The two bulbs in the freezer compartment of fridges serve two main purposes:
Lighting: The primary purpose of these bulbs is to provide illumination inside the freezer compartment. When you open the freezer door, the bulbs automatically turn on, allowing you to see and access the contents easily.
Heat for defrosting: The bulbs also play a role in the defrosting process. During the defrost cycle, the bulbs emit a small amount of heat, which helps to melt any ice or frost buildup on the interior walls of the freezer. The water resulting from the melted ice flows into a drain pan at the bottom of the freezer, where it evaporates.
If both bulbs in the freezer compartment blow at the same time, a few things might happen:
Loss of lighting: Obviously, the first noticeable impact would be the loss of lighting inside the freezer. It will become challenging to see and locate items in the freezer, especially in low-light or dark conditions.
Increased frost/ice buildup: The absence of heat from the bulbs during the defrost cycle could lead to a more rapid accumulation of frost or ice on the freezer's interior walls. This buildup might reduce the freezer's efficiency, as it can restrict airflow and reduce the available space for storing frozen items.
Defrosting issues: The lack of heat provided by the bulbs during the defrost cycle might result in incomplete defrosting. This can lead to more frequent manual defrosting being required to prevent excessive ice buildup.
If both bulbs blow simultaneously, it is advisable to replace them as soon as possible. Replacing the bulbs is usually a straightforward task, and you can refer to the refrigerator's user manual for guidance on how to do it. If you're unsure or uncomfortable doing it yourself, you can contact a professional technician or the refrigerator's manufacturer for assistance.