e45
Moderate
Bosch · Washing Machines
Communication error between control modules
Quick Answer
Error code E45 on your Bosch Washing Machines means: Communication error between control modules. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Unplug the washer and reconnect any loose wires between control modules.
2
Inspect wire harnesses for damage.
3
Replace the wire harness if damaged.
4
If the problem persists, replace the motor control module.
5
In some cases, the main control module may also need replacement.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Wire harness
Motor control module
Main control module
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