LG Dryer Stops Mid Cycle — What’s Happening
When an LG dryer stops mid-cycle without finishing, it typically shuts off because the control board thinks the load is dry or because power was interrupted. LG ties this symptom most often to dirty moisture sensors covered in fabric-softener residue or lint, small loads that don’t make contact with the sensors, or a loss of power from a tripped breaker or loose plug. If the display shows a code like PS or nP, the dryer has detected a power or voltage problem. If you see d75, d80, d90, d95, or multiple Flow Sense bars, the exhaust duct is restricted and the dryer is protecting itself from overheating.
In most cases the dryer will power back on after it stops, which LG treats as an abnormal shutdown rather than a hard component failure. If the unit won’t restart at all, the problem is usually in the home electrical supply or requires service.
Most Likely Causes
- Dirty or film-covered moisture sensors Fabric-softener residue, lint, or other buildup on the two metal sensor bars below the lint filter causes the control to misread the load as dry and stop the cycle early.
- Small or light load A load with only one or two items does not brush the drum moisture sensors enough for the control to continue a sensor-based cycle.
- Power interruption A loose plug, tripped breaker, switched outlet, or other supply interruption cuts power mid-cycle and the dryer shuts down.
- Restricted exhaust duct or lint buildup Lint accumulation, crushed ducting, or damaged exhaust sections trigger Flow Sense warnings and can cause the dryer to stop to prevent overheating.
- Incorrect household voltage or wiring fault If the display shows PS or nP, the dryer has detected improper voltage at the power cord or no current at the heater due to home wiring problems.
How to Diagnose and Fix
- Check that the dryer is fully plugged in, the outlet is live, any wall switch controlling the outlet is on, and the circuit breaker has not tripped.
- Try to restart the dryer after the shutdown to confirm it powers back on, which indicates an abnormal shutdown rather than a complete failure.
- Clean the two metal moisture sensor bars located just below the lint filter using a damp rag or paper towel to remove any residue or film.
- Inspect the load size and add a few items if the load is very small, or switch to a timed cycle like Time Dry or Speed Dry instead of a sensor-based cycle.
- Pull the dryer away from the wall and inspect the rear exhaust duct for lint buildup, kinks, crushing, or blockage, then clean or straighten the duct and retest.
- If the dryer will not restart, unplug it, hold the START/PAUSE button for 5 seconds while unplugged, restore power, and retest.
- If the display shows PS or nP, verify that the home electrical supply is 240 volts and that the white and red wires are correctly connected on the terminal block, then retest.
- If the dryer continues to stop mid-cycle after verifying power, cleaning the sensors, and clearing the exhaust, service is required.
Parts You Might Need
| Part | Notes |
|---|---|
| Moisture sensor bar assembly | Amazon | The two metal bars mounted below the lint filter, if cleaning does not restore proper sensing. |
| Dryer vent cleaning kit or rigid aluminum duct | Amazon | To clear lint from the exhaust path or replace crushed or damaged duct sections. |
Related LG Error Codes
Seeing a code on the display? These match this problem:
- Lg Dryer Add error code
- Lg Dryer D75 error code
- Lg Dryer D80 error code
- Lg Dryer D90 error code
- Lg Dryer D95 error code
- Lg Dryer De error code
- Lg Dryer E00 error code
- Lg Dryer E1 error code
- Lg Dryer E13 error code
- Lg Dryer E4 error code
- Lg Dryer F0 error code
- Lg Dryer He error code
When to Call a Pro
Call a pro if the dryer will not power on after checking the breaker and outlet, if it shows PS or nP and you are not comfortable verifying 240-volt wiring at the terminal block, or if it continues to stop mid-cycle after you have cleaned the moisture sensors, corrected the load size, and cleared the exhaust duct. Also call for service if the unit displays an error code you cannot clear or if you suspect a control board or wiring fault inside the cabinet.