LG Dishwasher Stops Mid-Cycle: Causes and First Checks

You load the tub, press start, and an hour later the kitchen is quiet but the plates are still wet with grime and the tub holds standing water. A dishwasher that stops partway is trying to protect itself or your floor. Nearly every interruption comes from one of four places: power, the door, the water path, or a sensor that reported something it did not like.

Start with what the display says

Before touching anything, look at the panel and write down whatever it shows. LG dishwashers show short codes, and several of them are not faults at all. The power-failure indicator, PF, only tells you that electricity was interrupted and the cycle stopped as a result. A blink in the building, a tripped GFCI outlet or a flipped breaker is enough to cause it. Restart the cycle and see whether it finishes.

Other codes point somewhere more specific. AE and FE belong to the leakage and overfilling group: excess water, too much suds, an unlevel machine or a detected leak will all end a cycle. bE is the bubble error caused by too much soap or the wrong soap. OE means the tub did not drain completely. HE is a heater problem, and tE a temperature sensor problem. Each of those pages explains what the code means in plain words.

Why a running cycle gets cut short

The door is not telling the control it is closed

The control watches the door switch all the time. If the door is nudged during a cycle, if a dish handle pushes it open a hair, or if the latch is worn, the machine pauses. Opening the door mid-cycle on purpose also pauses it, and if the door is not shut firmly afterwards the cycle may simply sit there. A door that never feels solid when you close it is covered in more detail in our door-latch troubleshooting guide.

Water is not arriving or not leaving

A dishwasher waits for the right level before it washes. If the supply is slow, because the valve under the sink is partly closed or the inlet screen is clogged, the control gives up after a while. On the other side, a clogged drain screen, a kinked drain hose or a garbage disposal knockout plug that was never removed leaves water behind and ends the cycle with a drain complaint. If the machine never fills in the first place, read the fill-problem guide instead.

Suds and leak protection

Hand dish soap is the classic culprit. A small squirt left in the tub or a pre-rinse with liquid soap creates foam, the machine senses it, and it stops to protect the floor. Likewise, a unit that sits slightly out of level can shift water toward the base and trip the leak detection. The base tray holds a sensor for exactly this reason, and once it senses water the machine will not continue until the cause is cleared.

Heating and sensing

Wash water is heated and monitored. When the control cannot read temperature or cannot confirm that water is being warmed, it stops rather than run blind. On models with Dynamic Heat Dry, the codes F31 and F35 cover the dry-phase fan and temperature measurement. These need a technician, but knowing the code speeds up the visit.

Checks you can do from the outside

1. Confirm the machine has power. Look at the breaker, and if the dishwasher is on a plug under the sink, check any GFCI outlet nearby.
2. Press the door firmly shut until it clicks, then restart the cycle and watch whether it runs further than before.
3. Look at the racks. A tall pan, a spatula or a long utensil can drop through and block a spray arm or hold the door slightly ajar.
4. Open the door and check the drain screen at the tub floor. Remove food scraps that you can lift out by hand.
5. Make sure the water supply valve under the sink is fully open.
6. If you see foam, wait until the machine is cold, scoop out what you can, and run a short rinse with no soap at all.
7. Perform one controlled reset: switch the breaker off, wait a short while, switch it back on, and start a fresh cycle. Do this once, not repeatedly.

What not to do

Do not pull off the lower kick panel, disconnect hoses, or jumper the door switch to make the cycle continue. Do not keep restarting a unit that shows a leakage code, because water on the floor of a San Francisco flat can seep through to the unit below. If you notice a burning smell or see sparks, turn off the dishwasher at the breaker and leave it off.

When it is time to book a visit

Book when the same stop happens twice with a clean filter, level machine and correct soap, when a heater or temperature code appears, when water appears in the base, or when the control seems frozen. Our technician diagnoses first, tells you what failed, gives a written estimate, and repairs nothing until you approve it. Have the model number ready; the label is usually on the door edge or inside the tub rim. Learn how to find it in our model-number walkthrough, and see how we handle these machines on the LG dishwasher repair page. The lineup we work on is outlined in LG dishwashers, and a few typical examples are LDPH676 and LDNFC33L.

Frequently asked questions