Basement laundry area with a top-load washer and dryer next to utility equipment
7 components covered

Field manual · Washer

Samsung WA45T3400-series top-load washer: quick sheet

Covers: WA45T3400AW (white), WA45T3400AP (platinum) and WA45T3400AV (black stainless), 4.5 cu ft top-loaders with Active WaterJet, about 2020 onward (Samsung product, support and spec pages; T = 2020).

Single sourceBrands: Samsung7 components

A 27-inch impeller top-loader (Samsung lists the agitator type as impeller) with a built-in water jet for pre-treating at the sink area. It is a common builder and big-box model. Deep diagnostics: see the Samsung top-load washer (WA, impeller / VRT) field service manual.

Safety first

  • Unplug the washer and shut both water taps before opening any panel.
  • Drain the tub (and the pump filter on front-loaders) into a shallow pan before pulling hoses; water may be hot.
  • Live-voltage checks at the control or valve connectors are caution work: insulated probes, one hand, no jewelry.
  • Get help lifting: these cabinets weigh well over 100 lb on the spec sheets.
  • Check Samsung recall lookups for older WA top-loaders by serial before quoting; this family is newer than the 2016 recall group but customers often ask.

How it works

The lid locks, the control senses the load, then fills to a level read by the pressure sensor. The low-profile impeller moves the load; there is no center agitator.

For spin, the drive couples the basket and ramps to a 700 rpm top speed. The control watches tub motion; excess motion stops or slows spin and shows an unbalance code.

The drain pump empties the tub; on this family a repair thread notes the debris trap is part of the pump itself rather than a front-access filter, so a no-drain often means pulling the pump.

Components & tests

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Official manufacturer documentation

Always confirm values against the tech sheet for the exact model.

OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work. © 2026 OnCall Tech. Original content; not a reproduction of any manufacturer document.Generic part photos (not of this brand): Basement laundry area with a top-load washer and dryer next to utility equipment by Đỗ Huy Hoàng, Pexels License

Diagnostic guides for this appliance

Component test · Washer

How to test a drain pump (washer and dishwasher)

Most drain pumps are small synchronous motors. Clear the filter and impeller first, then test the winding and the voltage. Published resistance values vary a lot by brand, so use the tech sheet for the number.

6 steps ~40 minmoderate
Component test · Washer

How to test a universal (brushed) motor and its carbon brushes

Universal motors run on AC or DC through carbon brushes that rub on a commutator. Brushes wear out and are the most common failure. Check brush length and the commutator, then test the field and armature with a meter.

6 steps ~60 minmoderate
Component test · Washer

How to test a top-load washer lid switch / lid lock

Older top-loaders use a simple lid switch; most newer ones use a lid lock with a switch and a locking solenoid or motor. Test the switch contacts with the lid open and closed, and check the lock coil if there is one.

6 steps ~20 minmoderate

Other washers manuals

Manual · Washer

Fisher & Paykel SmartDrive top-load washer: field service manual

Fisher & Paykel SmartDrive / Intuitive / Ecosmart top-loaders (e.g. GWL, WL, WA families). Older units report faults by beep pattern plus a binary pattern on the cycle LEDs; newer units have a numeric display.

6 components3 common failuresFisher & Paykel
Manual · Washer

Electrolux premium appliances: what differs from Frigidaire

Electrolux-branded front-load washers and dryers, French-door refrigerators and dishwashers sold in the US. Use together with the Frigidaire / Electrolux manuals in the washer, dryer, refrigerator and dishwasher sections.

2 components2 common failuresElectrolux
Manual · Washer

Compact & budget portable washers: field service manual

Portable and compact top-load washers (about 1.6-2.0 cu ft) that connect to a sink with a quick-connect adapter, plus simple twin-tub units.

3 components3 common failuresMagic Chef, Danby, Insignia, Other compact brands
Samsung WA45T3400-series top-load washer: quick sheet · OnCall Tech