Whirlpool WRT318FMDB02

Refrigerator · 11 documented failures, each with the part, the price, the video and the manual page.

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Owner's manual: Whirlpool's official Owner Center supports the WRT318FMDB refrigerator family; the stored repair model is the 02 revision.

What is it doing?

Documented failures

Ice maker

Usually DIY Vendor replaces this part if the refrigerator is not making ice

DIY. Call someone if the fill valve or water line inside the cabinet is involved.

Try this first — it costs nothing. Check the ice maker is switched on and the water supply is open - the manual's first two causes need no parts.

Check, in this order

  1. Give it the manual's 12 hours after any install or reset before judging it.
  2. Confirm the freezer is below 0 F - the manual lists a warm freezer as a cause of no ice.
  3. Check the dispenser lock is off, the ice maker is switched on, and the water line stop cock is open.
  4. Hollow or small cubes point at the water filter or supply rather than the ice maker.

Before you open anything

Tools

The repair, in order

  1. Give it the manual's 12 hours after any install or reset before calling it faulty.
  2. Confirm the freezer is below 0 F - the manual lists a warm freezer as a cause of no ice.
  3. Check the water line and stop cock, and that the dispenser lock is off.
  4. If ice is hollow or small, replace the water filter before the ice maker.
  5. Photograph the harness, unclip the assembly, fit the replacement.

How you know it worked. A full harvest within 24 hours, cubes solid rather than hollow.

Filmed on this exact machine
Whirlpool Matrix Refrigerator Ice Maker Replacement 4317943RepairClinic.com · 2:11

PartTypeListingPricePrice checked
4317943OEMWhirlpool 4317943 Refrigerator Ice Maker Assembly$92.429 Aug 2026Buy
4317943AftermarketCoreCentric Remanufactured Refrigerator Ice-Maker Replacement for Whir$41.959 Aug 2026Buy
WPW10601149OEMWPW10601149 Fitting W10601149 Replacement for Whirlpool OEM$37.239 Aug 2026Buy
WPW10601149AftermarketW10601149 for Whirlpool Maytag Ikea WPW10601149 Water Tube Fitting$15.959 Aug 2026Buy
WPW10715709OEMW10715709 Refrigerator Icemaker WPW10715709 W10365048 Replacement for $159.999 Aug 2026Buy
WPW10715709AftermarketChoice Part W10715709 Refrigerator Icemaker Kit for Whirlpool WPW10715$79.079 Aug 2026Buy
Prices are a snapshot taken on the date shown and are not monitored. Check the retailer before buying.

Worth fixing? Weigh it - this part is a meaningful share of a new machine. Part $15.95–$159.99 against $499.99 for a new machine (32.0%).Part cost only. A service call adds a regional diagnostic fee plus labour.

Temperature sensor

Usually DIY Vendor replaces this part if the freezer is not cooling properly

DIY once measured. If the reading is correct but cooling is wrong, the fault is elsewhere.

Try this first — it costs nothing. Check the set temperature has not been changed, and that Energy Saver mode is off - both are manual-listed causes.

Check, in this order

  1. Leave a thermometer inside for a few hours and compare against the display.
  2. Test the thermistor's resistance against the service value before replacing.

Before you open anything

Tools

The repair, in order

  1. Compare the displayed temperature against a thermometer left inside for a few hours.
  2. Locate the thermistor in the affected compartment.
  3. Test resistance against the service value before replacing.
  4. Swap the sensor, reconnect, and let the fridge run 24 hours before judging.

How you know it worked. Displayed and measured temperature agree, and cooling cycles normally.

Filmed on this exact machine
Whirlpool Matrix Refrigerator Freezer Thermistor Replacement WPW10384183RepairClinic.com · 5:05

PartTypeListingPricePrice checked
W10838965OEMOEM W11438736 Refrigerator Thermistor Compatible with Amana Maytag Whi$15.999 Aug 2026Buy
W10838965AftermarketSupplying Demand W10838965 W11438736 Refrigerator Temperature Sensor T$20.669 Aug 2026Buy
WPW10384183OEM2 PCS OEM WPW10384183 W10384183 Refrigerator Thermistor Compatible wit$7.999 Aug 2026Buy
WPW10384183AftermarketWPW10384183 W10384183 Refrigerator Thermistor - Replacement Parts Comp$7.999 Aug 2026Buy
Prices are a snapshot taken on the date shown and are not monitored. Check the retailer before buying.

Worth fixing? Repair - the part is a small fraction of a new machine. Part $7.99–$20.66 against $499.99 for a new machine (4.1%).Part cost only. A service call adds a regional diagnostic fee plus labour.

Defrost heater

Usually DIY Vendor replaces this part if the evaporator coils are freezing over

DIY, but slow - it needs a full thaw first. Call someone if ice returns within a week of a correct repair.

Try this first — it costs nothing. Thaw it fully and clear the defrost drain - a blocked drain refreezes and imitates a dead heater.

Check, in this order

  1. Look for a sheet of ice on the freezer's rear evaporator panel - that is the signature.
  2. Check whether the defrost drain is blocked while everything is thawed.
  3. Test the heater element for continuity before buying one.

Before you open anything

Tools

The repair, in order

  1. Empty the freezer and remove the rear panel.
  2. If the evaporator is encased in ice, thaw it fully first (a hair dryer on low, or 24 hours unplugged with doors open).
  3. Check the defrost drain is clear while everything is thawed - a blocked drain refreezes and mimics this fault.
  4. Test the heater element for continuity before replacing it.
  5. Fit the replacement, refit the panel, restock.

How you know it worked. No ice sheet returns on the evaporator over the following week and the fridge holds temperature.

Filmed on this exact machine
Whirlpool Matrix Refrigerator Defrost Heater Replacement WPW10316428RepairClinic.com · 7:18

PartTypeListingPricePrice checked
WPW10316428OEMWhirlpool WPW10316428 Defrost Heater Assembly, NULL$115.419 Aug 2026Buy
WPW10316428AftermarketW10316428 Refrigerator Defrost Heater Element for Whirlpool WPW1031642$73.079 Aug 2026Buy
Prices are a snapshot taken on the date shown and are not monitored. Check the retailer before buying.

Worth fixing? Weigh it - this part is a meaningful share of a new machine. Part $73.07–$115.41 against $499.99 for a new machine (23.1%).Part cost only. A service call adds a regional diagnostic fee plus labour.

Start relay

Usually DIY Vendor replaces this part if it the refrigerator will not work at all

The start relay itself is a genuinely owner-replaceable part - it clips on and off the outside of the compressor. The compressor and its sealed refrigerant system are different: never open refrigerant lines or attempt to recharge the system yourself - that requires EPA Section 608 certification. If a new relay doesn't bring the compressor to life, the compressor itself or the sealed system is the next suspect, and that's a certified technician's job.

Try this first — it costs nothing. There's no free fix for a failed start relay - it's a low-cost, clip-on part, but it does need replacing, not repairing.

Check, in this order

  1. Listen for a repeated clicking sound near the compressor every few minutes - that's the classic start-relay symptom, the compressor trying and failing to start.
  2. Confirm the fridge is actually receiving power (outlet, cord, breaker) before suspecting the relay.
  3. Pull the relay off the compressor terminals and shake it gently - a rattle can indicate a failed relay, though this isn't conclusive on its own.

Before you open anything

Tools

The repair, in order

  1. Unclip the compressor terminal cover and locate the relay/overload assembly clipped to the compressor's side terminals.
  2. Photograph the wiring before removing anything.
  3. Pull the relay off the terminals and test it with the multimeter's continuity function between its terminals.
  4. Fit the replacement relay onto the compressor terminals in the same orientation, and refit the terminal cover.

How you know it worked. The compressor starts and runs without clicking, and the fridge pulls down to temperature over the following hours.

Filmed on this exact machine
Whirlpool Matrix Refrigerator Start Relay Replacement W11092533RepairClinic.com · 2:55

PartTypeListingPricePrice checked
W11092533OEMupmbzie Refrigerator Compressor Start Relay W11092533 W10798748 Genuin$51.999 Aug 2026Buy
W11092533AftermarketW11092533 Refrigerator Compressor Start Relay Compatible with Whirlpoo$54.009 Aug 2026Buy
Prices are a snapshot taken on the date shown and are not monitored. Check the retailer before buying.

Worth fixing? Repair - the part is a small fraction of a new machine. Part $51.99–$54.00 against $499.99 for a new machine (10.8%).Part cost only. A service call adds a regional diagnostic fee plus labour.

Evaporator fan

Usually DIY Vendor replaces this part if the refrigerator is noisy

DIY. If the blade was locked in ice, fix the defrost system instead - swapping the fan will not hold.

Try this first — it costs nothing. Check nothing is blocking the vents - the manual lists blocked vents before any part.

Check, in this order

  1. Note the split: freezer cold but fridge warm is the classic evaporator-fan pattern.
  2. Hold the freezer door switch in - the fan should run; silence with the switch held is the tell.
  3. Remove the freezer rear panel and check the blade is not locked in ice; if it is, the defrost system is the real fault.

Before you open anything

Tools

The repair, in order

  1. Open the freezer and listen: this fan normally stops when the door opens, so press the door switch to keep it running.
  2. Remove the freezer rear panel to expose the evaporator and fan.
  3. Check for an ice sheet locking the blade - if present the problem is the defrost system, not the fan.
  4. Photograph the connector, swap the fan, refit the panel.

How you know it worked. Fridge compartment returns to temperature and the fan is audible with the door switch held in.

Filmed on this exact machine
Whirlpool Matrix Refrigerator Evaporator Fan Motor Replacement WP2315539RepairClinic.com · 6:40

PartTypeListingPricePrice checked
WP2163777OEMWhirlpool WP2163777 OEM Top Freezer Refrigerator Evaporator Fan Blade,$33.709 Aug 2026Buy
WP2163777AftermarketCompatible with Whirlpool WP2163777 Refrigerator Blade Evap. Fan 21637$38.279 Aug 2026Buy
WP2315539Aftermarket2315539 Refrigerator Evaporator Fan Motor WP2315539 Ultra Quiet Fit fo$16.279 Aug 2026Buy
Prices are a snapshot taken on the date shown and are not monitored. Check the retailer before buying.

Worth fixing? Repair - the part is a small fraction of a new machine. Part $16.27–$38.27 against $499.99 for a new machine (7.7%).Part cost only. A service call adds a regional diagnostic fee plus labour.

Control board

Usually DIY Vendor replaces this part if the refrigerator will not cool at all

Get a technician to confirm before buying a board. It is the most expensive part here and the most commonly misdiagnosed.

Try this first — it costs nothing. Power-cycle the fridge at the wall for five minutes before assuming a board fault.

Check, in this order

  1. Rule out fans, sensor, damper and door switch first - the board is the expensive part they all get blamed for.
  2. Inspect the board for scorching or swollen capacitors.

Before you open anything

Tools

The repair, in order

  1. Rule out the cheaper causes first - fans, sensor, damper, door switch.
  2. Inspect the board for scorching or swollen capacitors.
  3. Transfer connectors one at a time against your photographs.

How you know it worked. Normal cooling and display behaviour over 24 hours.

Filmed on this exact machine
Whirlpool Matrix Refrigerator Control Board Replacement WPW10643378RepairClinic.com · 2:08

PartTypeListingPricePrice checked
WPW10643378OEMWPW10643378 Refrigerator Electronic Control Board Replacement for Whir$336.009 Aug 2026Buy
WPW10643378AftermarketCoreCentric Remanufactured Refrigerator Control Board Replacement for $83.109 Aug 2026Buy
Prices are a snapshot taken on the date shown and are not monitored. Check the retailer before buying.

Worth fixing? Weigh it - this part is a meaningful share of a new machine. Part $83.10–$336.00 against $499.99 for a new machine (67.2%).Part cost only. A service call adds a regional diagnostic fee plus labour.

Door switch

Usually DIY Vendor replaces this part if the light is not working properly

DIY.

Try this first — it costs nothing. Clean around the switch - sticky residue holds it in and the fridge thinks the door is open.

Check, in this order

  1. Press the switch by hand and watch the interior light.
  2. Test continuity in both positions.

Before you open anything

Tools

The repair, in order

  1. Press the switch by hand and watch the interior light.
  2. Prise the switch out carefully - the bezel marks easily.
  3. Test continuity in both positions before replacing.

How you know it worked. Light and evaporator fan respond correctly as the door opens and closes.

Filmed on this exact machine
Whirlpool Matrix Refrigerator Door Switch Replacement WP1118894RepairClinic.com · 1:10

PartTypeListingPricePrice checked
WP1118894AftermarketBEAR FLAG EDITION for Whirlpool W11384469 Door Switch WP1118894 W10656$4.379 Aug 2026Buy
Prices are a snapshot taken on the date shown and are not monitored. Check the retailer before buying.

Worth fixing? Repair - the part is a small fraction of a new machine. Part $4.37 against $499.99 for a new machine (0.9%).Part cost only. A service call adds a regional diagnostic fee plus labour.

Condenser fan

Usually DIY Vendor replaces this part if the refrigerator is noisy

DIY. Escalate if the fan is fine and both compartments are still warm, which points at the sealed system - that is a licensed job.

Try this first — it costs nothing. Vacuum the condenser coils - a clogged coil produces the same warm-fridge symptom and costs nothing.

Check, in this order

  1. Pull the fridge out and feel the condenser coils - if they are furred with dust, clean them first and give it 24 hours.
  2. With the compressor running, look at the fan: not spinning, or spinning and rattling, points here.
  3. Spin the blade by hand with the power off; a seized or gritty bearing confirms it.

Before you open anything

Tools

The repair, in order

  1. Pull the fridge out and remove the lower rear access panel.
  2. Vacuum the condenser coils first - a clogged coil causes the same warm-fridge symptom and costs nothing to fix.
  3. Spin the fan blade by hand: seized or noisy means replace; free and quiet means look elsewhere.
  4. Photograph the wiring, unclip the fan assembly, fit the replacement.
  5. Leave the panel off and confirm the fan runs when the compressor starts.

How you know it worked. Fan runs whenever the compressor runs, and both compartments pull down to temperature over 24 hours.

Filmed on this exact machine
Whirlpool Matrix Refrigerator Condenser Fan Motor Replacement W11127829RepairClinic.com · 3:06

PartTypeListingPricePrice checked
W11127829OEMGSPUSA W11127829 CKD127829X compatible with Kenmore/Sears Whirlpool Re$129.149 Aug 2026Buy
W11127829AftermarketHoypeyfiy W11127829 Refrigerator Condenser Fan Motor Replacement for W$23.999 Aug 2026Buy
W11193484OEMWhirlpool W11193484 Genuine OEM Refrigerator Condenser Fan Motor Blade$44.499 Aug 2026Buy
W11193484AftermarketClimaTek Fridge Fan Blade Replaces Roper W11193484$19.999 Aug 2026Buy
Prices are a snapshot taken on the date shown and are not monitored. Check the retailer before buying.

Worth fixing? Weigh it - this part is a meaningful share of a new machine. Part $19.99–$129.14 against $499.99 for a new machine (25.8%).Part cost only. A service call adds a regional diagnostic fee plus labour.

Door seal

Usually DIY Vendor replaces this part if it is damaged or missing

DIY.

Try this first — it costs nothing. Clean the gasket - the manual lists a dirty gasket as a frost cause, and a warmed, reshaped gasket often seals again.

Check, in this order

  1. Do the paper test: close a sheet of paper in the door and pull - it should drag on all four sides.
  2. Look for frost or condensation forming near the door edge, which the manual attributes to a door not closing properly.
  3. Check the gasket for tears, and for food or a drawer holding the door open.

Before you open anything

Tools

The repair, in order

  1. Clean the gasket first - the manual lists a dirty gasket as a frost cause.
  2. Do the paper test: close a sheet of paper in the door and pull; it should drag.
  3. Warm a deformed gasket gently with a hair dryer and reshape before buying one.
  4. If torn, peel the old gasket from its channel and press the new one in from the corners out.

How you know it worked. Paper test drags on all four sides and frost does not return at the door edge.

Filmed on this exact machine
Whirlpool Matrix Refrigerator Freezer Door Gasket Replacement W11229610RepairClinic.com · 1:14

PartTypeListingPricePrice checked
W11229610OEMWhirlpool W11229610 Genuine OEM Refrigerator Door Gasket Replacement P$140.019 Aug 2026Buy
W11229610AftermarketFor Whirlpool W11229610 Refrigerator Freezer Door Seal Gasket Replacem$89.999 Aug 2026Buy
W11240749OEMW11240749 Refrigerator Door Gasket Replacement for Whirlpool Genuine O$172.459 Aug 2026Buy
W11240749AftermarketYesParts W11240749 Durable Refrigerator Gasket-Dor$136.899 Aug 2026Buy
Prices are a snapshot taken on the date shown and are not monitored. Check the retailer before buying.

Worth fixing? Weigh it - this part is a meaningful share of a new machine. Part $89.99–$172.45 against $499.99 for a new machine (34.5%).Part cost only. A service call adds a regional diagnostic fee plus labour.

Water line

Usually DIY Vendor replaces this part if the refrigerator is leaking

This is a straightforward owner repair; if the leak is at the household shutoff valve itself rather than the fridge's line, that fitting may be worth a plumber's attention.

Try this first — it costs nothing. A kinked or frozen line costs nothing to fix - straighten it and reroute it away from the cold rear panel, or thaw it, before assuming the line itself needs replacing.

Check, in this order

  1. Trace the line from the shutoff to the inlet valve for a kink, especially where the fridge was last pushed back against the wall.
  2. Feel along the line where it runs behind the fridge for an ice blockage - a line resting against the rear panel can freeze.
  3. Look for a slow drip or mineral crust at any compression fitting.

Before you open anything

Tools

The repair, in order

  1. Pull the fridge out and trace the water line from the shutoff valve to the water inlet valve.
  2. Straighten any kink and reroute the line away from the rear panel if it was resting against it.
  3. If frozen, thaw gently (room-temperature air, or a hair dryer on low held well back) rather than forcing it.
  4. If the line is split, cracked, or its fitting won't seal after reseating, cut back to sound tubing and fit new line with matching compression fittings.

How you know it worked. Full water flow reaches the ice maker or dispenser within a normal cycle, and no drips appear at any fitting after an hour.

Filmed on this exact machine
Whirlpool Matrix Refrigerator Water Line Replacement W10823511RepairClinic.com · 3:00

PartTypeListingPricePrice checked
W10823511OEMW10823511 Genuine Refrigerator Water Tube fit for Whirlpool$27.459 Aug 2026Buy
W10823511AftermarketRefrigerator Part - W10823511$20.929 Aug 2026Buy
Prices are a snapshot taken on the date shown and are not monitored. Check the retailer before buying.

Worth fixing? Repair - the part is a small fraction of a new machine. Part $20.92–$27.45 against $499.99 for a new machine (5.5%).Part cost only. A service call adds a regional diagnostic fee plus labour.

Water inlet valve

Usually DIY Vendor replaces this part if the refrigerator is not receiving water

The valve itself is a straightforward owner swap; if water is leaking from the household shutoff or supply line under pressure, that plumbing connection may be worth a plumber's attention.

Try this first — it costs nothing. There's no free fix once the valve solenoid itself has failed - a kinked line or closed shutoff costs nothing to correct, but a bad solenoid needs the part.

Check, in this order

  1. Confirm the shutoff valve behind or under the fridge is fully open - a partly closed valve mimics a failed inlet valve.
  2. Check the supply line for a kink or freeze point before assuming the valve itself has failed.
  3. Listen for the valve buzzing when the dispenser or ice maker calls for water - silence points to the valve or its wiring, buzzing with no flow points downstream.

Before you open anything

Tools

The repair, in order

  1. Locate the water inlet valve, usually behind the lower rear access panel or under the unit.
  2. Photograph the wiring harness and water-line connections before disconnecting anything.
  3. Test the valve's solenoid coils for continuity with the multimeter.
  4. Disconnect the water lines and harness, replace the valve, and reconnect using the photos as a reference.
  5. Turn the water supply back on and check every fitting for drips before pushing the fridge back.

How you know it worked. Water dispenses and the ice maker fills on the next cycle, with no drips at any reconnected fitting.

Filmed on this exact machine
Whirlpool Matrix Refrigerator Water Inlet Valve Replacement WPW10279909RepairClinic.com · 3:25

PartTypeListingPricePrice checked
WPW10279909OEMWhirlpool WPW10279909 Refrigerator Parts Valve-Inlet$68.729 Aug 2026Buy
WPW10279909AftermarketW10279909 Refrigerator Water Inlet Solenoid Valve Replacement Replace $23.669 Aug 2026Buy
Prices are a snapshot taken on the date shown and are not monitored. Check the retailer before buying.

Worth fixing? Repair - the part is a small fraction of a new machine. Part $23.66–$68.72 against $499.99 for a new machine (13.7%).Part cost only. A service call adds a regional diagnostic fee plus labour.

If you replace it instead

Configuration-matched to this machine (top-freezer, ~18.2 cu ft). Prices are UPC-verified Amazon listings, not estimates. Like-for-like replacement rarely pays for itself on energy alone — replace for fit and features, or because the repair maths above says so.

ModelCapacityEnergy costPricePrice checked
Midea MRT18D3***18.1 cu ft$69.48/yr$499.9919 Jul 2026See it
A candidate must match this machine's configuration (style, fuel and defrost class) before price or efficiency is considered. Prices are a snapshot from the date shown; availability is not monitored — check the retailer before buying.
Or see the whole class

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