Error code reference

Bosch Dishwasher Error Code 1

Control module has timed out due to an unidentified heating problem; all heating related parts must be checked (displayed on module, not test program).

SourceBosch Dishwasher - Service Training Manual: Full Platformp. 70

Bosch codes Bosch dishwasher codes

Diagnostic procedure

The full 1 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

Check heater (~11 ohms), Hi-Limit (~0.3 ohms), flow switch (~0.4 ohms), NTC (~55k ohms at 72°F), circulation pump (~10 ohms), control module heater relay, and wire harness. Fix heating problem then run dishwasher to reset module.

SourceBosch Dishwasher - Service Training Manual: Full Platformp. 70

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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

10 manuals in the MyPros+ library document this code for Bosch dishwasher.

Models covered by the manuals that document this code

More models are covered than are listed here.

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The full 1 procedure

Where this code is documented

Models covered by the manuals that document this code

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