Stacked laundry saves floor space, which is why it's standard in so many Las Vegas condos, apartments and townhomes, from the high-rises near the Strip to newer developments in Spring Valley and Enterprise. But a washer and dryer stacked in a closet are harder to service than a side-by-side pair in a laundry room. This article covers what's different about stacked units, what tends to go wrong, and how to make the repair go smoothly.
Two Kinds of Stack
Unitized laundry centers
These are one appliance: a top-load or front-load washer below and a dryer above, built into a single frame and usually sold in 24-inch or 27-inch widths. Controls may be shared. If one half fails badly, you may have to replace the whole unit.
Stacked front-load pairs
A front-load washer and a matching dryer, joined with a stacking kit from the manufacturer. They are separate appliances that happen to be stacked. Either one can be repaired or replaced independently, as long as the new unit is compatible with the other.
Some compact 24-inch dryers in condos are ventless, using a condenser or heat pump to remove moisture instead of venting air outside. They have their own maintenance needs, described below.
Common Problems
On the washer
- Vibration and walking. Amplified by the height of a stack. Causes include an unlevel floor, missing shipping bolts, worn shock absorbers, or an unbalanced load.
- Drain problems. A clogged pump filter or drain hose.
- Door lock faults on front-loaders.
- Leaks from the door boot, hoses or pump.
- Slow fill from scaled inlet screens, a common issue with the valley's very hard water.
For more on how front-load and top-load washers fail, see our comparison of front-load vs top-load washer repairs.
On the dryer
- No heat or slow drying. Usually a heating element, gas igniter or valve coil, thermal fuse or thermostat, often triggered by a restricted vent.
- Squealing or thumping. Drum rollers, idler pulley or belt.
- Won't start. Door switch, thermal fuse, or control.
Our article on gas vs electric dryer repair explains how those heating systems differ.
On ventless dryers
- Clogged lint filters, including a second filter on many models.
- A dirty condenser, which some models require you to clean by hand.
- A full water container or a blocked condensate drain.
- Longer drying times are normal for ventless designs, but a sudden increase usually means a maintenance issue.
Taming Vibration on Upper Floors
A stack on a second floor or in an upstairs condo transmits more vibration to the rooms around and below it than one on a concrete slab. A few things make a real difference:
- Level carefully. Adjust the washer's feet so all four carry weight, then tighten the lock nuts. A washer that rocks even slightly will shake the whole stack.
- Confirm the stacking kit. Use the kit the manufacturer specifies for your models, and check that its brackets or locking clips are fully engaged.
- Remove shipping bolts on a new or relocated front-loader before the first cycle.
- Use the right spin speed for bulky items, and wash heavy items such as rugs or comforters with a few towels to balance the load.
- Replace worn dampers or springs. If shaking gets worse over time, the suspension is often the cause.
Anti-vibration pads can help on some floors, but check your manual first, since some manufacturers advise against anything that raises the washer or lets it slide.
Venting and Airflow in Closets
Stacked dryers often vent through long runs inside walls or ceilings, especially in condos and two-story homes. Those runs collect lint, and a transition duct squeezed behind the stack can be crushed flat. The NFPA and the U.S. Fire Administration name failure to clean as a leading factor in dryer fires, so vent maintenance matters. In Las Vegas, desert dust at exterior vent hoods and the summer heat in closets add to the problem.
A closet also needs airflow for the dryer to pull in. Many manufacturers specify minimum openings in closet doors, such as louvered doors, and clearances around the units. Check your installation manual.
Some condo buildings handle vent cleaning through the HOA, especially for shared or roof vents. Ask your management company before scheduling cleaning.
Safe Checks You Can Do
- Clean the dryer lint screen and any secondary filters every load.
- Check the vent hood outside or on the roof, if you can safely reach it, for strong airflow while the dryer runs.
- Clean the washer's pump filter if it has one, with towels down.
- Check the inlet screens with the water turned off.
- Check that the washer is level and the stacking kit is secure.
- Look up error codes by model number.
Don't try to pull out or unstack the units yourself. A stacked pair is top-heavy, and lifting a dryer off a washer is a two-person job at minimum. Unplug both units before moving them, close the water valves, and on gas dryers close the gas valve and leave the gas connection to a professional.
What a Technician Needs
To make a repair go smoothly:
- Clear the path to the laundry closet and remove items stored on or around the stack.
- Have the model and serial numbers for both units ready.
- Know where the water, power and gas shutoffs are.
- Tell us about building access rules, such as elevator reservations, parking or HOA work hours.
Many repairs, such as dryer heating parts or washer pumps, require pulling the stack out of the closet. Some require unstacking. Our technicians plan for that on stacked units.
Repair or Replace?
On a stacked pair, repair or replace each unit on its own merits. On a laundry center, consider both halves: a major failure on one half of an older unit may make full replacement more practical, because the other half is the same age. If you replace, measure the closet carefully, including the door opening, and confirm the electrical, gas and venting requirements of the new unit.
Getting Help
Our washer repair and dryer repair services handle stacked pairs and laundry centers from all major brands, in condos, apartments and homes. Same-day appointments are available when booked early, and repairs carry our 90-day parts and 30-day labor warranty.