![background image](http://html.mh-extra.com/html/midea/wqp8-9339l-us/wqp8-9339l-us_technical-and-service-manual_1791035011.webp)
Drain Pump
Theory of parts
-
>
Check the machine part
1. If the electric part is OK, we need to check the machine part.
2. Remove bottom board.
3. If the non-return valve is wrongly assembled, the tub will remain much water. We need to
re-assemble the non-return valve.
4. If the drain pump is working, but no water drain out or just a little. We should check the
drain hose or drain body.
1. Drain off the water in the dishwasher, and
disconnect the power supply
。
(Note : Make sure to remove remained water in the
dishwasher. If not, wet the floor.)
2. Remove four screws on bottom, and then
remove bottom board.
3. Label and disconnect the two terminal lugs from
the drain pump.
4. Remove screws securing the drain pump to
sump, then remove drain pump.
5. Reverse the above procedure to install.
Access drain pump
Inspect drain pump
Check the electric part
1.Open the control panel and take out the PCB;
2.Unplug the CON4 and P4 wires, then use the multi-
meter Ω shelf to measure the red wire (PS) and white wire
(IS), the normal resistance is about 78Ω to 110Ω.
3. If the measured resistance is not correct, it means the
pump coil is broken or connector is loose. In this case, we
should check the connection first. If the problem hasn’t
been solved by re-connection, we should replace the
drain pump.
4.If the resistance is OK, but it also can’t work, maybe the
magnetism is too weak, so we need to replace the drain
pump.
IS
PS
-
11 -
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 ...