April 19, 2023

Bosch side-by-side refrigerator error codes

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

How to replace a refrigerator thermistor

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

How to replace a refrigerator thermistor

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

How to replace a refrigerator thermistor

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

How to replace an electronic control board on the back of a refrigerator

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

How to replace a dispenser core control board in a side-by-side refrigerator

Possible parts

Display control module, Ice and water dispenser control module, Wire harness

Most common symptoms to help you fix your refrigerators

Choose a symptom to see related refrigerator repairs.

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Why is water dripping from my refrigerator onto the floor?

Main causes: water valve leaking, frozen or broken defrost drain tube, overflowing drain pan, cracked water system tubin…

Why won't my refrigerator cool at all?

Main causes: blocked air vents, compressor problems, condenser or evaporator fan not working, control system failure, se…

What routine maintenance does my refrigerator need?

Things to do: clean condenser coils, replace the water filter, clean the interior, adjust doors to prevent air leaks, cl…

Why won't my refrigerator run?

Main causes: control board or cold control failure, broken compressor start relay, compressor motor failure, defrost tim…

Why is my freezer not cold enough?

Main causes: leaky door gasket, defrost system failure, evaporator fan not running, dirty condenser coils, condenser fan…

Why isn't my refrigerator cooling well?

Main causes: blocked vents, defrost system problems, evaporator fan failure, dirty condenser coils, bad sensors, condens…

Why won't my refrigerator ice maker make ice?

Main causes: jammed ice cubes, broken ice maker assembly, dirty water filter, kinked water line, bad water valve, freeze…

Why is frost building up in my refrigerator's freezer?

Main causes: damaged door seal, faulty defrost sensor or bi-metal thermostat, broken defrost heater, bad defrost timer o…

Most common repair guides to help fix your refrigerators

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

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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

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

15 minutes or less

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 cont…

Repair difficulty

Time required

30 minutes or less

Effective articles & videos to help repair your refrigerators

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

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Should you vacuum behind your fridge? (Yes, and here’s how often)

Simply scan your appliance model number

Bosch side-by-side refrigerator error codes

Most common symptoms to help you fix your refrigerators

Why is water dripping from my refrigerator onto the floor?

Why won't my refrigerator cool at all?

What routine maintenance does my refrigerator need?

Why won't my refrigerator run?

Why is my freezer not cold enough?

Why isn't my refrigerator cooling well?

Why won't my refrigerator ice maker make ice?

Why is frost building up in my refrigerator's freezer?

Most common repair guides to help fix your refrigerators

How to clean refrigerator condenser coils

How to replace a refrigerator water valve

How to replace a refrigerator temperature control board

Effective articles & videos to help repair your refrigerators

Should you vacuum behind your fridge? (Yes, and here’s how often)

How to purge air from a refrigerator water dispenser video

How to change the water filter in an LG refrigerator

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Bosch side-by-side refrigerator error codes

Most common symptoms to help you fix your refrigerators

Most common repair guides to help fix your refrigerators

Effective articles & videos to help repair your refrigerators

Get up to $225 in statement credits†