Krups XP7200 Series, Servicing Manual

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5 5 Pump priming During the first seconds of pump start-up,
volume is zero Flowmeter fault (wires reversed,
connector offset, …)
Drop of water on the flowmeter
connector
Pump fault
Water flow blocked: hose
caught, strainer missing (tank
valve not actuated), tank badly
connected
Unpriming of pump in actuator
down phase (remove tank)
6 6 Pump in actuator
down phase The flow has not dropped (> 50ml/min)
after the actuator has been filled to the
maximum (80ml); there is a water
leakage and the actuator does not fill Look for the leakage source:
hoses, actuator, priming valve?
Flowmeter hoses changed over
Distributor problem (leakage at
drain ..)
Faulty connection between the
2 picto boards
7 7 Pump in actuator
down phase The flowmeter signal has dropped
(<50ml/min) but the actuator volume is
insufficient (<25ml); there is a blockage
in the circuit Ground coffee clogged up:
Tamping head stuck
Ejector blocked
Tank badly connected
Hoses caught (pump suction)
Fault on the pump switch
(component or control via cake
tray)
Pump priming fault (in presence
of filter? coffee-maker stored
over a long period without tank
or with tank empty?)
Water-level board or bundle
defective
8 8 Hot water and
Coffee Pump After a certain time of pump control
during coffee or water flow, the circuit is
considered to be blocked as the water
hardly flows at all Coffee grids plugged
Creamy seal plugged
Thermoblock plugged
9 9 Time_Setting A NTC fault is detected; temperature too
low or too high NTC fault (component, bonding,
connector, wires…)
Coffee leakage on NTC
(resistor value)
10 0A Time_Setting Heating resistor fault detected, heating
was started but temperature has not
changed Thermoblock resistor fault
(10) (Faulty wiring connections)
NTC unstuck
NTC cracked
0B Spi_TransLCD During message transmission, the
message was not sent since there was
no clock at the end of a TimeOut: Find the bad connection
(11)
faulty connection between the 2 boards
Faulty communication between the 2
boards Disconnect and reconnect the
coffee-maker 0C
(12)
Distributor blocked, does not turn Determine the cause
0D Faulty connection between the 2 boards Find the bad connection
(13)
0E Defective power board Replace the power board
(14) Faulty connection between the 2 boards Find the bad connection
10 Defective power board Replace the power board
(15) Electromagnetic interference problem
(overvoltage…) Disconnect and reconnect
FF
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