Cleaning; Fault And Remedy - ADE TD 1902 Mode D'emploi

Cleaning

NOTE on material damage
Do not immerse the timer in water
or other liquids. Do not use rough,
scratching or abrasive cleaning
agents.
− If necessary, remove dust with a soft, dry
cloth, or wipe with a slightly damp cloth.

Fault and remedy

No function.
‚ Are the batteries empty or inserted the
wrong way around?
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