Bosch Washer - Er:12 Error Code
The washer detected a water inlet fault.
Meaning
The washer detected a water inlet fault.
The Bosch Er:12 error code indicates that the washer is not filling with water at the expected rate. Older Bosch washers monitor water level via a pressure switch; if the level does not rise within a defined time window, Er:12 is triggered. This is typically caused by clogged inlet screens, low water pressure, or a faulty inlet valve.
Symptoms
Causes
Step-by-Step Fixes
- Clean the inlet screens on both hoses.
- Ensure both water valves are fully open.
- Straighten any kinks in the hoses.
- Test the inlet valve for proper operation.
Safety Notes
- Turn off water supply before removing hoses.
Applicable Models
Show Models
- WFL2060
- WFR2460
- WFMC2100
Related Pages
Other Bosch Washer Error Codes
Show All Error Codes
- Bosch Washer CL Indicator
- Bosch Washer Drain Icon Indicator
- Bosch Washer Drum Clean Indicator
- Bosch Washer E00 / -18 Error Code
- Bosch Washer E00 / -23 Error Code
- Bosch Washer E10 / -00 / -10 / -20 Error Code
- Bosch Washer E16 / F16 / E34 / F34 Error Code
- Bosch Washer E17 / F17 / F29 Error Code
- Bosch Washer E18 / F18 Error Code
- Bosch Washer E19 / F19 Error Code
- Bosch Washer E20 / F20 Error Code
- Bosch Washer E23 / F23 Error Code
- Bosch Washer E25 / F25 Error Code
- Bosch Washer E26 / F26 Error Code
- Bosch Washer E28 / F28 Error Code
- Bosch Washer Er:01 Error Code
- Bosch Washer Er:02 Error Code
- Bosch Washer Er:03 Error Code
- Bosch Washer Er:04 Error Code
- Bosch Washer Er:05 Error Code
- Bosch Washer Er:06 Error Code
- Bosch Washer Er:07 Error Code
- Bosch Washer Er:09 Error Code
- Bosch Washer Er:10 Error Code
- Bosch Washer Er:11 Error Code
- Bosch Washer Er:13 Error Code
- Bosch Washer Er:14 Error Code
- Bosch Washer Er:15 Error Code
- Bosch Washer Er:16 Error Code
- Bosch Washer Er:17 Error Code
- Bosch Washer Er:18 Error Code
- Bosch Washer Er:19 Error Code
- Bosch Washer Er:20 Error Code
- Bosch Washer Er:21 Error Code
- Bosch Washer Er:22 Error Code
- Bosch Washer Er:23 Error Code
- Bosch Washer F27 Error Code
- Bosch Washer Key Icon Indicator
- Bosch Washer Pause/Play Flashing Indicator
- Bosch Washer Suds / Foam Indicator
- Bosch Washer Tap Icon Indicator
Model-Specific Notes
On WFR models, Er:12 often appears during winter months due to partially frozen inlet hoses.
Disclaimer
The information provided on this page is for educational and informational purposes only. Repairs involve electrical, mechanical, and water-related risks. Always follow manufacturer instructions and consider contacting a qualified technician for diagnosis or repair.