WM3477HW is an earlier-generation LG compact all-in-one washer/dryer, discontinued according to LG’s own US product page. It predates the heat-pump technology used on later combo models like the WM3555HWA and WM9998HBA, and it is worth not assuming this older platform dries the same way — confirming the actual drying method on a specific unit’s rating plate matters more here than on the newer, more uniform heat-pump generation.
Owners of an older combo unit like this one are exactly the audience a discontinued listing leaves with nowhere to turn on LG’s own site. The core diagnostic approach still holds: separate a wash-phase fault from a dry-phase fault by checking whether the machine completes a wash cycle normally before drying begins, since the two halves of the cycle can fail independently even on an older platform.
Key Features
- 24-inch compact all-in-one washer/dryer
- Earlier-generation LG combo drying technology
- Compact footprint for closet installation
- Front-load design
Most Common Issues on This Model
OE drain fault
Extended dry times, common on this earlier combo generation
UE unbalance fault at spin
tE temperature sensor fault on the dry side