Kenmore Dryer d80 Error Code: Exhaust Vent About 80% Blocked (Meaning, Causes, Fixes)

What the code means

Kenmore's Use & Care Guide for its 796.8139 dryers lists d80, d90 and d95 together under the CHECK VENT warning: the ductwork is about 80% to 95% blocked, and the code only stays on the display for 2 hours. The guide gives several possible causes for that row, each with its own advice: a vent run that's too long or has too many turns (install a shorter or straighter run), partial blockage from lint or other objects (the duct should be checked and cleaned immediately; the dryer can still run, but drying takes longer and uses more energy), and a blocked house exhaust system (don't use the dryer until the exhaust has been cleaned or repaired, because using it with a severely restricted exhaust can cause a fire or other property damage). It also says this warning is not a dryer failure and isn't covered by the warranty. The Sears full service manual for Kenmore 796.6155#.610 and 796.7155#.610 dryers, as quoted by MyPros+, describes d80 the same way and starts diagnosis by checking the outside vent while the dryer runs and checking the exhaust system for restrictions and damage. d80 appears on Kenmore dryers built by LG, whose model numbers start with 796 (per the PartSelect prefix chart), and LG lists d75, d80, d90 and d95 as about 75%, 80%, 90% and 95% exhaust restriction. So d80 is an early warning: d90 and d95 are the more severe levels. LG also notes that on gas dryers a d80 can point to a lack of gas reaching the dryer. Kenmore dryers made by Whirlpool (model numbers starting with 110) or Frigidaire (417) don't use this code.

Likely causes

• Lint built up in the duct behind the dryer or in the house vent run, the partial blockage Kenmore's guide names
• A clogged, damaged or stuck outside vent hood, or a damper flap that doesn't open fully
• A crushed, kinked or damaged transition duct, often from pushing the dryer back against the wall
• A vent run that's too long or has too many elbows, which Kenmore says to replace with a shorter or straighter run
• A dirty lint screen, the first thing LG lists to check on these LG-built dryers
• On a gas dryer, low or no gas supply, which LG says can also show up as d80

Safe DIY checks

1. Clean the lint screen and vacuum lint out of the screen opening.
2. Run the dryer and go outside to feel the vent hood. Kenmore's guide says the airflow should be strong. Weak or no airflow means the restriction is in the duct or the hood.
3. Clear the outside vent hood and the area around it, and make sure the flap opens freely and isn't packed with lint, nest material or damage.
4. Unplug the dryer (and on a gas model, turn off the dryer's gas valve before moving it), pull it out carefully, and disconnect the duct from the back. Check the hose and wall duct for lint, kinks and crushed sections, as LG's d80 steps describe.
5. Brush or vacuum lint out of the hose and wall duct. For a long run, a drill-powered vent brush reaches deeper.
6. Replace any crushed, plastic or foil transition duct with 4-inch rigid or semi-rigid metal duct, and push the dryer back without flattening it.
7. On a gas dryer, confirm the house gas shutoff and the dryer's gas shutoff valve are both fully open.
8. Run a load. LG says the code clears on its own once airflow is restored, though the sensor can take several cycles; LG's manual says to call for service if the warning is still active after five cycles once the restriction is cleared.

Parts that commonly fix it

Always match the part number to your exact model.

Related codes

• d90 / D90 Kenmore Dryer d90 / D90
• F01 / F-01 / F:01 Kenmore Dryer F01 / F-01 / F:01
• PF Kenmore Dryer PF
• E61 Frigidaire Dryer E61
• E64 Frigidaire Dryer E64

All Kenmore codes →

Sources

1. Kenmore 796.8139 dryer Use & Care Guide (Spanish edition, ManualsLib p. 36): d80, d90, d95 = ductwork 80%-95% blocked, shown 2 hours; long or bent run, partial lint blockage, blocked house exhaust; not a dryer failure
2. MyPros+: Kenmore dryer d80, citing the Sears full service manual for 796.6155#.610 / 796.7155#.610, p. 22 (duct work about 80%-95% blocked; check the outside vent and exhaust system)
3. LG USA Support: LG dryer error code list (d75, d80, d90, d95 = 75%, 80%, 90%, 95% exhaust restriction; d80 on gas dryers can mean lack of gas)
4. LG Canada: Clearing the d80 notification code (unplug, inspect hose and wall vent, vent cap, drill brush, clears automatically)
5. LG dryer owner's manual, Troubleshooting (d80 not a dryer failure; call service if the warning stays active more than five cycles after clearing)
6. PartSelect: Sears and Kenmore model prefix chart (110 Whirlpool, 417 Frigidaire, 796 LG)