Washing Machine Not Draining and Reporting a Timeout, Pump Seizing Within Six Months? NL-WDP-6 Drain Pump Flow & Endurance Bench Runs Six Stations (pump performance test)

A washing machine that will not drain properly and keeps reporting a drain timeout is a common source of service calls and user complaints. On tear-down the drain pump is usually found with a worn impeller, a blocked foreign object or a degraded motor: flow and head fall with time until the pump seizes and rattles. Incoming inspection typically stops at power-up and external sealing, so the time-dependent loss of drain capability is invisible; the deviation survives until the assembled machine runs, or until the end user.

What the NL-WDP-6 washing machine drain pump flow and endurance bench measures

• Six stations in parallel, with flow, head, power and temperature rise logged through continuous running (sharing the water-circuit metering module of our pump performance test benches)
• Flow-head characteristic curves filed against running time, with decay trends generated automatically for direct batch-to-batch comparison
• Continuous start / stop and stall simulation, with starting current, stall-protection trip point and foreign-object blockage judged automatically
• Noise and vibration trend monitoring, with automatic stop and running-hours recording on fault
• Sealing and leakage checks reproducing long-term housing seal reliability (data can be aligned with our washing machine test equipment lines)
• Barcode and batch binding, with raw data exported per unit for the record

Applicable standards

GB 4706.1 (household appliances – general safety), GB 4706.24 (washing machines – particular requirements), GB/T 4288 (electric washing machines for household use), IEC 60335-2-7 (washing machines – safety) and IEC 60335-2-41 (pumps – particular requirements); acceptance criteria can follow the customer's standard.

Stations and throughput

Six stations running 24/7 bring a single drain flow-head measurement down from half a day by hand to under ten minutes, while start-stop endurance is completed within weeks — so incoming lots can be sampled batch by batch.

Manufacturer

Guangdong Endurance Electronic Equipment Co., Ltd. — a non-standard testing equipment manufacturer of washing machine drain pump flow and endurance benches, pump test bench and pump performance test systems, level sensor life test machines, dishwasher test equipment and washing machine test equipment.

Keywords: pump test bench, pump performance test, level sensor life test, dishwasher test equipment, washing machine test equipment.