Bosch Refrigerator Error Code E08 — What It Means & How to Fix It

What Does This Error Mean?

E08 on a Bosch refrigerator means the freezer fan motor has a fault. This fan circulates air over the evaporator coil inside the freezer. Without it, the evaporator cannot transfer cold to the compartment air efficiently, and both the freezer and fridge will warm up.

Affected Models

Bosch Series 4 Refrigerator
Bosch Series 6 Refrigerator
Bosch Series 8 Refrigerator
Bosch Benchmark Series Refrigerator

Common Causes

Freezer fan motor has burned out or seized
Fan blade blocked by ice buildup around the evaporator coil
Fan motor wiring harness connector loose or corroded
Control board fault not sending power to the freezer fan
Fan motor bearing worn — motor running but very noisy before failing

How to Fix It

Unplug the fridge and manually defrost for 24-48 hours.

Ice buildup around the evaporator can lock the fan blade in place. Full defrost is the first step — if the fan runs normally after, the defrost system is the root cause.
After defrosting, listen for the freezer fan when the compressor restarts.

You should hear the fan start within a few minutes of plugging the fridge back in. If it is silent, the fan motor has failed.
Call a Bosch technician to replace the freezer fan motor.

The technician will remove the freezer back panel, test the motor and its wiring, and fit a replacement if faulty.

When to Call a Professional

E08 requires a technician to access the freezer evaporator compartment. The fan is behind the freezer back panel near the refrigerant evaporator coil — professional access recommended.

Frequently Asked Questions

Is E08 worse than E07 on a Bosch fridge?

E08 (freezer fan) tends to have a bigger impact than E07 (fridge fan) because the freezer fan circulates air over the main evaporator coil. When the freezer fan fails, both the freezer and fridge compartments are affected. When the fridge fan fails (E07), the freezer often stays cold while the fridge warms up.

My Bosch fridge is making a loud noise before E08 appeared. Why?

A buzzing, grinding, or rattling noise before the fan stops is usually the fan motor bearing wearing out. Once the bearing seizes completely, the fan stops and E08 appears. If you hear unusual fan noise, book a service visit before the motor fails completely.