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Bosch Mini Split E0 Error Code
Quick answer
E0 means indoor unit eeprom error. In plain English, a control board, EEPROM, or board sensing circuit is not reading internal data correctly. Advisory Technician Breadth evidence 2 published catalog models on its documented product line. Safe first check Turn the system off with the remote, then power cycle once at the breaker or disconnect if you can do that safely. If the code returns, stop resetting and schedule service. Stop point Stop here: electrical or inverter work is technician-only. Do not open panels, test capacitors, touch wiring, connect gauges, add refrigerant, or keep resetting.
Severity: high · DIY difficulty: intermediate
Safety
TBD - must be written per-code before publish
What E0 means
E0 means indoor unit eeprom error. In plain English, a control board, EEPROM, or board sensing circuit is not reading internal data correctly. Advisory Technician Breadth evidence 2 published catalog models on its documented product line. Safe first check Turn the system off with the remote, then power cycle once at the breaker or disconnect if you can do that safely. If the code returns, stop resetting and schedule service. Stop point Stop here: electrical or inverter work is technician-only. Do not open panels, test capacitors, touch wiring, connect gauges, add refrigerant, or keep resetting.
Causes, ranked
Causes not yet documented — verify against the service manual.
Sources
- SplitAtlas manual-sourced reference — verified 2026-08-29