Error code
Dryer error code d90
LG dryer error code d90: This is one of the more useful things LG does. Every spelling LG publishes for it, which machines can raise it, and what to do next.
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What we can confirm
Code d90, from the manufacturer's own documentation
A code is only meaningful together with the machine showing it — the same digits mean different things on different equipment.
The code
d90
This is one of the more useful things LG does. The dryer measures the restriction in its own duct and displays a number: d80, d90 and d95 are increasing degrees of blocked, and by the time it says d95 the machine is fighting for air. In this city that number climbs every year because the outside vent flap corrodes half open and lint packs behind it. Acting on it is cheap; ignoring it is how a dryer overheats and how a laundry fire starts.
or call (305) 419-0291
What it narrows down to
The machine is measuring how blocked its own exhaust is, and reporting a percentage
Diagnostic
From $95, credited to the repair
On the same appliance
What else belongs to the dryers
On this make a code belongs to the appliance rather than to a product line. These are the other conditions this machine can display, and the models that can show this one — a display often has more than one thing to say, and the model number decides what any of it costs to put right.
Other codes this appliance can display
The cycle was interrupted by the power going away
Not an error — the panel is locked
The machine has no numbers to show you, so it reports by which lights blink
The sensor that measures the dryer's heat is out of range
The machine is tumbling but no power is reaching the heat
The machine cannot confirm the door is closed
The drum is not turning when the machine asks it to
A ventless dryer cannot get rid of the water it has taken out of the load
The sensor that decides when the load is dry is not reporting
A machine with a steam cycle cannot get the water it needs
The dryer reports by which indicator lights blink rather than by a number
The same digits mean different things on different equipment. Search the full code list
In more detail
About Dryer error code d90
What d90 means on this make
This is one of the more useful things LG does. The dryer measures the restriction in its own duct and displays a number: d80, d90 and d95 are increasing degrees of blocked, and by the time it says d95 the machine is fighting for air. In this city that number climbs every year because the outside vent flap corrodes half open and lint packs behind it. Acting on it is cheap; ignoring it is how a dryer overheats and how a laundry fire starts.
The other ways LG prints this one
d90 · d95 · d80
LG publishes a condition and then every string that can stand for it, and which one your machine shows depends on the panel it was built with — OE, E03 and E21 are one condition on a washer, and Er dS, F dS and r dS are one sensor on different evaporators. They are one page here, so whichever of them you searched for, this is the right page.
Where this appears, and why not to clear it
On the appliance's own display. LG reports errors two ways: machines with a digital display show a code, and the laundry machines without one blink their indicator lights instead. Both are published by the maker and both are on this site. Photograph what the panel shows before cutting the power. On a refrigerator you can also force the last code back onto the display by holding Freezer Temperature and Express Frz together for three seconds — LG documents that, and it is the one thing that makes a first visit more useful. A code that has been reset is information a technician no longer has.
What to do about it
- Clean the lint screen properly, including the slot it sits in.
- Pull the machine out and disconnect the duct. Check the whole run, not just the first foot.
- Go outside and look at the vent hood. If the flap does not move freely, that is the blockage.
- If the run is long or goes through a ceiling, book a vent cleaning — it is a service, not a repair.
Where this goes next
The job this usually becomes is diagnostic visit, and that page carries a starting figure and the reasons that move it. If it turns out to be nothing — and on this make a real share of these are modes, reminders and settings rather than problems — the visit ends there and you pay the diagnostic and nothing else, or call (305) 419-0291 and describe what the panel is doing before booking anything.
This article is based on:
- Official manufacturer documentation
- Internal repair procedures
- Technician repair history
- Company quality standards