B13 BETTER (B13 BEST APPEARANCE) WASHING MACHINE SERVICE HANDBOOK
104
Is there E3 error?
Yes
Important Note:
Washing machine is in NTC open circuit /
short circuit and Heater open circuit
statuses; that is, if there is E1 or E2 error,
machine cold washes and ends the
programme before the heater is activated.
* Heater
continuously
active error
E
3
Machine is boiling
the water.
Laundry comes
out very hot; they
are worn.
Remove the panel and
Heater socket for a
comfortable measurement.
KN24(Picture E3-1)
PICTURE E3-4: Water level sensor is being
checked.
PICTURE E3-1: Heater socket on KN24 card
has been removed.
Replace the control
card
Open back cover of machine. Measure the
heater resistance by removing at least one
of the heater ends; is the resistance 25
Ohm? (Figure E3-3)
Replace the heater.
Is there short circuit between pin 1 and pin
2 on KN24 connector? Check this.
(Picture E3-2)
Check the water level sensor.
When the machine is empty
and energized, perform
frequency measurement
between the pins 1 and 2. It
must be around 625 Hertz.
(Picture E3-4)
Does the heater operate
although there is no
water?
You can run a washing
programme.
PICTURE E3-3: One of the cables on heater
has been removed (on the left) and heater
resistance is being measured.
PICTURE E3-2: Short circuit is being controlled
between pin 1 and pin 2 of KN24.
Yes
Yes
No
No
KN24
12.3.3 E3
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