LG Dryer Error Codes Explained — d80, d90, d95, dE, tE1 and More

LG dryers keep their error vocabulary short, and one family of codes does most of the talking: d80, d90, and d95 — the Flow Sense system telling you your exhaust duct is 80, 90, or 95 percent blocked. If you take one thing from this guide: those codes are nearly always accurate, the fix is cleaning the duct, and ignoring them is how dryers become fire statistics.

The short code list cuts the other way too — plenty of real LG dryer failures throw no code at all. We cover both below. As always, trims differ by model year; the manual for your model number (sticker inside the door frame) is the authoritative list.

LG dryer error codes at a glance

The Flow Sense codes — d80, d90, d95

LG measures how hard the blower has to push. Rising back-pressure means lint is narrowing the duct, and the d-codes are the running tally. What cleaning actually means here — and where most people stop short:

1. The lint screen — every load, but the screen alone never causes a d-code.
2. The transition duct — the flexible section behind the dryer. Disconnect it and pull the lint out of both ends. Replace plastic or foil duct with semi-rigid metal if you find it; crushed foil duct behind a pushed-back dryer is its own blockage.
3. The wall run to the outside — this is the part that actually triggers d90/d95. A vent brush kit reaches most runs; long or roof-exit runs may want a pro cleaning.
4. The exterior flap — lint mats behind it, and a flap that won't swing open freely chokes the whole system.

After cleaning, run a timed dry and confirm strong, warm airflow at the outside vent. A d-code that returns within weeks on a clean duct usually means the run itself is too long or has too many elbows — a venting problem, not a dryer problem.

Take d95 seriously. A near-fully blocked vent traps heat with lint — the textbook dryer fire setup. This is the one code on this page we'd call urgent.

dE, PS, PF, CL — the quick checks

dE means the door circuit reads open: clear the latch path of fabric, close firmly, and restart. Persistent dE with a firmly latched door is a door switch on its way out — small part, but it's a panel-off job. PS is specific and useful: electric dryers need 240 volts across a double breaker, and when one leg trips, you get a spinning drum with weak or no heat. Flip the breaker fully OFF, then ON (a half-tripped double breaker can look normal). PS again after a clean reset = have the outlet and breaker checked. PF just records a power interruption — restart. CL is the child lock, not a fault.

The no-code failures (most LG dryer problems)

Here's the honest part: the most common LG dryer failures don't produce a code. A blown thermal fuse, a failed heating element, a worn gas igniter — the dryer just tumbles cold, silently. The diagnostic order that actually works: breaker first (see PS above), then the vent (heat with nowhere to go is what blows thermal fuses), then live testing of the heat circuit — which is multimeter work inside the cabinet and the point where you book a dryer repair. The full walk-through is in our dryer not heating guide.

tE1 / tE2 and EE round out the call-a-tech list: sensor circuits and the control board need testing, not guessing — thermistors are cheap, boards are not, and swapping the wrong one is the expensive way to find out which.

Keeping Flow Sense quiet: vent maintenance that actually works

The d-codes are a maintenance meter, and you control the rate it climbs:

• Lint screen every load — and wash it with dish soap every few months. Dryer-sheet and fabric-softener residue builds an invisible film; if water beads on the screen instead of running through, airflow is paying for it.
• Transition duct yearly — the flexible piece behind the dryer. While you're back there, make sure the dryer isn't pushed so far back it crushes the duct flat, and replace plastic or thin foil duct with semi-rigid metal.
• Full run every year or two — more often with pets, big households, or long runs. A $20 vent brush kit handles most; roof exits and 20-foot runs are worth a professional cleaning.
• Watch the dry times — Flow Sense warns at 80% blocked, but your laundry noticed at 40%. Loads taking noticeably longer than they used to is the d-code's early-warning system, no display required. Our guide on a dryer that takes too long to dry covers that diagnosis.

Gas vs. electric LG dryers

The code list is the same for both, but the no-code heat failures differ. Electric models depend on a 240-volt supply — which is why PS exists — and fail at the heating element or thermal cut-offs. Gas models plug into a normal outlet (PS doesn't apply) and fail at the igniter or gas valve coils: the classic symptom is a drum that tumbles while the igniter glows and clicks but no flame catches. Either way the testing happens inside the cabinet with the power connected — gas adds a live fuel line to the picture — so the no-code heat failure is the textbook case for booking a visit rather than parts-guessing.

Finding the exact list for your model

LG's dryer codes are consistent across recent generations, but trims differ in which sensors they carry, and some models report faults through LG's ThinQ app with plain-language descriptions alongside the panel code. The authoritative list for your machine is the troubleshooting section of its manual — LG publishes them online, searchable by the model number on the sticker inside the door frame. Photograph that sticker while you're there: the full model number is the first thing any parts counter or technician needs, and reading it to us when you book is how the right parts end up on the truck for a single-visit fix.

What an LG dryer repair costs

Dryer repairs run $100–$300 — thermal fuses, door switches, and thermistors at the friendly end, heating elements and boards toward the top. The $75 service call applies toward the repair, you approve a written quote before any work happens, and every repair carries a 90-day parts-and-labor warranty. If a d-code brought you here, have the duct cleaned first — we'd rather not charge you to diagnose a vent.