Zis420n Parts

This tray transformer is the low-voltage power converter used with the warming tray assembly. It provides the control voltage needed for the tray's control circuit so the tray can heat and operate reliably. What it does:

• Converts incoming appliance power to the low-voltage supply used by the tray control circuit
• Enables the warming tray to reach and maintain heat when functioning correctly
• Failing part can cause the tray to not heat, heat intermittently, or controls to be unresponsive
• Helps protect control electronics by providing the required voltage for proper operation

• One tray transformer assembly (single unit)

• Disconnect power at the breaker or unplug the appliance before servicing
• Handle wiring carefully; match connector orientation and secure all fasteners

This fill cup directs water into the ice maker so each cycle produces properly filled ice trays. It helps prevent overflows and ensures reliable water delivery to the ice maker assembly. What it does:

• Guides the water fill into the ice maker mold during harvest and fill cycles
• Helps prevent water from spilling into the freezer compartment
• Supports consistent ice size by ensuring proper water placement
• Common replacement when cracked, warped, or leaking and causing underfilled or overflowing ice

• One fill cup for the ice maker

• Disconnect power to the appliance before service to avoid electrical shock
• Remove ice maker/module per manufacturer instructions before replacing the cup
• Inspect the surrounding chute and seals for damage or ice buildup when installing
• Use only manufacturer-recommended fasteners and reassemble components in reverse order

This diffuser case assembly directs cooled air from the evaporator into the refrigerator compartment to help maintain even temperature and airflow. It replaces a cracked, broken or missing diffuser housing to restore proper air distribution. What it does:

• Channels chilled air into the fresh-food compartment for more consistent cooling
• Protects internal ducting and supports the diffuser flap/door
• Helps reduce local hot spots or inconsistent temperatures caused by damaged housing
• Fits into the factory mounting location and works with the existing duct components

• Disconnect power to the appliance before starting any repair
• Accessible from inside the fresh-food compartment; remove shelves/controls as needed for access
• Align tabs and press into place until clips fully engage; do not force or bend plastic parts
• If other diffuser components (flap, seals) are damaged, inspect and replace as needed for full function

This quick chill pan assembly circulates cold air across the refrigerator compartment to speed cooling of fresh food. It replaces a damaged or leaking pan to restore proper airflow and help maintain even temperatures. What it does:

• Collects and channels condensate while supporting the quick-chill airflow path
• Restores proper cold-air distribution when the original pan is cracked, warped, or blocked
• Can reduce frost or pooling symptoms caused by a damaged pan or misdirected drain flow
• Works with the refrigerator's evaporator/airflow system to help maintain consistent cooling

• Disconnect power before servicing; follow lockout/tagout procedures
• Installation may require removing interior panels, shelves, and trim for access
• Inspect adjoining seals, drain troughs, and clips; replace any damaged fasteners to ensure proper fit

This molded lower door trim restores the finished edge and seal area on the freezer door, improving appearance and helping the door close properly. Fits the lower front edge where the original trim is cracked or missing. What it does

• Replaces the lower exterior trim on the freezer door to cover and protect the door edge.
• Helps maintain a continuous door surface so the gasket can seat correctly.
• Commonly needed when the trim is cracked, broken, loose or missing, or when the door looks damaged.
• Cosmetic part — does not include hinges, gasket, or inner liners.

• One lower freezer door trim piece.

• High-level replacement — remove the door or access trim per your model's service instructions.
• Use basic hand tools; avoid prying on surrounding panels to prevent damage.
• Disconnect power only if your model's service manual requires door removal that could affect electrical components.
• Compare the part number and trim shape to your original part before installation.