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Drain Pump
Theory of parts
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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
110-120VAC
Frequency
60Hz
Resistance
78-110Ω
Delivery height
0.8M
Delivery performance
≥13l/min(230VAC)
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Summary of Contents for WQP8-9339L-US
Page 3: ...Water circuit scheme Water Circuit Function Description 3 ...
Page 33: ...Troubleshooting 33 ...
Page 34: ...Troubleshooting 34 ...
Page 35: ...Troubleshooting 35 ...
Page 36: ...Troubleshooting 36 ...
Page 37: ...Troubleshooting 37 ...