DRAIN PUMP - CSW45

Service replacement part A37649-001 covers the drain pump csw45 used in common repair scenarios. If the machine has multiple production revisions, confirm the unit tag and the original part markings before purchase. Identifiers like CSW45 appear in the naming; verify them against the equipment data plate. As a pump, this part is used to restore water movement and circulation through the system. Symptoms that can point toward this type of part include uneven distribution, intermittent pumping, and low circulation. In repairs, replacement is considered when inspection and testing confirm the fault is tied to this component. Good troubleshooting includes matching the part number, checking the installation area, and confirming the failure is not caused by a related component. Pump troubleshooting commonly includes checking voltage, confirming flow, and inspecting for scale or debris that blocks the impeller. Once the failed part is confirmed and replaced, cycle behavior should normalize and performance should return to expected operation. Disconnect power before service, document the original layout with a photo, and reinstall so nothing pinches, rubs, or binds. After installation, run a short test cycle and check for stable operation, leaks, vibration noise, and any recurring fault symptoms. Replacing the correct component helps restore predictable operation and reduces repeat service calls when the diagnosis is accurate. If multiple symptoms overlap, complete the diagnosis before ordering so the replacement targets the true root cause. Inspect surrounding wiring, tubing, and mounting points so the new part is not exposed to the same stress that damaged the old one. After a successful repair, technicians often note the symptom and test result to make future troubleshooting easier. Cleaning the area around the repair helps improve fitment and makes leak or vibration checks more reliable.