Parts for HRT18R1AWB: Cold Control Parts

This adaptive defrost control module manages a refrigerator's defrost cycles to reduce unnecessary defrosting and help maintain proper cooling performance. It replaces the original control board that times and initiates defrost events. What it does:

• Monitors fridge activity and initiates defrost cycles based on usage patterns to avoid excess frost buildup
• Controls the defrost heater and terminates defrost when appropriate to protect the evaporator
• Can prevent frequent or missed defrosts that lead to frost-covered evaporator coils
• Commonly replaced when the freezer or refrigerator shows repeated frosting, long run-times, or inconsistent cooling

• Disconnect power to the appliance before starting any repair to avoid shock or damage
• Replace the module in the control housing; handle the board carefully to avoid static damage
• Verify wiring matches the original and secure all connectors; note orientation before removal
• Restore power and observe a few cycles to confirm the unit is initiating/terminating defrosts correctly