First of all you need to switch OFF the machine and check for the Cause.You need to check :-
1. Water Supply to the machine might be interrupted. Make sure all supply taps are open.
2. Water Mains Failure. Check other water supply points/ faucet are working.
3. Damaged Water Feed Pipe - Check for Damaged /Kink pipe.
The process for Descaling :-
Unfortunately, in spite of the best-laid plans of mice and men, espresso machines often get clogged by scale, deposits of minerals from hard water. Scale can cause serious damage if untreated. If your espresso machine's water flow has decreased a lot, it's probably because of scale. Fortunately, there is an easy and inexpensive way to descale your espresso machine.
- Obtain some citric acid. You can either order this online or
find it in the kosher foods section of the supermarket (usually
marketed as "sour salt"). Acid solutions dissolve scale, which is made
of calcium carbonate. There are special solutions marketed specifically
for descaling, but citric acid works just as well and is much cheaper.
Prepare the descaling solution by mixing citric acid with water (I use two tablespoons of acid and a quart of water).
the descaling solution in the water tank, turn on the machine, and run
water through the steam wand until the cup is filled, to expose the
parts to the solution. Turn off the machine, and leave it for 20
minutes so that the solution has time to dissolve scale.
After 20 minutes, run more water
Run solution through the machine every 20 minutes, until the water tank is empty.
the water tank with plain water, and run water through the machine
until output water no longer tastes sour. This is important, because
excess citric acid does not make coffee taste good.
Let me know, if need further assistance.
Hope i helped you.
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