Your refrigerator’s evaporator fan motor is a critical component that circulates cold air from the freezer to the fridge compartment. If it fails, food can spoil in hours from lack of cooling. Thankfully, replacing this part is a straightforward DIY project.
This guide covers:
- How the evaporator fan works
- Signs of evaporator fan failure
- Sourcing replacement parts
- Step-by-step instructions to swap out the motor
- Helpful pointers for first-time DIY repair
Learn to replace a faulty evaporator fan in under an hour and save the cost of a service call!
Understanding the Evaporator Fan
The evaporator fan and cover assembly sit at the back top of fridge’s interior. This system works alongside the compressor to cool food. Here’s a quick overview:
- Refrigerant absorbs heat
- Inside the evaporator coils in the freezer, pulling warmth from air
- The now-cold air is blown via the evaporator fan through vents down to the fridge
- A thermistor continually monitors temps, signaling the compressor when to run
If the evaporator fan motor fails, air won’t effectively circulate throughout the compartment. Food will spoil if left unresolved.
Common Evaporator Fan Failure Symptoms:
- Fridge temp becomes too warm
- Freezer over-freezes items
- Louder buzzing noise from back of unit
- Fan blades don’t spin or spin slower
- Frost build-up around vents
Catching problems early prevents having to toss all your groceries!
Step-by-Step Instructions for Evaporator Fan Replacement
Follow these sequential steps to remove your fridge’s old, non-working evaporator fan motor and install the new replacement part.
1. Power Off and Prep
Safely disabling power and removing food are crucial first steps.
- Transfer all frozen items from the freezer to insulated cooler bags or temporarily move to a neighbor’s fridge. Leaving the freezer door open allows the compartment to match room temp.
- Remove all freezer shelving and bins. This provides unobstructed access to the back panel once covers are off.
- Disconnect refrigerator power by unplugging cord from outlet.
With food safe and power disengaged, prep can begin without risk of electric shock or frostbite dangers.
2. Freezer Shelf Removal
Accessing the evaporator fan requires taking out the rear freezer shelf:
- Locate plastic shelf support spacer near the shelf’s left side and remove it. This releases the shelf from its tracks.
- Shift entire shelf left to detach the right-side shelf clips from their mounting holes in the rear freezer wall.
- With the shelf freed from holes on one side and the tracks below, lift shelf up at an angle and completely withdraw it from the freezer.
- Set aside freezer shelf in a protected area to reinstall later.
3. Evaporator Cover Removal
Now with the freezer shelf taken out, you can access and take off the metal evaporator cover shielding the fan motor assembly:
- Use a Phillips screwdriver to unscrew the 4-6 evaporator cover mounting screws securing it to the freezer rear wall. Caution – it may be stiff when stuck to foam insulation.
- Once loosened, carefully pivot the top of the cover down. There is still one wire harness attached at this point.
- Gently pull evaporator cover away while disconnecting the evaporator fan wire harness. Make sure to grasp the plastic connector, not the wires themselves.
- Fully slide out the evaporator cover to the left to reveal two additional wire bundle connectors at the rear for the ice maker and ground wires. Again, pull connectors, not wires.
- With all connectors detached, fully remove evaporator cover. Place it out of the work area in a protected spot to prevent scratches.
4. Evaporator Fan Cover Detachment
The final protective panel before the fan motor is the plastic evaporator fan cover mounted to the freezer’s rear wall:
- Locate the two small metal locking rings inserted horizontally at the top edge of the fan cover. Use pliers to carefully extract the rings from the tabs which secure the cover.
- Once rings are out, notice the four plastic locking tabs protruding from the cover edges. Lift up and disengage each of the four tabs by gently prying them away from the slots cut in the freezer wall.
- With all tabs unlocked, the rectangular fan cover can be easily detached completely from the wall.
5. Evaporator Fan Motor Removal
With all covers out of the way, you now have access to detach the non-functioning evaporator fan motor assembly:
- Locate the fan blade mounted on the motor shaft extending from the bracket. While holding the motor securely, use pliers to detach the fan blade from shaft by twisting the blade gently.
- Examine how the plastic motor bracket mounts into the cutout space in the freezer wall. Notice the layered locking tabs on one side of the metal bracket.
- Using your hand, fingers, or a flathead screwdriver, lift up the bracket, locking tabs one side at a time to disengage and loosen the motor mount while twisting the plastic bracket counter-clockwise.
- Once fully unlocked, withdraw motor bracket from wall cutout, then disconnect fan motor from mount to fully remove it.
6. Installing New Evaporator Fan Motor
With the faulty motor fully extracted, it’s time to install your replacement part:
- First, take note of the specific direction the fan blade spins indicated by arrow stickers. Position new evaporator fan motor in mount bracket accordingly, lining up locking tabs.
- Rotate motor clockwise while pushing in until the locking tabs on the bracket fully click into their slots to secure tightly.
- Reattach fan blade onto replacement motor shaft using pliers to twist it in the proper direction. Spin blade by hand to test for clearance.
- Set the fully assembled replacement fan motor into the wall mount cutout, again lining up the locking tabs for the channels.
Your new evaporator fan is installed! Now to reseal the system by replacing all the covers.
7. Reattaching Evaporator Fan Cover
- Retrieve fan cover and orient it correctly with tabs pointing out.
- Align tabs on evaporator fan cover with corresponding slots on freezer wall cutout opening.
- When aligned, press along the cover perimeter to snap tabs fully back into their slots until the panel sits flush with wall surface again.
- Take metal locking rings and insert them horizontally back into the upper plastic tabs, just like stock position. Rings prevent tabs from possibly popping loose over time.
8. Reinstalling Evaporator Cover
With the fan cover re-secured, the main evaporator cover can go back on:
- Insert bottom of cover first while pulling freezer wires through their cutout, then pivot the top back into position.
- Reconnect wire harness plugs in order:
- Evaporator fan motor
- Ice maker assembly
- Ground wire
- Visually look over all wiring first, verifying correct connectors mate up – sealants can cause stickiness.
- With all wiring couplings re-joined, center the evaporator cover vertically in the rear wall space.
- Lastly, firmly screw in the 4-6 mounting screws with a Phillips screwdriver until snug to surface. Do not overtighten, or damage can occur.
9. Freezer Shelf Reinstallation
The last step of the replacement process is setting the freezer shelf back in place:
- Take shelf with curved supports facing up and insert left-side shelf clips into their corresponding mounting holes cut into the freezer’s rear wall.
- Keeping shelf level, shift shelf to the right, realigning the shelf clip channels.
- The shelf can now freely slide left and right when positioned correctly on its lower tracks.
- Replace plastic shelf spacer, which keeps the shelf centered and stabilized.
10. Power Restoration
You did it! With all components successfully back in their original locations:
- Plug refrigerator power cord back into electrical outlet.
- Let fridge fully cool down over 24 hours without opening doors. Monitor compressor functionality.
- Return frozen goods to freezer once verification is complete that new evaporator motor part resolved issue!
Great job reviving your appliance and saving on expensive repairs, thanks to this DIY walkthrough! Let the cost savings from doing it yourself power the enjoyment of your next frozen meal!
First-Time DIY Tips for Evaporator Fan Replacement
If this is your first go at replacing a fridge part, keep these pointers in mind:
Handy Helpers
- Use painter’s tape to label wires to avoid mix-ups
- Lay down towels to catch frost melt dripping
- Have a friend help detach stubborn shelves or covers
- Take pictures before disassembly as a visual guide
Troubleshooting Tricks
- Double-check that ALL wires & fasteners are reconnected securely
- Verify fan blade spins freely without obstruction
- Allow 24 hours for temperatures to re-stabilize
- If issues persist, recheck cover seating, wiring
Pat yourself on the back for a repair job well done after confirming your replacement evaporator fan functions properly!
Conclusion
With this comprehensive DIY guide, you can tackle replacing your refrigerator’s evaporator fan motor to resolve cooling issues and avoid premature food spoilage.
The step-by-step instructions and photos walk you through locating and installing the replacement fan assembly, along with best practice tips from removal to reassembly.
Take your time, use proper precautions, and refer back to these instructions when needed – you’ve got this! Getting comfortable with basic home appliance repairs will save you significant money over hiring a technician.