Last Updated on October 4, 2026 by Umar Farooq
LG is the only dryer brand that tells you how blocked your duct is as a percentage, and that single habit makes its code list the most useful in the category. Where every other manufacturer prints a letter and leaves you to guess the severity, LG prints d80, d90 or d95 — and those digits are not model numbers or sequence numbers. They are the proportion of your exhaust run that the dryer has measured as obstructed.
That is worth knowing before anything else, because it reframes what an LG code is for. Most of this list is LG reporting on the ductwork behind the machine and the wiring in your wall, not on its own components. Of the 22 codes LG publishes definitions for, seven are about airflow or the exhaust, four are about the home’s electrical supply, and four are thermistor readings that a restricted vent produces. The dryer is mostly telling you about your house.
Every quotation below was read on LG’s own pages. Where LG publishes no cause — and for two codes it publishes nothing but “requires service” — this page says so.
LG puts a percentage on the blockage, and no other brand does
The d80 / d90 / d95 family comes from LG’s Flow Sense system, which watches airflow through the exhaust across the dryer’s life rather than sampling it once. LG’s wording is unambiguous about what the digits mean: “If you see a d90 or d95 error on your control panel, your dryer has detected a 90% or 95% blockage in the duct work, prompting immediate attention.” On the code list page LG frames the same family more broadly — “the airflow is restricted somewhere between the dryer and the outside exhaust exit.”
Compare that with the competition and the gap is embarrassing for everyone else. Whirlpool and Maytag give you AF, meaning restricted airflow, with no indication of whether that is a lightly furry lint screen or a duct packed solid. Samsung will give you a percentage, but only if you know to start a Vent Blockage test by hand. LG volunteers it during a normal cycle, unprompted, as a number.
There is a safety line attached to the high end of that family, and LG does not soften it: “Using a dryer with a severely restricted exhaust may create an unsafe environment.” A dryer showing d95 is not reporting an inconvenience. Stop running it, clear the duct, and then run it. The method is in how to clean a dryer vent.
9A5 is not a code. It is the word GAS
This is the best piece of writing on LG’s whole support library, and it exists because seven-segment displays cannot render every letter. An LG gas dryer with a supply problem shows something that reads as 9A5, and owners have spent real time searching a code that was never a code.
LG explains it plainly: “The 9A5 is not an error code, but rather a display message that allows the LG dryer to communicate a problem. The 9A5 display message is actually spelling ‘GAS,’ and that means the machine is not getting the proper gas supply.” Hold the panel up to a mirror and it stops being a mystery.
The fix matches the diagnosis. Make sure the gas supply valve is fully on, check that the supply line is connected and not kinked or bent, and if the dryer is newly installed and opening the valve changes nothing, LG’s instruction is to contact the installer rather than request service. A brand-new gas dryer that has never heated is an installation question, not a warranty one.
The LG dryer error codes table, grouped by what reported the fault
LG’s list is not organised, which is the one thing wrong with it — the codes arrive in roughly alphabetical order with ventilation, electrical, thermistor and steam faults interleaved. Grouping them by the system that produced the reading does more work, because it tells you where to stand before you know anything else.
The wording in the middle column is LG’s own. The right-hand column is this site’s reading of what the condition usually turns out to be, and is not LG’s.
| System | Codes | LG’s own wording | Usually |
|---|---|---|---|
| Exhaust airflow | d80 d90 d95 | “your dryer has detected a 90% or 95% blockage in the duct work, prompting immediate attention” | Exactly what it says. The duct, the transition hose, or the outside hood flap |
| Lint filter seated | F0 | “indicates that the lint filter should be checked to ensure that it is inserted properly” | A filter pushed in at an angle. LG notes the dryer “will stop working” until it seats |
| Humidity sensor | HS | “the dryer has detected an error with the HUMIDITY SENSOR” and it “will cause the dryer to run for 2 1/2 hours” | Residue on the sensor bars below the lint filter. Wipe them, do not replace them |
| Door | dE | “means that the dryer door is not completely closed” | The lint filter not pushed fully home, or clothing caught at the seal |
| Heater current | nP | “there is no current being detected at the heater. This normally indicates a problem with the electrical wiring in the home” | The supply, not the dryer. One of two 120 V legs missing |
| Power cord wiring | PS | “improper voltage with the power cord, which could be caused by the white and red wire connections being reversed on the dryer’s terminal block” | An installation fault, almost always on a recently moved or newly fitted machine |
| Power interruption | PF | “This usually happens after a power outage” | A reset condition. LG’s own fix is a factory reset, not a repair |
| Thermistor | tE1 tE3 | “a problem was detected with the dryer’s thermistor” | Needs service once a reset has been tried. LG names no component beyond the sensor |
| Thermistor, cold | tE2 | “normally during cold conditions” and “can occur during the SteamFresh, Steam Sanitary, or Steam Option, due to the duct cooling down too quickly” | Winter, and an exhaust flap stuck open letting outside air back in |
| Thermistor, range | tE4 | “indicates a problem with the thermistor causing the temperature in the unit to be out of range” | LG states this one “will require service to resolve” and gives no DIY step |
| Condensate drain | E13 | “the drain hose is kinked, crushed, clogged, or that the water in the sump is frozen” | Only possible on a Hybrid Condensing Dryer — LG says so explicitly |
| Drain pump | E21 | “indicates a drain pump error … when the tub drain process is taking longer than expected” | Only on washer-dryer combo units. Not a code a standalone dryer can show |
| Steam water supply | E05 | “there was a problem with the water supply used for the steam cycle” | The steam feeder, the inlet filter, or a frozen tap |
| Steam water level | Add | “indicates that there is a water supply error” — the steam feeder needs filling to the MAX line | Not a fault. LG also warns against distilled water in the feeder drawer |
| Dry function | dHE | “indicates the unit had a temporary dry function error” | A transient. LG’s fix is a 10-second unplug and a restart |
| Wi-Fi link | nE | “a problem with the connection between the control panel and the Wi-Fi module” | LG says service. Nothing here affects drying |
| Wi-Fi module | nF | “a problem with the Wi-Fi module on the unit” | As above. A dryer that dries perfectly can carry this |
| Gas supply | 9A5 | “actually spelling ‘GAS,’ and that means the machine is not getting the proper gas supply” | The valve, or the installation |
| Not a fault | CL | “not actually an error code, but rather an indication that the Child Lock feature is active” | Hold the CHILD LOCK key for 3 seconds |
| Not a fault | Check Filter | “not an error, it is designed to serve as a reminder to clean the lint filter before each use” | A reminder that clears when you select a cycle |
LG’s own reset for most of these is unusual and worth copying out exactly, because it is not an unplug-and-wait: power the dryer off and cut power at the plug or the breaker, then with the power still off, press and hold START/PAUSE for 5 seconds, then restore power. Holding a button on a dead machine looks pointless and is not — it discharges the control.
Two codes live only on the blinking-light page
LG publishes its dryer codes in two places, and the second one is not a duplicate. The alphanumeric list covers machines with a digital readout. A separate page covers models that report by blinking the cycle indicators instead, and it works as a filter tool rather than a list — LG’s instruction is “Filter the error codes by selecting the options that are blinking”, choosing from Clean Filter, Dry, Cool, Flow Sense, Control Lock and the five dryness levels.
Two codes appear on that page and nowhere else. nd is a no-drain condition: LG’s wording is that it comes “usually usually due to a clogged drain hose or debris filter, or a kinked or crushed vent hose” — the doubled word is LG’s, live on the page, and left here uncorrected so the quote matches what you will read. EE is the other, and it is the only code in LG’s dryer set that names a specific chip: “a problem with the main control board’s EEPROM (Electrically Erasable Programmable Read Only Memory)”, with a suggested 10-minute unplug before the board gets condemned.
If your dryer has a screen, you will never see either of these on the page Google sends you to. That is a documentation split, not a model difference, and it is the reason a code can be missing from a list that looks complete.
The list Google ranks for this is the one LG retired
Search for this topic and LG appears twice in the top three results. One of those pages has no codes on it at all.
The URL ending --20154543292888, which Google still lists under the title “LG Dryer – Error Code List(New)”, serves LG’s generic “Product Support: Help Library” page. No code table, no definitions, no d90, no thermistor — just the support landing page with a search box. The live article is the one at --20152310891742, titled simply “LG Dryer – Error Code List”, which Google ranks below its own retired replacement. Both were opened and compared on 3 October 2026.
This is the third time this site has caught LG doing it. Six help-library URLs were found retired-but-ranking while eleven of our articles still cited them, and four more were confirmed dead on the washer side — including the page that was the only published source for LG’s uE versus UE distinction, which no longer exists anywhere official. A search result is not proof that a page is alive. Open it.
Four LG displays that are not faults at all
Three of these are regularly searched as codes, and none of them is one. Knowing that in advance saves a power cycle and a call.
Check Filter is a schedule, not a sensor. LG’s wording: it is “designed to serve as a reminder to clean the lint filter before each use”, and it clears the moment you turn the cycle knob or press START/PAUSE. It carries no information about your actual filter.
CL is Child Lock, which disables the panel. On most models the release is a three-second hold of the key labelled CHILD LOCK. Wrinkle Care is the one that generates the most worried searches, because the drum keeps moving long after the cycle ended: LG documents it as rotating “for 10 seconds and then off for 6 minutes”, for up to three hours, and it stops the instant the door is opened. And a blinking Cooling light is just the end of the cycle — LG notes that “the cooling portion of the cycle does not begin until the last 5 minutes”.
That last one deserves a moment. A dryer that appears to have switched itself to a cool tumble for the final five minutes has not failed to heat. It has finished.
The LG readings that mean unplug it and stop
Most of this list is the dryer declining to proceed. These are the exceptions, and they come before the code.
- Any burning smell during a cycle on a dryer that is not brand new. LG’s position is that a new-machine odour from insulation and motor components “is normal with new appliances and will dissipate with use” — and that a persisting smell on a machine that is not new is a contact-support condition.
d95, ord90that returns after the duct has been cleared. LG states that a severely restricted exhaust “may create an unsafe environment”. Do not keep running it to see.- A
nPorPScode with any sign of heat, discolouration or looseness at the terminal block or the outlet. Switch off at the breaker. These are both wiring codes. - A breaker that trips again after being reset.
tE4, or any thermistor code that survives LG’s own power-off-and-hold reset twice at the same point in the cycle.
The last two are not stop-use conditions. They are the point where further checking costs more than the call.
A percentage belongs to your ductwork, not to your dryer
Read LG’s list end to end and a pattern emerges that the brand never states outright: most of these codes are about things outside the cabinet. The duct, the hood flap, the house wiring, the terminal block, the gas valve, the winter air coming back down an open vent. Only two codes in 22 name a component inside the machine, and one of those names a chip rather than a part you would buy.
So the strong position this page takes is that an LG code is a measurement of your installation. Treat d80 as the yearly reminder it functionally is, treat nP and PS as electrical work rather than appliance work, and treat tE2 as a seasonal symptom rather than a failure. The number LG gives you is the most honest diagnostic in the category — and acting on it is cheaper than every part you might otherwise buy. If the dryer still will not turn, why an LG dryer is not spinning is a different question with a different answer.
FAQ
What does d80, d90 or d95 mean on an LG dryer?
It is a measured blockage in the exhaust duct, and the digits are the percentage. LG’s own wording for the top two is that “your dryer has detected a 90% or 95% blockage in the duct work, prompting immediate attention”. Clear the lint filter, the transition hose, the duct run and the outside hood, in that order.
How do I reset an LG dryer to clear a code?
LG’s documented procedure is unusual: power the dryer off and cut power at the plug or the breaker, then while the dryer is still without power press and hold START/PAUSE for five seconds, then restore power and run a cycle. For PF specifically, LG describes this as a factory reset.
Why is my LG dryer running for two and a half hours?
If the display shows HS, that is the documented behaviour, not a fault in the timing. LG states that the humidity sensor error “will cause the dryer to run for 2 1/2 hours, which may seem as though the dryer is not drying”. Clean the sensor bars below the lint filter with a damp cloth and let them dry fully.
My LG dryer shows 9A5. What is that?
It is the word GAS, rendered on a seven-segment display, and it means the dryer is not getting a proper gas supply. Check that the shut-off valve is fully open and the supply line is not kinked. On a newly installed dryer, LG says contact the installer.
Is E13 or E21 possible on a normal LG dryer?
No. LG limits E13 to Hybrid Condensing Dryers and E21 to washer-dryer combo units. If either is on a standard vented LG dryer’s display, re-read the characters — a 13 and a b3 look similar on these panels.
My code is not on LG’s list. What now?
Check the blinking-light page as well as the alphanumeric one, because nd and EE exist only there. If it is on neither, record the exact characters and the point in the cycle where the dryer stopped, and do not accept a definition from a parts retailer — LG publishes nothing for several codes that other sites define confidently.
Which LG error code page should I trust?
The one at the URL ending --20152310891742. The page Google often ranks above it, titled “Error Code List(New)”, now serves LG’s generic support landing page with no codes on it.
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LG gives you a number where everyone else gives you a letter, and then puts most of the blame outside its own cabinet. Both of those are unusually honest for a manufacturer. Read the digits, clear the duct, and only then start thinking about parts.
Sources opened for this page: LG, Dryer — Error Code List · LG, Dryer — Blinking LED Error Codes · LG, Dryer — Understanding d90 and d95 Error Codes. All three read live on 3 October 2026. Note that lg.com returns 403 to many automated requests; the pages are live in a browser.
