Bosch Refrigerator Error Code E21

If your Bosch refrigerator displays Error Code E21, it signifies a communication error between the display control module and the ice and water dispenser control module. This issue can be perplexing, but with the right guidance, you can address it effectively. In this article, we will explore the nature of Error Code E21 and provide you with comprehensive steps to resolve it.

Understanding Error Code E21:

Error Code E21 essentially indicates a breakdown in communication between two vital components of your Bosch refrigerator: the display control module and the ice and water dispenser control module. When these modules can’t exchange information as they should, it can disrupt the appliance’s performance, particularly the functions related to ice and water dispensing.

Resolving Error Code E21:

To tackle this issue, follow these steps:

1. Unplug the Refrigerator: The first step is to disconnect the refrigerator from the power source. Safety should always come first when dealing with electrical appliances.
2. Inspect Wire Harness Connections: Examine the wire harness connections on both the display control module and the ice and water dispenser control module. Look for any loose or disconnected wires. If you find any, securely reconnect them.
3. Check for Wire Harness Damage: Carefully inspect the wire harness for any signs of damage, such as frayed wires or visible wear and tear. If you spot any damage, it’s best to replace the wire harness to ensure reliable connections.
4. Inspect Circuit Boards: Examine the circuit boards on both the display control module and the ice and water dispenser control module for any burnt spots or visible damage. If you see any, this is a clear sign of module damage.
5. Replace the Faulty Module: If you find that either the display control module or the ice and water dispenser control module is damaged, it’s essential to replace the faulty component. Damaged modules can disrupt the communication and overall functionality of your refrigerator.