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Vibiemme Domobar Super Manual

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14 - De-scaling
WARNING: De-scaling involves pumping a chemical solution through the machine. These special
chemicals usually contain a food-grade acid that can be hazardous. Carefully follow the manufacturer’s
recommendations and use safety precautions. Even when working carefully some of it may splash about.
Gloves and eye protection are required when handling and using these chemicals. Do not allow spectators
in the area.
CAUTION: The acidic solution can splash when de-scaling. Protect the working surface under and
around the machine and immediately wash off any that splashes, particularly on the painted surfaces. Do
not touch your face or eyes during this as the de-scaler can cause serious irritation and burns to sensitive
tissues.
Depending on the mineral content of your water and how often it gets used you should de-scale the Vibiemme
Domobar Super’s boiler, heat exchanger, and brewing path at least twice a year. As water is repeatedly heated
and some of it boils off as steam, some of the mineral content in the water is left behind. These form hard water
deposits which can cause problems such as:
- failure of the water sensor to function properly
- heating element failure
- clogging of the thermosyphon pipes
- low brewing volume
- poor pressurestat response
- low-temperature grouphead
- drips and leaks from the grouphead
- inability to form pressure in the boiler due to vacuum breaker failure
De-scaling is a preventative maintenance chore that can help avoid these problems and will significantly
prolong the life of your Domobar Super.
WARNING!: De-scaling involves opening the case of the machine which exposes the internal work-
ing components. Electrical components and their wiring can present a shock hazard and many parts inside
the machine can get very hot!
CAUTION: Only use products that explicitly state that they are intended for the removal of mineral
deposits in the boilers of espresso machines. Other products, such as those made for cleaning coffee pots or
removing hard water scale from bathrooms must never be used! No other chemicals should ever be used
for this purpose, and this is the only agent that should ever be added to the water tank. Always follow the
manufacturer’s recommendation and instructions when de-scaling an espresso machine. Use of improper
cleaners in the boiler can void the warranty, damage numerous parts of the espresso machine, and may be
harmful to your health.
How to Descale
1) If the machine is so equipped, remove the water softener device from the water tank, and install the original
particle filter that fits the end of the hose. The descaling agent will permanently damage the water softener if it
is left in place during this process! Do not reinstall it until this entire procedure is completed. The original filter
will stop any foreign matter from entering the boiler or the heat exchanger.
2) Turn the power switch to Position 0 (off) and unplug the machine.
3) Pull the hoses out of the reservoir and remove the reservoir and its platform from the machine.
… 34 …


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