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LG Dryer d80, d90 and d95 Codes: What They Mean

On LG dryers, d80, d90 and d95 are Flow Sense codes that mean the vent is about 80, 90 or 95% restricted. The dryer isn’t broken. Clean the lint screen, fix the duct behind the dryer and clear the vent, and the code goes away.

  • Flow Sense codes explained
  • Steps you can do yourself
  • Vent cleaning in Cedar Rapids
  • You approve the price first
Cleaning a dryer vent line with a rotary brush

Standard vent cleaning

$80 to $150

The usual fix for LG d80, d90 and d95 codes in Cedar Rapids.

The short answer

LG dryer codes d80, d90 and d95 mean the Flow Sense system measured the exhaust as about 80, 90 or 95% restricted. They are vent warnings, not dryer faults. Clean the lint screen, straighten the duct behind the dryer, clear the outside hood, and clean the full vent if airflow is still weak. At d95, stop using the dryer until the vent is clear.

d80

about 80% restricted

d90

about 90% restricted

d95

about 95%: stop using it

What d80, d90 and d95 mean

LG dryers with Flow Sense measure how freely air leaves the dryer. When the exhaust is restricted, the display shows how bad it is at the end of the cycle:

CodeVent restrictionWhat it means for you
d80About 80% restrictedThe dryer still works, but loads take longer and it runs hotter. Clean the vent soon.
d90About 90% restrictedDrying is slow and the dryer is working hard. Clean the vent now.
d95About 95% restrictedAirflow is nearly blocked. Stop using the dryer until the vent is cleared.

These codes are warnings about the vent, not faults in the dryer. Replacing a part won’t clear them.

How to clear an LG d80 code

  1. Clean the lint screen and wash it with warm soapy water.
  2. Pull the dryer out and check the duct. A crushed or kinked transition duct is one of the most common causes, especially on dryers sitting on pedestals.
  3. Check the outside hood. The flap should open fully while the dryer runs. In winter, clear snow and ice.
  4. Clean the full vent run if airflow at the hood is still weak. Long runs with several turns clog fastest.
  5. Run a normal load. Once airflow is back to normal, the code stops appearing at the end of the cycle.
Cleaning a dryer vent line with a rotary brush
Clearing the full vent run is what makes a d80 or d90 code go away.

If the code comes back with a clean vent

If the vent is clean and airflow at the hood is strong but the code keeps showing, the dryer may be reading airflow wrongly. The usual suspects are a lint-clogged blower housing inside the dryer, a thermistor giving false readings, or a vent run that is simply too long for the dryer. Under the 2024 building code Cedar Rapids uses, a standard dryer vent is limited to 35 feet, minus 5 feet for each 90-degree turn.

Lint inside the blower housing

Lint that got past the screen can pack the blower housing inside the cabinet.

What we test: the blower housing and wheel.

A faulty thermistor

Flow Sense relies on temperature readings. A failing thermistor can trigger airflow codes and also tE1 or tE2.

What we test: thermistor resistance against the spec.

A vent run that is too long

Some basement runs in older Cedar Rapids homes are past the code limit. They clog fast and restrict air even when clean.

What we test: the vent length and turns, and we suggest a shorter route if needed.

How the repair visit works

  1. You call and describe it. Tell us which code you see (d80, d90 or d95) and where your vent exits.
  2. We test before we replace. Alan Smith or Richard Bollinger meters the likely parts and checks the vent.
  3. You approve the price. We show you the failed part and give you one price. You approve the price before any work starts.
  4. We run a full cycle. Heat, airflow and drum checked before we leave.

Dryer not working?

Tell us the code and where your vent exits. Calls before noon usually get a same-day visit.

LG d80 code: more questions

Questions we hear around Cedar Rapids, Marion and Hiawatha.

Can I keep using my LG dryer with a d80 code?

For a short time, yes, but loads take longer and the dryer runs hotter. At d95, stop using it until the vent is cleared.

Why did my LG show d80 right after moving?

Almost always the duct behind the dryer got crushed or kinked during the move, or the new home’s vent is long or dirty.

Can I turn off the LG d80 warning?

Some LG models let you turn the Flow Sense display off in the settings, but that only hides the warning. The vent is still restricted.

How much does it cost to fix an LG d80 code?

Usually just a vent cleaning, $80 to $150 in Cedar Rapids. If a sensor or the blower housing is the cause, we give you the price before any work starts.

Clear your LG airflow code

Call before noon for a same-day visit in Cedar Rapids, Marion, Hiawatha or the nearby towns. You approve the price before any work starts, and OEM parts and labor carry a 90-day warranty. See our main dryer repair in Cedar Rapids page.