Zelmer Piano 13Z014 [75/76] Descaling
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Zelmer Piano 13Z014 [75/76] Descaling

Zelmer Piano 13Z014 [75/76] Descaling
75GW13-014_v02
MAINTENANCE AND CLEANING
It is important that the espresso machine is regularly cleaned. It will ensure
a high quality of the coffee brewed. We recommend that the machine is
cleaned after each brewing. Procedure:
Rinse the brew head unit. ●
Rinse the steam wand with steam ● (C).
Wipe the steam wand ● (C) clean with a damp cloth immediately after the
espresso machine has been used.
Take out the lter ● (H) from the handle (E) and wash it, clean the holes
of the lter (H).
and wash it, clean the holes of the lter ● (I).
Important: Never wash parts and accessories of the espresso machine in
a dishwasher.
Cleaning the drip tray (I) and the grid (J)
Take out the grid (J) and the drip tray (I) (23). Wash with water with the
addition of some mild washing-up liquid, rinse and dry.
Warning: Ensure that after taking out and replacing the drip tray (I) and
the grid (J) the insert is in the right place.
Cleaning the brew head unit, the lter holder and (E) and the lter (H)
Rinse the lter (H) and the lter holder (E) with warm water after each use
and dry.
To clean the brew head unit from used coffee, rinse it with water, wipe the
head and the internal ring with a damp cloth. If the holes of the lter are
blocked with coffee, use a delicate brush.
Rubber seal of the brew head
The seal of the brew head is at the bottom of the brew head unit and it
seals the lter holder (E) coffee is poured.
Warning: It is recommended that the lter holder (E) is not left in the brew
head unit during long breaks in the use of the espresso machine, as it may
reduce the durability of the seal.
It is natural that a seal loses its elasticity and needs replacing. A lack of
tightness between the lter holder (E) and the brew head (steam is visible
around the brew head unit when pouring espresso) is an indication that the
seal is worn out.
Warning: Contact the nearest authorised service center if you think
that the seal of the brew head unit needs replacing.
Outer elements
Wipe the appliance with a damp cloth and dry it. Do not use any brushes
or abrasive cleaning agents as they may scratch outer surfaces.
Cleaning the steam wand (C)
Keeping the steam wand (C) clean is essential to ensure the maximum
performance of the steam function. Deposits of e.g. dried milk on the wand
(C) will decrease its steaming and frothing capacity.
Important: Wipe the wand (C) clean with a damp cloth and rinse with
a little steam after each use.
Should milk have dried on the steam wand (C), wrap the wand (C) with
a clean damp cloth, place the wand (C) above the drip tray (I) and turn
on steam for about 10 seconds. Next, leave the cloth on the wand (C) for
about 5 minutes until it soaks. If there still is dirt on the wand, repeat the
procedure.
Important: Never clean the steam wand (C) with an abrasive scourer as it
may damage the wand.
DESCALING
Scale is a mineral build-up which naturally occurs on all appliances
connected with heating water. Therefore the espresso machine will require
descaling on a regular basis.
Warning: Descale your coffee maker at least every 3 months. The
damages which are caused by failure to descale the appliance are not
subject to warranty repairs.
Descaling solutions
Traditionally, the following agents are used for removal of scale from coffee
makers:
Citric acid solution ●
Dissolve 2 spoonful (ca. 30 g) of citric acid in 1 l of water.
Specially designated liquids or tablets. ●
Notice: For liquids and tablets, follow the instructions shown on the
packaging of these products.
Descaling the espresso machine
Warning: Ensure that the espresso machine is switched off and the
connecting cord is disconnected from the socket.
1. Take out the water tank and rinse it clean. Depending on the descaling
agent used, follow the steps below:
A. Espresso machine descaling tablets
Pour about 1l of warm water into the water tank and put in
a suitable number of descaling tablets, as recommended by the
manufacturer. When the tablets have dissolved (it takes about
5-7 minutes), replace the tank.
B. Descaling liquid
Pour about 1.5l of warm water into the water tank. Add a suitable
amount of the descaling agent, as recommended by the
manufacturer and replace the tank.
2. If the lter holder (E) is in the brew head unit, take it out, rinse
thoroughly under running water and put it aside.
3. Using a screwdriver, unscrew the lter from the bottom of the lter
holder unit.
4. Take out the lter, the washer, the screw, and the seal and put them
aside in a safe place.
Important: Be careful not to lose the lter, the washer, the screw or
the seal after disassembling the brew head unit.
5. Using a small delicate brush, clean the brewing area of the head
removing all coffee particles.
6. Place a sufciently big container under the brew head unit.
7. Insert the plug of the connecting cord in a mains socket and switch on
the espresso machine by pressing button (M).
Warning: Remember that if the standby pilot light (N) ashes, it means
that the espresso machine is in the course of reaching the operating
temperature. The moment the espresso machine has reached the
right temperature, the standby pilot light (N) will stop ashing and will
come off. It indicates that the espresso machine has reached the right
temperature and is ready to operate.
8. Turn the regulator knob (K) into the espresso position and allow
half of the decaling solution to ow through the brew head unit.
Important: Do not run the descaling solution through the steam
wand (C).
Warning: Depending on the size of the container under the brew
head unit, it may be necessary to empty it during the process.
9. Turn the regulator knob (K) into position 0 to stop the ow (after about
half of the solution has owed through) and then press button (M)
and turn off the appliance.
10. Leave the espresso machine for about 10-15 minutes thus allowing
the descaling agent to work.
11. Next, press button (M). This will turn on the espresso machine.
12. Turn the regulator knob (K) into the espresso position and allow
the rest of the descaling solution to ow through the brew head unit.
13. Take out the water tank from the appliance and rinse it thoroughly
under running water. Check that all traces of the descaling solution
have been removed. Fill up the tank with fresh water (1) and place it
in the espresso machine.
14. Turn on the espresso machine with button (M) and turn the regulator
knob (K) into the espresso position . Allow all of the fresh water to
ow through the brew head. Repeat the procedure twice.
Warning: Depending on the size of the container under the brew
head unit, it may be necessary to empty it during the process.
15. When the process has nished, remove the container from under the
brew head and wipe the whole brew head unit thoroughly.
16. Carefully install the rubber seal, the lter, and the washer in the brew
head, following their disassembling procedure in reverse order. Using
a screwdriver, tighten the fastening screw home.
17. Fill the tank up with fresh water (1) and replace it in the espresso
machine. The appliance is ready for further use.

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