Philips EP 800 Series Service Manual page 38

Test mode
Press and release B4 to
switch on the Pump (100
impulses). With the EV open
the water goes out from the
HotWater spout.
With the EV closed the water
goes out from the Coffee
spout.
ThermoBlock and NTC
Press and release B8 to
toggle the ThermoBlock.
Check the absorbed current.
In this case we suppose that
was OFF, then will be ON
100%.
Press and release B8 to
toggle the ThermoBlock.
Check the absorbed current
< 0,5A. In this case we
suppose that was ON, then
Philips EP Series
38
L5 ON & L19
remain OFF,
Pump ON
and after 5sec.
L5 OFF & L26
ON, Pump OFF.
L5(O) ON & L19(B)
BLINK followig the
impulses of the
flowmeter
L5 ON & L19
remain OFF,
Pump OFF, and
after 5sec. L5
OFF & L26 ON ,
Pump OFF.
The current is
out of range
L11(O) OFF->ON
L11(O) OFF &
L26(R) Blink
The current is
very low <0,5A.
The current is
L11(O) ON->OFF
present>0,5A.
Wiring of the
Flowmeter not
connected
Wiring of the
Flowmeter
damaged (open)
Flowmeter
damaged
Connector JP20 in
Main damaged
(short circuit)
uP U2 in Main
damaged (short
circuit in Pin18)
Wiring of the PUMP
not connected
Wiring of the PUMP
damaged (open)
PUMP damaged
The drive of the
Pump in the Main is
damaged
Wiring of the NTC
not connected
Wiring of the NTC
damaged (open)
NTC damaged
L26 ON
Connector JP15 in
Main damaged
(short circuit)
uP U2 in Main
damaged (short
circuit in Pin24)
TB damaged
The drive of the TB
in the Main is
damaged
The TB has
reached the max
temperature.
Wiring of the TB not
connected
TCO open
Wiring of the TB
damaged (open)
TB damaged
The drive of the TB
in the Main is
damaged
The drive of the TB
in the Main is
still damaged
Check the wiring
Change the wiring
Change the
Flowmeter
Change Main Board
Change Main Board
Check the wiring
Change Main Board
Change the PUMP
Change Main Board
Check the wiring
Change the wiring
Change the wiring
Change Main Board
Change Main Board
Change the TB
Change Main Board
Brew water to reduce
the temperature. And
repeat the test.
Check the wiring
Change theTCOs
Change the wiring
Change the TB
Change Main Board
Change Main Board