What dHE means (lg dhe error)
An lg dhe error appears only on an LG washer-dryer COMBO unit and indicates a dry-heater fault — the drying side is not heating as expected. The control watches the drying heater and its thermistor during the dry phase; a reading out of range raises dHE so the combo does not heat unsafely.
Symptoms to look for
The signs below help confirm you are dealing with this condition rather than a different fault on your LG Washer. You may see one of them or several together, and they can build up gradually or appear suddenly after a power event, a long door opening, or recent service.
- The display shows “dHE” during the drying phase
- The combo washes normally but will not dry
- Loads come out wet at the end of a wash-and-dry program
- The drying phase stalls or is skipped
Common causes
Several different faults can produce these symptoms. Working through the most likely causes in order helps separate a quick, owner-level check from a problem that needs trained service and the correct LG parts.
- Failed drying heater — the heating element does not warm
- Drying thermistor fault — the sensor reads out of range
- Condensing/airflow restriction — poor airflow trips the heater protection
- Wiring or control fault — the heater circuit is impaired
Troubleshooting steps you can try
Work through these checks in order before calling for service. Stop wherever you are unsure, or where high-voltage parts, gas, the sealed refrigeration system, or a heat-pump compressor are involved, and hand the rest to a qualified technician.
- Confirm the unit is a wash-and-dry combo and you selected a drying program.
- Power the combo off at the breaker for several minutes, then restore.
- Check the model guide for any condenser or airflow maintenance.
- If dHE persists, leave it for service to test the drying heater and thermistor.
Parts a technician may replace
Depending on what the diagnosis shows, a technician may inspect, test, or replace the drying heater element, drying thermistor, condensing system, and control board. The correct part for your LG Washer is matched from the model and serial number, and genuine LG components are fitted rather than generic substitutes so that performance, safety, and the appliance’s long working life are all protected. Confirming the failed part before ordering avoids replacing more than the fault actually requires.
When to call a technician
dHE needs a technician to test the drying heater, thermistor, and condensing system on the combo unit. When the fix calls for trained service, book a visit through our scheduling page and an experienced, qualified technician will diagnose and repair it. For manufacturer documentation and model lookup, see the manufacturer at lg.com/us.
Prevention and care
Regular care keeps this condition from returning on your LG Washer. Keep filters, vents, and the condenser or exhaust path clean, avoid overloading or blocking airflow, check that doors and seals close cleanly, and follow the LG maintenance guidance for your model. Because this unit relies on electronic control, protect it with a stable, correctly rated power supply and have any built-in or laundry installation done to LG specification so the control never sees an out-of-range condition. If a code appears, note exactly what was shown before you reset the appliance — that record helps the technician reach an accurate diagnosis and avoid replacing parts unnecessarily. Where stored food, a sealed refrigerant system, gas, or a safety lockout is involved, treat the condition as a reason to act quickly rather than wait.
Related help and LG resources
Browse other LG Washer diagnostics, read about professional LG Washer repair, look up your unit in the LG models reference, or the related tE heating error, or schedule a service visit. For LG manufacturer documentation and model lookup, visit the manufacturer at lg.com/us.
