Parts for Frigidaire FFU21F5HWT: 07 - System Parts

This aluminum strap secures the defrost heater firmly against the evaporator coil to maintain proper contact during defrost. Correct contact improves heat transfer so frost melts evenly and helps prevent recurring ice buildup on the evaporator.

• Secures the defrost heater to the evaporator for proper contact and heat transfer
• Promotes complete, even defrosting across the evaporator coil
• Helps reduce repeat frost/ice accumulation caused by a shifted or loose heater
• Typical clues include a loose heater, uneven frost pattern, or rattling near the evaporator

• Disconnect power and allow ice to melt before accessing the evaporator
• Use care around sharp fins and fragile refrigerant tubing; do not puncture or deform the coil
• Position the heater per your model's parts diagram and tighten the strap for firm, even contact
• Verify wiring is routed clear of the fan and moving parts before reassembly

Includes service line.

The Defrost Heater is an OEM part for Frigidaire refrigerators. This heater is responsible for melting frost that accumulates on the evaporator coils during the cooling cycles, ensuring that the refrigerator and freezer operate efficiently and maintain proper temperatures. This assembly also includes a defrost thermostat, which monitors the temperature and ensures that the heater operates as needed.

Common causes of a bad defrost heater include electrical failures, damage from ice accumulation, and general wear from repeated heating cycles.

Symptoms of a bad defrost heater include:

• Frost buildup on the evaporator coils
• The refrigerator or freezer not maintaining the correct temperature
• The refrigerator running continuously without proper cooling
• Water leakage inside the refrigerator due to melting ice

This OEM replacement is also compatible with Electrolux, Gibson, Kelvinator, and Kenmore models.

The EVAPORATOR INSULATOR is an OEM part for Frigidaire refrigerators. It is a heat-resistant insulating pad or wrap that surrounds the evaporator coils. The insulator works to retain cool air and prevent warmer air from entering the refrigerated compartment.  

Causes of a bad insulator can include deterioration or breakdown of insulating properties over time due to aging materials. Cracks, holes, or compressed sections of the insulator result in reduced insulation performance.

Symptoms of a bad evaporator insulator include:

• Inconsistently cool or warmer fridge temperatures 
• Frost or ice buildup on evaporator coils or surrounding areas
• Higher than normal electric bills from inefficient cooling
• Warm or cold spots inside refrigerator shelves and compartments

This OEM Frigidaire replacement insulator is compatible with some Kitchenaid, Electrolux, Gibson, Kelvinator, and Kenmore side-by-side refrigerator models. 

This compressor kit is made to be used with freezers and refrigerators by several manufacturers. It includes the compressor as well as all small parts associated with it. The compressor is a component that helps move the refrigerant throughout the appliance's system. Temperature sensors indicate when the compressor should run. If the compressor is damaged, it may make strange noises, no longer cool properly, or could begin to overheat.If any of these issues are present, the compressor should be replaced. First, make sure the refrigerator is not connected to a power source. Remove perishable items from the appliance and place them in an icebox, cooler with ice, or another refrigerator. Locate the compressor on the back of the appliance by removing the metal guard. Remove the wire between the compressor and the capacitor before taking off the compressor. Replace this part with the new one by connecting it to the wire and reassembling the appliance.This is a compressor kit for use with refrigerators and freezers made by Crosley, Electrolux, Westinghouse, Frigidaire, Kelvinator, Tappan, and Gibson. It is sourced directly from the manufacturer and sold as a single part. This is a genuine OEM replacement part.

This electronic control board manages core cooling functions in your appliance, including compressor/fan operation and the automatic defrost cycle. Replacing a failing board can restore stable temperatures and more reliable, frost-free performance.

• Regulates compressor and evaporator fan operation to maintain the set temperature
• Controls and times the automatic defrost cycle to reduce frost buildup
• Interprets inputs from sensors and user controls to coordinate system responses
• Common symptoms of a failed board: inconsistent temperatures, continuous running or short cycling, heavy frost/ice on coils, or unresponsive/intermittent controls

• Disconnect power before servicing; handle the board with ESD precautions
• Note connector locations; transfer any mounting brackets or covers from the original as needed
• Seat all connectors fully and secure the board before restoring power
• After installation, monitor temperature and defrost operation

This replacement drain pan collects defrost water from the evaporator and holds it in the machine compartment so it can evaporate. Replacing a cracked, warped, or missing pan helps prevent puddles under the appliance and musty odors. What it does:

• Collects defrost and condensate water routed through the drain tube
• Sits near the compressor/condenser so heat and airflow aid evaporation
• Helps prevent floor leaks caused by a damaged or misaligned pan
• Common symptoms may include water under the unit, visible pan cracks/warping, rattling from a loose pan, or persistent musty smells

• Includes 1 drain pan

• Unplug the appliance and pull it forward to access the rear; remove the lower rear access panel
• Remove the old pan and transfer any clips or supports if present
• Seat the drain tube into the new pan and position the pan level, clear of moving parts
• Reinstall the access panel and restore power; check for proper drainage after a defrost cycle

The Run Capacitor is an OEM part for Frigidaire refrigerators. It helps maintain a consistent electrical current to the compressor, ensuring efficient operation and optimal cooling performance.

Causes of a bad run capacitor can include electrical surges, prolonged use leading to wear and tear, or physical damage. A failing capacitor can lead to the compressor running inefficiently or not at all, affecting the refrigerator's ability to maintain the desired temperature.

Symptoms of a bad run capacitor include:

• The refrigerator not cooling properly
• The compressor not starting or running inconsistently
• Clicking sounds coming from the refrigerator
• The refrigerator cycling on and off frequently

This OEM replacement is also compatible with Electrolux, Gibson, Kelvinator, and Kenmore models.

This replacement power cord delivers household electricity from the outlet to your appliance. Installing a new cord restores safe, reliable power when the original is damaged, worn, or causing intermittent operation.

• Supplies AC power from a household outlet to the unit
• Common fix for no power, flickering lights, or power loss when the cord is moved
• Replaces cords with cuts, cracks, burn marks, or melted areas
• Restores a secure electrical connection for safe, consistent operation

• Unplug the appliance and verify the wall outlet is working before replacing parts
• Access the cord routing and internal connections; note wire positions and routing before removal
• Transfer and secure any strain relief/clamp; keep wiring clear of sharp edges and hot surfaces
• After installation, ensure the cord isn't pinched and the plug seats fully in the outlet

This support is a small mounting bracket used inside the appliance to hold an interior component, such as a shelf or basket. Replacing a cracked or missing support restores a secure, level fit and helps prevent wobbling or dropping.

• Provides a stable mounting point for a shelf, basket, rail, or panel
• Keeps interior components aligned and level
• Common symptoms: shelf/basket tilts, won't seat, or falls; visible cracks or missing support
• Replace if broken, deformed, or worn to restore proper fit

• Disconnect power and clear the work area before starting
• Remove the affected shelf/basket/panel to access the mounting point
• Release the damaged support (snap tabs or remove screw), align, and install the new support
• Reinstall the component and verify it sits level and secure

This #8-32 x 3/8 screw secures appliance panels, brackets, and assemblies. Replace a missing or stripped fastener to keep parts tight and aligned, reduce vibration, and restore proper fit in compatible refrigerators and freezers.

• Machine-thread fastener sized #8-32, 3/8-inch length
• Secures control housings, trims, covers, and support brackets per model design
• Replaces missing, worn, or corroded screws that cause loose or rattling parts
• Helps maintain alignment and stability after service

• Unplug the appliance; shut off water if applicable
• Match thread size to the original and start by hand to avoid cross-threading
• Use the correct driver; do not overtighten, especially into plastic
• Verify component alignment and operation after fastening

• Thread size: #8-32
• Length: 3/8 inch

This hex head screw secures panels, brackets, and small components on appliances, restoring proper fit and stability. It's a direct replacement fastener when an original mounting screw is missing, loose, or damaged. What it does:

• Secures panels, brackets, trim, and internal components to prevent rattling or movement
• Replaces stripped, missing, or damaged mounting screws that cause loose parts or misalignment
• Restores reliable mechanical fastening so doors and panels sit flush and operate correctly
• Works as a general-purpose appliance mounting screw when original fasteners are worn

• Always disconnect power to the appliance before starting any repair
• Match the screw to the original location and thread engagement; start by hand to avoid cross-threading
• Use the correct driver or socket for the hex head and tighten until snug—do not overtighten
• If the original hole or threads are damaged, repair or replace the mating hardware before installing the screw

The Thermistor is an OEM replacement part for Frigidaire Freezers. It is a temperature-sensitive electronic component located inside the freezer that helps monitor and regulate interior temperatures. 

Causes of a bad thermistor can include failure over time due to normal usage or moisture damage. Without proper monitoring, interior temperatures could fluctuate unpredictably.

Symptoms of a bad thermistor include: 

• Inconsistent or inaccurate temperature readings  
• Temperature control issues where the freezer is too warm or cold
• The compressor and cooling system cycling on and off excessively
• Frost or ice buildup in unexpected areas

This OEM Frigidaire part is also compatible with brands including Electrolux, Gibson, Kelvinator, and select Kenmore models.