Daewoo EGSP-130E, Technical & Service Manual

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Drain Pump Theory of parts -
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B View
ottom
Location of Drain Pump
Technical data
The work principle
to washing pump
connect to drain hose
motor
terminals
Drain pump integrated into sump
The work principle
Drain pump consists of electrical motor, impeller, inlet and outlet.
Drain pump is a kind of pump driven by permanent magnet synchronous motor.
The rotor is made with permanent magnet material, the running inertia of rotor
is very small, the stator consist of silicon steel stack and coil. When the drain
pump is on power, the rotor will be very easy to start.
The defeat point
1. The motor coil is broken, so the drain pump can
’
t work. It will cause the E2 ,
E4 or E1 error .
2. The magnetism of motor rotor is weak, so drain pump cannot work. It will
cause the E2, E4 or E1 error .
3. The connector is loose, so the drain pump can
’
t work. It will cause the E2, E4
or E1 error .
4. The rotor is locked by residues, so the drain can
’
t work . It will cause the E2,
E4 or E1 error .
5.The drain pump assembly rack is loose, it will cause noise.
6.The non-return valve is bad, the remain water is too much.
Explanatory notes: failure of drain pump may cause E1, because
Nominal voltage 220-240VAC
Frequency 50Hz
Resistance 150 － 220 Ω
Delivery height 1M
Delivery performance ≥ 17l/min(230VAC)
Rate current ≤ 0.20A
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