HD7762
2-15
Schematics
TECHNICAL INFORMATION
De-scaling
When the appliance indicates it needs to be descaled,
operate the coffeemaker a few times with vinegar or with
a 10-15% solution of either vinegar (acetic acid), citric acid
or tartar acid, into cold tap water.
Use a paper fi lter to catch any particles coming out.
Do not use other de-scaling agents as these may harm the
appliance.
If this procedure does not restore the function, then switch
off the coffeemaker when the acid is passing through. Keep
the appliance in this condition overnight and continue/
repeat the cleaning operation.
After the de-scaling procedure, operate the coffeemaker
twice with tap water in order to rinse any residual
substances.
M
Grinder
M
Valve
motor
UI PCBA
Main PCBA
Micro
switch
Micro
switch
Gate motor
Heat
Heater
Thermostat
Fuse
Micro switch
inspection
cover
Warm 2
Warm 1
Grind motor
N
N
L
CN2
CN1
L
Power
cord
