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Doc.nr.:TBKW_17109_A_EN

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BM250 / BM256

Diagnostic Procedure

November 2017

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To enter the Diagnostic Mode:

Press and hold the STOP/START button then switch the Power Switch ON

The first screen is an indicator of the software version for development purpose only:

screen:

301

Use the or button to progress through the test

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1: motor ON

2: motor OFF

3: heater ON

4: heater OFF

5: motor & heater ON

6: motor & heater OFF

7: buzzer ON

8: buzzer OFF

next LCD display ON – all segments are displayed

next LCD display OFF – display is cleared

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The last two screens are internal codes equivalent to temperature readings and are for

development purpose only, for example:

110B

1270

*please note, these codes will change depending on temperature.

The screen will return to:

301

and the diagnostic check can be repeated if necessary.

To exit the Diagnostic Mode, press the START/STOP button then switch the Power Switch

OFF, or unplug the appliance for at least 5 seconds.