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Error code reference
Bosch Freezer Error Code E20
Communication error between power module and display module.
SourceSingle Door Freezer with Ice Maker - Service Manual (T30IF70NSP)p. 63
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 relevant connection between CPM and DOM.
SourceBosch Freezer - Service Manual: SDF/IWD (T24ID80NLP07)p. 18
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
2 manuals in the MyPros+ library document this code for Bosch freezer.
Models covered by the manuals that document this code
75,000+ service documents · 20,000+ error codes · 100+ brands
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