Dr.coffee F20 - Faults Without Screen Prompts

Rev 00
Dr.coffee Product Maintenance Manual 69
5.2 Faults without screen prompt
5.2.1 Unable to start the machine
Name
Display prompt
R
eason
S
olution
Solution nothing
a) The machine is not connected to
the power supply;
b)
The connected power supply voltage
is too low;
c) The machine has not been started;
d) The switch power board is damaged;
e) The main power fuse is blown;
 Please check whether the machine
has been connected to the power
supply;
 Connect the voltage power supply
that meets the requirements of the
coffee machine
 Check whether the power switch of
the machine is turned on;
 Replace the switch power supply
board with a new one;
 Replace with new insurance;
5.2.2 Can't suck milk
Name
Display prompt Reason Solution
Can't suck
milk
nothing
a) The milk tank is empty;
b) The beater is blocked;
c) Milk pump failure;
 Check whether the milk tank has
been filled;
 Dismantle the washer for
cleaning;；
 Check whether the milk pump works
normally or replace it;
5.2.3 Milk can be produced without milk foam
Name
Display prompt Reason Solution
Milk can be
produced
without
milk foam
nothing
a) The air inlet is blocked;
b) The intake pipe is blocked;
c) The intake valve is damaged;
 Dredge the air inlet or replace
it;
 Check and dredge the air inlet
pipeline;
 Replace the intake valve with a
new one;
5.2.4 No coffee
Name
Display
prompt
R
eason
S
olution
No coffee nothing
a) The ground coffee powder is too
fine;
b) Too much grinding powder;
c) The filter screen of the bubbler
is blocked;
d) Water leakage or damage of the
bubbler;

Roughen the grinding degree of the
bean grinder;
 Calibrate the grinding amount;
 Remove the washing filter screen
of the bubbler;
 Use tablets for deep cleaning of
the washing and boiling system;
 Dismantle the bubbler and
reinstall it or replace it with a
new one;