Error code reference

Bosch Refrigerator Error Code E20

Communication error between CM (Control Module) and DOM (Display and Operation Module).

SourceBosch Refrigerator - Full Service Manual: BC22CS30SNSp. 41, 48

Diagnostic procedure

The full E20 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check electrical connections and cables between CM and DOM; replace relevant PCB if necessary.

SourceBosch Refrigerator - Full Service Manual: BC22CS30SNSp. 41, 48

More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Where this code is documented

12 manuals in the MyPros+ library document this code for Bosch refrigerator.

Models covered by the manuals that document this code

More models are covered than are listed here.

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