Inspect Washing Pump - Panasonic NP-6R2MUQNZ-NZ Service Manual

5.6.3.

Inspect Washing Pump

5.6.3.1. Check the electric part
1. Open the control panel and take out PCB;
2. With the door closed, unplug the CON5, then use the multi-meter Ω shelf to test resistance between two wires (ML and ACN),
the normal resistance is about 100 Ω to 170 Ω.
3. If the resistance is not correct, it means the pump coil is broken or the connector is loose, In this case, we should check the
connection first. If the problem hasn't been solved by re-connection, we would replace the washing pump.
4. If the resistance is OK but it cannot work, it maybe the capacitor weakly, we need to replace the capacitor.
5.6.3.2. Check the machine part
1. If the electric part is OK, we need to check the machine part.
2. Remove bottom board.
3. Check the pump assembly, if the bracket is loose, it will bring the noise, we need to tighten it.
4. If the wash pump cannot start and the machine hasn't been used too long, maybe the seal element is bond.
5. If the drain pump is working, but no water out or just a little. We should check the vane wheel.
22