LG Heat Pump Dryer Leaking or Full of Water: What to Check

A heat pump or hybrid condensing dryer does not push moist air through a vent to the outside. It cools the air, wrings the moisture out as liquid and then has to dispose of that liquid. When something along that path slows down, the water shows up as a puddle under the cabinet, a reservoir that keeps filling, a hose that sputters, or clothes that finish the cycle cooler and clammier than they should.

This is a common call from San Francisco flats and condos where a ventless dryer was chosen precisely because there is no exterior wall to cut through. The same stacked closets that make that choice sensible also make leaks hard to spot, because the first sign is often a damp patch on a hallway floor or a stain beneath a laundry closet door.

Where the water is supposed to go

Ventless LG dryers handle condensate in one of two ways, depending on how the unit was set up. Some collect the water in a container that the owner empties, and others push it out through a drain hose to a standpipe, laundry sink or stacked washer drain. The dryer sends the water along with a small pump, so the hose can rise a little before it falls, but it still needs a clear path and a sensible route.

Knowing which setup you have changes everything that follows. A full container is simply a container that has not been emptied, while a hose that spits water onto the floor is a drainage fault. Check the back panel and the drain fitting before you decide which problem you are looking at.

Likely causes, from simple to involved

• A kinked or crushed hose. Pushing the dryer back against the wall after cleaning is the classic way to fold the drain hose over on itself.
• A blocked hose or debris filter. Lint that gets past the main filter can settle in the condensate path and slow the flow until it backs up.
• A hose set too high or connected badly. If the outlet sits well above the dryer or the fitting is loose, water can run back or leak at the joint.
• Frozen condensate. A dryer in a cold garage or an unheated utility room can end up with ice in the sump or the hose, which stops drainage until it melts.
• A full or poorly seated container. If the tank is not pushed in fully, the dryer may refuse to start or may spill when the drawer is pulled.
• A worn drain pump or a failed level sensor. When the checks above come back clean, a technician looks at the pump that moves the water and at the sensor that tells the dryer it is full.
• A heat pump system that is not removing moisture well. Wet laundry with an otherwise empty tank points toward a condensing problem rather than a drainage one.

What the display may be telling you

Two verified LG messages are worth writing down before you touch anything. On hybrid condensing dryers, the LG dryer E13 code points to a drain hose that is kinked, crushed or clogged, or to frozen water in the sump. The LG dryer nd code means no drain, which usually traces to a clogged drain hose or debris filter, or a kinked vent hose. Neither one tells you the part to replace, but each narrows the search considerably.

Checks you can safely do from the outside

1. Stop the cycle and unplug the dryer or switch off its breaker. Let the cabinet sit for a short while.
2. If your unit uses a container, slide it out, empty it into a sink, and push it back until it seats firmly.
3. Clean the lint filter and look at the surface for a film. A coated filter slows everything downstream.
4. Look at the visible length of the drain hose behind the dryer. Straighten any bends you can see without pulling the machine out violently.
5. Check that the end of the hose still sits where it is meant to, in the standpipe or sink trap, and has not slipped out.
6. Note the exact wording of any code, then run one short test cycle and watch whether water appears.

That is the limit of what an owner should do. Opening the cabinet, tracing the heat pump circuit or reaching into the sump belongs to a technician, because the sealed system and the wiring around the pump are not places for a quick look.

What not to do

• Do not keep running cycles while water is leaking. It spreads into subflooring and can reach a neighbor’s ceiling in a multi-unit building.
• Do not pour hot water into the hose or sump to chase a clog.
• Do not bend the hose sharply to keep it out of the way. Tight folds are the usual cause of the problem.
• Do not unplug and replug the dryer repeatedly hoping the code clears. One controlled power reset is reasonable, more than that hides a pattern we need to see.

When it is time to book

Book a visit when the same code returns after you have cleaned and straightened everything you can reach, when water appears with no obvious blockage, when the clothes come out damp every time, or when you smell something hot. We diagnose before any repair, give you a written estimate and do nothing without your approval. Tell us whether your dryer sits in a closet, a garage or beside a washer, because the location affects both the likely cause and how we plan the visit.

Have the model label ready. On a ventless LG dryer it is usually inside the door opening. The three ventless electric models are the LG DLHC1455 repair, the LG DLHC3602 repair and the LG DLHC6702 repair pages, and each of them is described on its own page. For the wider picture, see our LG dryer repair service and the LG Dryers guide.

Frequently asked questions