Washing MachinesTop Load
LG WT7405C* Washing Machine Manual
Setup, everyday use, maintenance and troubleshooting for the 5.3 cu. ft. top-load washer, with verified specifications.
- Capacity5.3 cu. ft.
- IMEF2.06
- Water factor4.3
- Est. yearly cost$137
About the LG WT7405C*
Model WT7405C* from LG is a 5.3 cu. ft. top-load washer that meets ENERGY STAR efficiency requirements. The cabinet is 27 in. wide.
As a high-efficiency top-loader, it fills with far less water than older agitator machines. You load from above without bending, and pausing to add a forgotten item is usually simple.
Its integrated modified energy factor (IMEF) is 2.06, 31% better than the federal minimum of 1.57, and its integrated water factor (IWF) is 4.3, 34% below the federal maximum.
Specifications
| Brand | LG |
|---|---|
| Model number | WT7405C* |
| Configuration | Top Load |
| Loading | Top Load |
| Drum capacity | 5.3 cu. ft. |
| Width | 27.0 in. |
| Integrated modified energy factor (IMEF) | 2.06 cu. ft./kWh/cycle |
| Federal minimum IMEF | 1.57 cu. ft./kWh/cycle |
| Integrated water factor (IWF) | 4.3 gal/cycle/cu. ft. |
| Federal maximum IWF | 6.5 gal/cycle/cu. ft. |
| Annual energy use | 220 kWh/yr |
| Annual water use | 6,672 gal/yr |
| Smart / connected features | No |
| Paired ENERGY STAR dryer available | No |
| ENERGY STAR Most Efficient | No |
Safety information
- Plug the washer into a grounded three-prong outlet on the circuit specified in the installation instructions. Do not use an extension cord or adapter, and do not remove the ground prong.
- Never wash or dry items that have been cleaned, soaked or spotted with gasoline, solvents, cooking oil or other flammable substances.
- Check inside the drum before every cycle — children and pets can climb into a washer. Do not let children play on or in the machine.
- Keep detergent pods and liquid detergent out of children's reach; pods are a poisoning hazard.
- Do not reach into the tub while it is moving. Wait for the lid lock to release and the drum to stop completely.
- Turn off the water supply valves if you will be away for an extended time, and inspect fill hoses regularly for bulges or cracks.
Installation and first-time setup
This model is 27 in. wide according to the certification data. Leave enough clearance above the cabinet for the lid to open fully. Leave about an inch on each side and several inches behind for hoses and airflow, and measure doorways on the delivery path.
- Remove packing material
Remove any shipping blocks or packing inside the tub and under the lid, plus all tape and protective film.
- Connect the water supply
Attach new hot and cold fill hoses (braided stainless steel is the most durable choice) with the supplied rubber washers. Hand-tighten, then add about two-thirds of a turn with pliers. Open the valves and check for drips.
- Route the drain hose
Hook the drain hose into a standpipe or laundry tub at the height range given in the installation instructions. Leave an air gap around the hose in the standpipe — sealing it tight can siphon water out of the washer.
- Level the washer
Adjust the front (and rear, if adjustable) legs until the washer is level side to side and front to back and does not rock diagonally. Tighten the lock nuts against the cabinet so the legs cannot drift.
- Run a test cycle
Run a short rinse-and-spin or cleaning cycle with the drum empty to flush the machine, then check the hose connections and the floor for leaks.
Using your washer
Loading
With 5.3 cu. ft. of drum space, this model can handle large loads such as bedding and towels. Load items loosely and evenly around the tub — do not wrap sheets around the center, and keep the load below the top of the tub. Mix large and small items so the load balances during spin.
Detergent
Use only high-efficiency (HE) detergent. Low-water washers need far less of it than older machines — follow the dose lines for your load size and water hardness, because excess suds leave residue and can interrupt the spin. Add pods directly to the empty tub before the clothes.
Choosing cycles and temperatures
- Use cold water for most loads. Heating water accounts for most of a washer's energy use, and modern detergents clean well in cold water.
- Choose the highest spin speed the fabric can tolerate; drier clothes mean a shorter, cheaper dryer cycle.
- Run full loads when you can — a full load uses far less energy and water per pound of laundry than several small ones.
Care and maintenance
| When | What to do |
|---|---|
| After each wash | Leave the lid open so the tub can dry out. |
| Every month | Run a cleaning cycle or the hottest empty cycle with a washer cleaner. Remove and rinse the detergent dispenser drawer or cups. |
| Every 6 months | Check the fill hoses for bulges, cracks or leaks at the fittings; clean the inlet screens if fill slows down. Recheck that the washer is level. |
| Every 5 years | Replace rubber fill hoses even if they look fine. |
| Before a long absence | Turn off both water valves and unplug the washer. In unheated spaces, have the machine winterized as the manual describes to prevent freeze damage. |
Troubleshooting
Most washer problems are caused by loading, detergent, hoses or leveling. Try the checks below first; if the display shows a code, look it up in the code table in your manufacturer's manual.
| Problem | Possible cause | What to try |
|---|---|---|
| Washer will not start | Door or lid not latched; control lock or delay start active; water valves closed; tripped breaker. | Close the door firmly, cancel the lock or delay, open both valves and check the breaker. |
| Will not drain or spin | Kinked or clogged drain hose; unbalanced load; excess suds. | Straighten or clear the hose, redistribute the load and cut back on detergent. |
| Shakes or walks during spin | Washer not level; unbalanced load; weak floor. | Re-level and tighten lock nuts, and redistribute heavy items evenly. |
| Musty odor | Lid kept closed; detergent residue; wet laundry left in the tub. | Run a cleaning cycle, use less HE detergent, remove wet laundry promptly and let the drum dry between uses. |
| Water on the floor | Loose or damaged fill hose; drain hose not secured in the standpipe; excess suds; door gasket damage. | Tighten or replace hoses, secure the drain hose, use HE detergent sparingly and inspect the gasket. |
| Clothes still very wet | Unbalanced load reduced the final spin; low spin speed selected; drain issue. | Redistribute the load and run a drain-and-spin cycle at a higher speed. |
| Cycle takes longer than expected | Load sensing, balancing attempts or added options; low water pressure. | Long cycles are normal for high-efficiency washers. Check that both valves are fully open. |
| Detergent residue on clothes | Too much detergent; overloaded drum; pods placed in the dispenser. | Use less detergent, load more loosely, and put pods in the drum first. |
Energy use and running costs
The LG WT7405C* is rated at 220 kWh per year under the U.S. Department of Energy test procedure. The figure covers the washer's own electricity plus the energy to heat its wash water, assuming an electric water heater. At $0.17 per kWh that is about $37.40 per year.
Rated water use is 6,672 gallons per year, about $100 at $0.015 per gallon for water and sewer. Combined, expect roughly $137 a year in washer running costs.
| Rating | This model | Federal standard |
|---|---|---|
| IMEF (higher is better) | 2.06 | 1.57 |
| IWF (lower is better) | 4.3 | 6.5 |
Washing in cold water, running full loads and using the highest safe spin speed are the three habits that cut laundry costs the most — the last one also shortens drying time.
Frequently asked questions
What is the drum capacity of the LG WT7405C*?
The LG WT7405C* has a 5.3 cubic-foot drum.
What are the dimensions of the LG WT7405C*?
The certification data lists a width of 27 in. Confirm the remaining dimensions with the manufacturer's specification sheet.
How much does it cost to run the LG WT7405C*?
It is rated at 220 kWh and 6,672 gallons of water per year — about $137 a year at $0.17/kWh and $0.015/gallon.
What does the IMEF rating of the LG WT7405C* mean?
IMEF (integrated modified energy factor) measures how many cubic feet of laundry the washer handles per kWh per cycle, counting machine energy, water heating, the energy needed to dry the load and standby power. This model scores 2.06 against a federal minimum of 1.57; higher is better.
Does the LG WT7405C* have steam or sanitize cycles?
is listed among its features.
Is there a matching ENERGY STAR dryer for the LG WT7405C*?
The certification record does not list a paired ENERGY STAR dryer for this washer.
Is the LG WT7405C* ENERGY STAR certified?
Yes. It appears on the ENERGY STAR certified clothes washers list, with a certification date of January 2022.
Sources and disclaimer
Specifications on this page come from the ENERGY STAR certified washing machines dataset published by the U.S. Environmental Protection Agency (record certified January 31, 2022), retrieved October 7, 2026.
The setup, operating, maintenance and troubleshooting guidance is written by ManualHarbor's editors for this specific product type and configuration. It is an independent guide — not a reproduction of the manufacturer's manual — and ManualHarbor is not affiliated with LG. Always follow the safety instructions, installation requirements and warranty terms supplied with your unit, and contact LG or an authorized service provider for warranty repairs and replacement parts.
Running-cost figures use assumed U.S. average utility prices and are estimates for comparison only. See our editorial methodology for details.
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