E07 error with continuous alarm; interior fan may not run and temperature may be uneven.

Safety: Unplug the freezer before accessing the fan. Beware of sharp metal edges and ice.

Steps:

• Check for airflow: With the door closed for several minutes and then opened, you should normally feel cold air movement. If not, suspect the fan.
• Access fan: Remove drawers and the inner rear panel to expose the evaporator and fan assembly.
• Inspect for ice: Look for ice buildup around the fan housing or blades. If present, defrost the area using a hair dryer on low and towels to catch water. Do not pry ice with tools.
• Spin the fan: Gently rotate the fan blades by hand. If stiff or jammed, the motor may be seized or obstructed.
• Test motor: Disconnect the fan connector and measure resistance across the motor terminals. An open circuit indicates a failed motor. If you have access to the wiring diagram, verify supply voltage when the unit is powered (only if you are trained and using proper precautions).
• Replace fan motor: If faulty, install a Bosch-compatible evaporator fan motor. Ensure the fan blades are correctly oriented and not rubbing on the housing.
• Control board: If the fan motor tests good but never receives power, the main control board may be defective and require replacement.