Dr.coffee F20 - Heating Timeout of Powder Boiler; Steam Boiler Heating Timeout; Coffee Hot Plate Heating Timeout

Rev 00
Dr.coffee Product Maintenance Manual 67
Coffee hot
plate NTC
abnormality
a）
The connection wire of NTC
temperature sensor of coffee
electric heating plate falls off or
breaks;
b）
The coffee hot plate NTC temperature
sensor is damaged;
c）
The temperature of coffee hot plate
exceeds the upper limit of alarm;

Check the connecting wire and
reinstall or replace it

Replace the NTC temperature sensor
with a new one;

Turn off the machine power and wait
for about 30 minutes before
restarting;

Replace with a new coffee hot
plate;
5.1.10 Heating timeout of powder boiler
Name
Display prompt
R
eason
S
olution
Heating
timeout of
powder
boiler
a)
The water temperature of the powder
boiler exceeds the protection value
of the temperature controller,
causing the temperature controller
to trip;
b) NTC
temperature sensor of powder
boiler is damaged;
c) The powder boiler is damaged;

Turn off the machine power,
disassemble the machine appearance,
and manually press the thermostat
to reset;

Replace the NTC temperature sensor
with a new one;
 Replace with a new powder boiler;
5.1.11 Steam boiler heating timeout
Name
Display prompt
R
eason
S
olution
Steam
boiler
heating
timeout
a)
The temperature in the steam boiler
exceeds the protection value of the
temperature controller, causing the
temperature controller to trip;
b)
The NTC temperature sensor of steam
boiler is damaged;
c) The steam boiler is damaged;

Turn off the machine power,
disassemble the machine appearance,
and manually press the thermostat
to reset;

Replace the NTC temperature sensor
with a new one;
 Replac
e the steam boiler with a new
one;
5.1.12 Coffee hot plate heating timeout
Name
Display prompt
R
eason
S
olution