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Before repairing, use multimeter to judge circuit stand of fail
.
6 CHECK POINT OF CIRCUIT
33
No Parts
Picture
Test Description
Parameter
Remarks
1 Water
sensor
Measuring two
vertical terminals.
Capacitance value
range 40-50nF-
PASS
2 Door
lock
Electrify the
resistance with
Door Plunger in it.
1 seconds after the
power supply can
automatically locked,
after the power off can
automatically unlocked
immediately-
PASS
3 Water
valve
Measuring
resistance.
Resistance value range
3-6KΩ-
PASS
4 Pump
Measure the
resistance.
Resistance value range
150-250Ω-
PASS
5 Heater
Measuring
resistance.
Resistance value range
20-35Ω-
PASS
6 NTC
Measuring
resistance.
Resistance value range
4.8kΩ±8%@25℃0-
PASS
7 Motor
Measure the
resistance of the
toroids
Resistance value range
(Pin1~Pin2~Pin3)
The resistance
differerence between
erery two PINS is less
than 5%-
PASS
1
2 3