machine produces tiny cubes, the water valve might be restricted. A clogged household filter severely reduces liquid flow to the freezer compartment. Sometimes calcium sediment builds up directly inside the plastic fill tube. Checking water pressure at the saddle valve is a crucial diagnostic step. Low pressure completely prevents the mold from filling during timed cycles.
Uneven ice cubes can also result from a poorly leveled refrigerator unit. When the appliance tilts, water flows heavily to one side of the mold. This imbalance creates giant clumps that jam the delicate ejector gear mechanism. Addressing hard water issues in your plumbing also prevents severe mineral scaling. Restoring full water pressure ensures consistently large and solid ice blocks.
Constant Water Leaks and Freezing
Water pooling inside your freezer is a major functional warning flag. This typically happens when the rear fill tube becomes misaligned or freezes solid. Incoming water deflects off the solid blockage and spills into the cavity. A malfunctioning internal thermostat can also cause dangerous overfilling and dripping. Thawing the water line usually resolves these annoying minor leaking issues.
Leaking can also originate from a cracked plastic water cup receiver. Extreme temperature fluctuations sometimes cause older plastic components to become highly brittle. If the cup cracks, water drips down the inner back wall constantly. Inspecting these plastic parts visually helps locate the exact source of leaks. Replacing the entire assembly is safer than patching cracked plastic parts.
Completely Dead Motor Mechanism
Sometimes the appliance simply stops cycling altogether without any clear warning. This strongly indicates a burnt motor or faulty micro-switch in the control head. If the bail arm gets permanently stuck upward, production halts completely. Electrical surges can easily fry the sensitive internal circuit board components. Installing a completely new assembly resolves this mechanical failure permanently.
A standard multimeter can test the internal thermal fuse for electrical continuity. If the fuse is blown, the motorized gears will never receive active power. Moisture intrusion into the control head also corrodes the sensitive copper contacts. Manual harvest testing helps determine if the internal motor is truly dead. Replacing the unit is far more practical than rebuilding the tiny gearbox.
Strange Noises During Operation
Loud grinding sounds indicate that the ejector fingers are struggling to move. This usually happens when the mold heater fails to detach the frozen cubes. The motor strains heavily against the solid ice block, causing loud clicking. Ignoring these mechanical sounds will eventually strip the plastic internal gears completely. Addressing the noise early prevents a total catastrophic mechanical breakdown.
Buzzing noises typically point to a failing rear water inlet solenoid valve. When the valve struggles to open, the internal electromagnetic coils vibrate aggressively. This loud buzzing lasts for several seconds during the standard fill cycle. Replacing the faulty inlet valve restores quiet operation to the kitchen environment. Consistent humming from the freezer always warrants a thorough mechanical inspection.
Preparing for the Upgrade Project
Proper preparation is the secret to a flawless DIY appliance installation. Gathering the correct tools beforehand ensures absolute safety and project efficiency. Taking a few extra minutes to prep prevents costly accidental kitchen damage. You should clear out the freezer compartment entirely before starting the work. This creates a highly clean workspace for mounting the new heavy hardware.
Essential Tools and Hardware
You do not need a specialized professional toolkit to complete this upgrade. A quarter-inch nut driver and Phillips screwdriver are usually entirely sufficient here. You should have a small wrench for tightening external water line connections. Keep a clean towel and bucket nearby to catch any residual plumbing drips. Having a bright flashlight helps when working inside the dark freezer.
Organizing your screws and small parts prevents frustrating delays during the installation. Use a magnetic parts tray to hold the tiny quarter-inch mounting bolts securely. Inspect the new kit thoroughly to ensure no parts are missing from packaging. Reviewing the manufacturer instruction manual clarifies the exact required fastener locations. Preparation keeps the entire workflow completely smooth and highly organized.
Electrical Safety and Disconnection
Always prioritize safety before opening any appliance internal electrical access panels. Unplug the refrigerator directly from the wall to eliminate all live power. If inaccessible, you may need to replace load center fuses temporarily during work. Turning off the main kitchen circuit breaker is another highly safe alternative. Verifying interior lights are off confirms power is completely disconnected.
Never attempt to force electrical plugs into mismatched wiring harness receptacles. The modular plugs are distinctly keyed to fit only in one specific direction. Working with wet hands near appliance wiring invites severe shock hazards unnecessarily. Allow any internal condensation to dry completely before connecting the new cables. Strict adherence to safety protocols prevents dangerous electrical shorts and sparks.
Managing the Water Supply Line
Turn off the plumbing valve located directly behind the refrigerator unit. Disconnect the existing line and drain leftover water into your catch bucket. Like deciding to run a washing machine with just cold water, fridges need cold supply. Inspect the copper or PEX tubing for kinks and extreme physical wear. Replace the tubing entirely if you notice any severe surface degradation.
Using a braided stainless steel water line offers superior leak protection indoors. Avoid using cheap plastic tubing that easily becomes brittle over several years. Ensure the compression fittings are seated perfectly straight before tightening them down. Do not overtighten the brass nuts, as this easily crushes the internal ferrules. Checking for micro-leaks early prevents gradual structural water damage over time.
Organizing the Freezer Space
Transfer all your frozen food items into a temporary heavy insulated cooler. This keeps groceries perfectly safe while you work with the doors open. Remove the existing wire or glass shelves to maximize your physical working room. Wiping down the interior walls now provides a clean sanitary mounting surface. A clean environment prevents lingering food debris from contaminating the fresh ice.
Take this opportunity to inspect the freezer door gasket for tight sealing. A torn gasket allows warm humid air to enter the cold compartment constantly. This excess humidity causes rapid frost buildup directly on the new unit. Clean the rubber seals with warm soapy water to restore their natural grip. Maintaining a tight seal is vital for optimal appliance cooling efficiency.
Step-by-Step Installation Instructions
Installing your new assembly is a highly manageable weekend DIY home task. The EZ Connect system minimizes complex wiring and custom internal structural modifications. Carefully follow these exact steps to secure the unit properly and safely. Rushing the process can easily lead to alignment issues and slow leaks. Take your time to ensure every single screw is seated perfectly straight.
Removing Covers and Exposing Wiring
Start by opening the freezer and locating the blank plastic side covers. Use a flathead screwdriver to pry off these small protective plastic tabs. This action exposes the threaded mounting holes and the main connection plug. Be extremely careful not to scratch the interior liner while removing them. If replacing an old unit, unscrew and disconnect its wire harness first.
Store the blank cover plates safely in case you ever remove the kit. Inspect the exposed wiring receptacle for any obvious signs of dark scorching. Clean away any built-up frost from the mounting holes using a dry cloth. The pre-drilled holes align perfectly with the metal brackets on the kit. Having a clear view of the mounting points makes the lifting step easier.
Mounting the Ice Maker Unit
Attach the wiring plug from the new kit into the wall receptacle. Push it firmly until the plastic locking tab clicks completely and securely. Lift the heavy unit and align its brackets with the exposed freezer holes. Insert the provided quarter-inch screws and tighten them carefully without stripping threads. Ensure the unit sits completely level for perfectly even water distribution.
Supporting the weight of the unit while driving screws can be slightly tricky. You may want a helper to hold the assembly steady during this precise step. Check that the wiring harness routes cleanly without being pinched behind the bracket. A pinched wire will inevitably short out against the cold metal chassis frame. Securely mounted units operate much quieter during the aggressive harvest ejection cycles.
Installing the Fill Tube and Bin
Slide the fill tube extender straight through the back freezer wall opening. It must sit directly above the machine’s small plastic water receiving cup. Place the new storage bin directly below the unit on the wire shelf. Lower the metal wire bail arm into the downward active operational position. The system will cycle once the freezer reaches optimal freezing sub-zero temperatures.
Double-check the alignment between the fill tube and the receiving cup closely. Even a slight misalignment causes water to splash directly onto the frozen food. Verify that the storage bin does not interfere with the freezer door closing. The bail arm must have completely unobstructed movement to sense ice levels accurately. Proper physical alignment is the key to entirely spill-free automated operation.
Handling Modern Refrigerant Systems
Modern appliances utilize highly efficient but extremely flammable R600a isobutane chemical refrigerants. Genuine replacement kits feature specialized spark-proof switches for completely safe daily operation. When working near the back panel, be extremely cautious around exposed compressor coils. If you accidentally cut freon line parts, you risk releasing highly dangerous flammable gas. Always use OEM-approved spark-proof kits for absolute household fire safety compliance.
Never use open flames or heat guns near modern R600a cooling system components. If you smell a distinct sweet chemical odor, ventilate the kitchen area immediately. Proper handling of these appliances requires strict adherence to updated safety guidelines always. Using incompatible older electrical parts can trigger an internal arc and flash fire. Safety must remain the highest priority during any modern appliance component swap.
Maintenance and Performance Optimization
Regular maintenance guarantees a remarkably long lifespan for your new hardware parts. Proactive cleaning habits keep the frozen cubes tasting incredibly fresh every single day. Small mechanical adjustments keep the internal motorized machinery operating highly smoothly. Neglecting basic upkeep often leads to completely premature structural component failures. Here is how to easily maintain peak freezer performance all year round.
Sanitizing the Storage Bin
The plastic ice bin should be removed and completely washed periodically every month. Stagnant old ice absorbs strong lingering food odors from the sealed freezer environment. Dump out any clumped blocks and wash the bin with warm dish soap. Dry the plastic completely before sliding it back into its dedicated shelf place. Leftover moisture can easily freeze and cause newly harvested ice to stick.
Never use harsh abrasive chemicals like bleach to clean the food-grade plastic bin. Mild unscented soap is perfectly sufficient for removing basic sticky frost residue. Allow the bin to air dry upside down on a clean kitchen towel completely. A completely clean storage bucket ensures your cold drinks taste perfectly crisp always. Maintaining sanitation is vital for overall household health and excellent beverage quality.
Replacing the Water Filter
Your refrigerator filter heavily defends against local mineral scale and plumbing sediment. Manufacturers strongly recommend replacing this carbon cartridge every six months without fail. A clogged filter severely restricts flow and physically strains the rear inlet valve. Keep a spare filter ready so you can swap it out instantly anytime. Premium water filtration guarantees crystal-clear ice cubes for your cold refreshing beverages.
Ignoring filter replacements frequently voids certain aspects of your extended appliance warranty. Heavily scaled water leaves white chalky residue directly inside your favorite drinking glasses. It also coats the internal ice mold with stubborn hard mineral calcium deposits. Writing the replacement date on the filter casing helps track your maintenance schedule. Clean water is the fundamental secret to flawlessly functioning automated ice machines.
Leveling the Refrigerator
Many homeowners completely overlook the vital importance of exact appliance surface leveling. If the fridge leans, water inside the top mold will pool highly unevenly. This creates malformed frozen cubes that jam the ejector fingers eventually and permanently. Place a standard bubble level on the top hinge to check its exact stance. Adjust the front bottom leveling legs until the appliance sits perfectly plumb.
A properly leveled refrigerator also ensures the heavy doors close and seal automatically. This preserves the delicate internal cold temperature and significantly reduces energy consumption costs. Check the level across both the exact width and depth of the outer cabinet. Use a small wrench to turn the threaded leveling feet clockwise or counterclockwise precisely. This simple mechanical adjustment drastically improves the overall reliability of the system.
Adjusting the Freezer Temperature
Ice makers require a specific cold environment to function properly and harvest consistently. The ideal freezer temperature is precisely zero degrees Fahrenheit for optimal rapid freezing. If the freezer is too warm, the internal thermostat will strongly delay the cycle. Verify the internal ambient temperature using an independent reliable digital freezer thermometer probe. Adjust the main appliance control panel settings to achieve the perfectly required coldness.
Keep the freezer moderately stocked with frozen food to help stabilize the air temperature. An empty freezer actually struggles to maintain extreme cold during rapid door opening cycles. Ensure the interior air vents remain completely unblocked by large bulky food packages. Proper cold air circulation is absolutely mandatory for freezing the mold water quickly. Dialing in the perfect temperature guarantees a high daily output of fresh ice cubes.
Compatibility and Replacement Parts Reference
Selecting exact matching components prevents highly frustrating installation delays and manual modifications entirely. Verifying specific part numbers saves precious time and completely eliminates annoying return shipping. Always meticulously cross-reference your specific appliance model before buying costly replacement items. Small structural design changes occur frequently between different sequential manufacturing production years. The reference details below help ensure a perfectly seamless electronic part replacement.
Cross-Checking Your Model Number
The exact identification tag is usually located inside the fresh food compartment wall. Jot down the full alphanumeric model and serial number before ordering any parts. The popular W11700559 kit frequently replaces much older iterations for this specific series. Using the totally wrong kit results in dangerously mismatched wiring plug connections immediately. Check online interactive appliance diagrams to absolutely confirm exact OEM hardware requirements.
Pay close attention to the final two digits of your specific model number. These trailing digits indicate minor engineering revisions made during the factory production run. A part that fits revision zero might not fit revision two exactly right. Appliance parts retailers provide compatibility search tools to verify these precise engineering matches. Taking five minutes to verify compatibility saves hours of frustrating DIY installation struggles.
Decoding OEM vs Aftermarket Kits
You will frequently encounter Original Equipment Manufacturer parts and cheaper aftermarket brand alternatives. OEM kits are engineered specifically for your exact appliance model by the original creator. They consistently ensure perfect wiring compatibility and highly optimal water pressure handling metrics. Aftermarket kits might save initial money but frequently suffer highly premature mechanical failures. Investing in genuine factory parts strictly protects your valuable appliance structural warranty.
Generic aftermarket components often use inferior thin plastics and much weaker internal motors. This leads to cracked molds and stripped gears within the first operational year. OEM parts undergo rigorous quality control testing to survive extreme cold environment conditions. Authentic kits also include the crucial spark-proof micro-switches necessary for modern R600a systems. Quality parts always provide superior peace of mind and long-term functional reliability.
Navigating Warranty and Returns
Carefully review the online vendor return policy before installing any new electronic parts. Reputable major appliance dealers offer a thirty-day window for entirely uninstalled pristine items. If the kit arrives structurally damaged, a solid warranty covers complete replacement costs. Keep all original cardboard packaging until you verify the machine works perfectly well. Documenting the unboxing installation with photos helps if warranty claims are eventually needed.
Electrical parts are notoriously difficult to return once they have been plugged in fully. Vendors strictly test returned items to see if they were shorted during botched installations. Following standard safety procedures ensures you do not accidentally damage the brand new components. Keep your digital purchase receipt easily accessible in your email for future warranty reference. A strong manufacturer warranty is the true hallmark of a high-quality reliable replacement part.
Troubleshooting Initial Startup
Do not panic if the machine does not instantly dump ice upon initial installation. The freezer requires up to twenty-four hours to reach the optimal zero degree threshold. The initial harvest cycle will automatically begin only after the mold is completely frozen. Discard the first three full batches of ice to completely flush the internal plumbing. This removes any manufacturing dust or minor sediment from the newly installed water lines.
If no ice forms after two days, systematically double-check your initial plumbing connections. Verify that the rear saddle valve is fully open and supplying active cold water. Check that the interior bail arm is securely locked in the lowest operational position. Listen closely for the faint click of the internal timer motor slowly advancing gears. Patience and methodical observation resolve almost all initial appliance startup issues easily.
Component Reference Guide
| Component Name | Function in System | Common Maintenance Issue |
|---|---|---|
| Ice Maker Assembly | Freezes and ejects ice cubes automatically | Burnt motor or faulty internal thermostat |
| Water Inlet Valve | Opens to supply water to the fill tube | Mineral clogs or electrical solenoid failure |
| Wire Bail Arm | Senses ice level to pause production | Gets stuck in the downward position by frozen items |
| Fill Tube | Directs water from valve into the mold | Freezes solid due to extremely slow water dripping |
| Jumper Harness | Connects appliance power to the unit | Corroded or physically bent metal connector pins |