Error code reference

Bosch Washer Error Code 18

Pumping time exceeded - pump is blocked or broken, pressure sensor broken, hose to pressure sensor blocked, draining hose blocked.

SourceBosch Washer - Service Manual: Test Program & Coding Instructions (F20-S)p. 6

Bosch codes Bosch washer codes

Diagnostic procedure

The full 18 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Reset error with OFF and ON, check components, check wire harness.

SourceBosch Washer - Service Manual: Test Program & Coding Instructions (F20-S)p. 6

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More steps, wiring diagram references, and verified part numbers

Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

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Where this code is documented

1 manual in the MyPros+ library documents this code for Bosch washer.

Models covered by the manuals that document this code

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The full 18 procedure

Where this code is documented

Models covered by the manuals that document this code

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