Bosch side-by-side refrigerator error codes

Bosch

These error code explanations can help you diagnose a problem with your Bosch side-by-side refrigerator. For repair how-to help, visit the PartsDirect repair help section, which includes repair help for refrigerators, other major appliances, lawn and garden equipment, garage door openers, vacuum cleaners and more. Search for your model number to find a complete list of replacement parts for your refrigerator.

Error Code
Condition
DIY advice
E01

Refrigerator compartment temperature sensor is defective

Check/Repair

Unplug the refrigerator and reconnect any loose connections on the wire harness on the temperature sensor for the refrigerator compartment, which is in the upper right corner of the refrigerator. Replace the wire harness if damaged. If the wire harness connection is okay, replace the refrigerator compartment temperature sensor.

How-to help
Possible parts
Refrigerator compartment temperature sensor, Wire harness
E02

Freezer compartment temperature sensor is defective

Check/Repair

Unplug the refrigerator and reconnect any loose connections on the wire harness on the temperature sensor for the freezer. Replace the wire harness if damaged. If the wire harness connection is okay, replace the freezer compartment temperature sensor.

How-to help
Possible parts
Freezer compartment temperature sensor, Wire harness
E03

Temperature-controlled drawer temperature sensor is defective

Check/Repair

Unplug the refrigerator and remove the temperature-controlled refrigerator drawer. The temperature sensor is on the right side of the refrigerator compartment liner. Remove the sensor cover reconnect any loose connections on the wire harness on the temperature sensor for the drawer. Reconnect the wire harness if loose. Replace the wire harness if damaged. If the wire harness is okay, replace the temperature controlled drawer temperature sensor.

How-to help
Possible parts
Temperature controlled drawer temperature sensor, Wire harness
E15

Ambient temperature sensor is defective

Check/Repair

The ambient temperature sensor is an internal component of the display control module. Unplug the refrigerator for 3 minutes to reset the display control module. If the E15 code returns you restore power, replace the display control module.

Possible parts
Display control module
E10

Main control board module is defective

Check/Repair

Unplug the refrigerator for 3 minutes to reset the main control board module. If the E10 code returns after you restore electrical power, replace the main control board module.

Possible parts
Main control board module
E11

Display control module is defective

Check/Repair

Unplug the refrigerator for 3 minutes to reset the display control module. If the E11 code returns after you restore electrical power, replace the display control module.

Possible parts
Display control module
E20

Communication error between the main control board module and the display control module

Check/Repair

Unplug the refrigerator and reconnect any loose connections on the wire harness for the main control board module and the display control module. Replace the wire harness if damaged. Check the main control board module and display control module for burnt spots on the circuit boards or visible damage. Replace the main control board module or display control module if damaged.

How-to help
Possible parts
Main control board module, Display control module, Wire harness
E21

Communication error between display control module and the ice and water dispenser control module

Check/Repair

Unplug the refrigerator and reconnect any loose connections on the wire harness on the display control module and the ice and water dispenser control module. Replace the wire harness if damaged. Check the display control module and ice and water dispenser control module for burnt spots on the circuit boards or visible damage. Replace the display control module or ice and water dispenser control module if damaged.

How-to help
Possible parts
Display control module, Ice and water dispenser control module, Wire harness

Symptoms common to all refrigerators

Choose a symptom to see related refrigerator repairs.

Main causes: leaky door gasket, defrost system failure, evaporator fan not running, dirty condenser coils, condenser fan not running
Main causes: blocked air vents, compressor problems, condenser or evaporator fan not working, control system failure, sensor problems
Main causes: jammed ice cubes, broken ice maker assembly, dirty water filter, kinked water line, bad water valve, freezer not cold enough
Main causes: water valve leaking, frozen or broken defrost drain tube, overflowing drain pan, cracked water system tubing, leaking door seal
Things to do: clean condenser coils, replace the water filter, clean the interior, adjust doors to prevent air leaks, clean the drain pan
Main causes: damaged door seal, faulty defrost sensor or bi-metal thermostat, broken defrost heater, bad defrost timer or control board
Main causes: control board or cold control failure, broken compressor start relay, compressor motor failure, defrost timer problems
Main causes: blocked vents, defrost system problems, evaporator fan failure, dirty condenser coils, bad sensors, condenser fan not working

Repair guides common to all refrigerators

These step-by-step repair guides will help you safely fix what’s broken on your refrigerator.

How to replace a refrigerator temperature control board

If the temperature in your refrigerator doesn't match the temperature you set, the problem could be the temperature control board—a service technician can give you a definite diagnosis. If the board is at fault, follow these steps to replace it yourself.

Repair difficulty
Time required
 30 minutes or less
July 20, 2015
By Lyle Weischwill
How to clean refrigerator condenser coils

Help your refrigerator run more efficiently by cleaning the condenser coils. It's easy and takes just a few minutes.

Repair difficulty
Time required
 15 minutes or less
July 20, 2015
By Lyle Weischwill
How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water.

Repair difficulty
Time required
 30 minutes or less

Articles and videos common to all refrigerators

Use the advice and tips in these articles and videos to get the most out of your refrigerator.

May 23, 2016

Diagnosing refrigerator thermistor problems video

By Sears PartsDirect staff

If your refrigerator isn't cooling at the right temperature, the problem could be the thermistor. Here's how to check.

January 27, 2016

How to purge air from a refrigerator water dispenser video

By Sears PartsDirect staff

Follow the steps in this video to remove air from the water line connected to your refrigerator's water dispenser so the water dispenses smoothly.

January 18, 2016

Troubleshooting an Er If error code on a refrigerator video

By Sears PartsDirect staff

Learn how to fix your refrigerator if it's displaying an Er If error code.