Bosch washing machines fault codes
Every Bosch washing machines fault code we have documented, with what it means. Pick yours to see causes, checks and the parts involved.
● 21 codes documented
Bosch uses 21 fault codes on its washing machines, shown on the display when the machine stops — among them Er:01, Er:04, Er:07, Er:08, Er:09. Each one points to a specific part: on this page you find them all, with what they mean.
How to read the code on the display
On most Bosch appliances the code appears on the display when the cycle stops, or is spelled out by a sequence of blinking lights.
Write the code down before switching off: many machines clear it when unplugged, and without the code the fault has to be found from scratch.
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All Bosch codes
21 codes, in order. Click one to open its page.
| CODE | WHAT IT MEANS |
|---|---|
| Er:01 | Door is open |
| Er:04 | Door lock relay won't activate |
| Er:07 | Unexpected heating - water heats up without the control module activating the heater |
| Er:08 | Heating time exceeded - heater doesn't turn off |
| Er:09 | No communication between control module and motor control module |
| Er:13 | Drain time exceeded |
| Er:14 | Overfill level reached |
| Er:17 | Aquastop error |
| Er:20 | Spin cycle terminated |
| Er:21 | Excessive foam detected |
| Er:22 | Electrical power supply problem |
| Er:25 | Door lock is blocked |
| F01 | Water intake timeout machine not filling within expected time |
| F02 | Heating timeout wash temperature not reached within expected time |
| F03 | Drain timeout machine unable to drain within expected time |
| F04 | NTC temperature sensor fault |
| F05 | AquaStop / anti-flood fault |
| F07 | Drum or spin fault |
| F08 | Door lock fault |
| F09 | Heater relay fault relay controlling the heating element |
| F10 | Control board communication error |