Carico ULTRA TECH CLEAN MACHINE Manual page 22

and empty out the boiler using a basin or other such receptacle.
For a more thorough cleaning of the electronic sensor, we advise you to use a
glass of white non-distilled vinegar, or a mixture of water (70%) and Carico's
descaler (30%).
Never use concentrated, undiluted descaling products! You could
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chemically damage the sensor's surface! Leave the product or the white
non-distilled vinegar to act on the sensor for at least 2 hours (Pict. 16).
Fasten the sensor back onto the machine, by turning clockwise.
Tighten without forcing.
IMPORTANT! The first time you use the appliance after descaling, remember
to discharge a little steam onto a dirty cloth. Repeat this several times, in order
to empty the steam circuit of all descaling product.
The appliance is now ready for use once again!
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EN