Bosch Mini Split Error Codes

17 codes · manual-verified where marked · draft entries clearly flagged

E-codes

Bosch E0 error code draft
E0 means indoor unit eeprom error. In plain English, a control board, EEPROM, or board sensing circuit is not …
Bosch E1 error code draft
E1 means communication error between indoor unit and outdoor units. In plain English, the indoor and outdoor c…
Bosch E3 error code draft
E3 means indoor fan speed error. In plain English, a fan is not moving at the speed the control expects, so th…
Bosch E4 error code draft
E4 means indoor return air temperature sensor error. In plain English, the named temperature or air-quality se…
Bosch E5 error code
E5 means an indoor coil temperature sensor error on Bosch Climate 5000 Gen 2 / legacy single-zone systems - th…

Bosch F0 error code draft
F0 as Outdoor current overload sensed. Technician boundary Stop here: compressor and electrical or inverter wo…
Bosch F1 error code draft
F1 as Outdoor ambient temperature sensor error. Technician boundary Stop here: electrical or inverter work is …
Bosch F2 error code draft
F2 as Outdoor coil temperature sensor error. Technician boundary Stop here: electrical or inverter work is tec…
Bosch F3 error code draft
F3 as Compressor discharge temperature sensor error. Technician boundary Stop here: refrigerant or sealed-syst…
Bosch F4 error code
F4 means an outdoor unit EEPROM parameter error on Bosch Climate 5000 Gen 2 systems - the outdoor (or indoor) …
Bosch F5 error code draft
F5 as Outdoor unit fan speed error. Technician boundary Stop here: compressor and electrical or inverter work …
Bosch F6 error code draft
F6 as Indoor coil outlet temperature sensor error. Technician boundary Stop here: electrical or inverter work …

Bosch P0 error code draft
P0 as Inverter module IPM error. Technician boundary Stop here: refrigerant or sealed-system, compressor, and …
Bosch P1 error code draft
P1 as High or low voltage protection. Technician boundary Stop here: compressor and electrical or inverter wor…
Bosch P3 error code draft
P3 means outdoor unit low temperature lockout. In plain English, outdoor temperature is outside the range the …
Bosch P4 error code draft
P4 as Compressor drive error. Technician boundary Stop here: compressor and electrical or inverter work is tec…
Bosch P5 error code draft
P5 as Mode conflict. View the fix -> Split Atlas Every specification traced to a source. Tools All tools Si…