Dryer Error Codes Explained – Mount Prospect & Park Ridge

Why Your Dryer Shows Error Codes

When a dryer suddenly flashes an unfamiliar error code, it isn’t just a random signal; it’s your appliance warning you about airflow problems, blocked ducts, or overheating. These dryer error codes often point directly to issues with the dryer vent system, the exhaust system, or even the dryer’s internal components. Some models may display secondary alerts like a child lock symbol alongside the code, which can confuse homeowners trying to troubleshoot.

At Dryer Vent Wizard of Mount Prospect and Park Ridge, we see these problems often. In homes across the area, seasonal changes create higher risks for lint accumulation, clogged ducts, and even nests inside outside vents. If the error persists after basic checks or resets, it’s important to request service from trained professionals. Recognizing what your dryer is telling you, and knowing when to schedule professional dryer vent cleaning, is critical for protecting your home and appliance.

Common Dryer Codes by Brand

Each manufacturer uses its own set of error codes to signal airflow restrictions, overheating, or other vent-related issues. Some are simple, like a “Clean Filter” reminder, while others, such as “C90” or “d95”, are more technical and require professional interpretation. These messages are your dryer’s way of warning that something is wrong within the vent system or exhaust vent.

Below is a list of the most common dryer error codes tied to airflow and venting problems that homeowners in Mount Prospect and Park Ridge may encounter.

LG Dryer Codes

d75, d80, d90, d95 – Show 75–95% blockage in the vent system. Stop using and schedule professional cleaning.
tE1 / tE2 / tE3 – Thermistor faults, often tied to overheating from clogged vents.
FO – Lint filter not properly inserted.
HS – Humidity sensor fault.
Child lock – Prevents the dryer from starting until deactivated.

Tip: For more details, check your owner’s manual or search for “information about your LG” in the manufacturer’s help section.

Samsung Dryer Codes

Clg / Cg – Vent clogged.
C80 / C8 / C8o – 80% airflow blockage.
C90 / C9 / C9o – 90% blockage in the dryer vent.
HC / hE / HC4 – Overheating detected, usually from clogged vents.
tS / tC / t0 – Sensor and temperature control issues linked to poor airflow.

Whirlpool / Maytag Dryer Codes

AF / F4 E3 – Restricted airflow.
L2 – Low voltage error that can affect heating. Always confirm your outlet provides the correct voltage.
PF – Power failure during a drying cycle.

Kenmore Dryer Codes

AF – Vent restriction or airflow blockage.
F30 – Residue or lint buildup causing restriction.

GE, Electrolux, & Frigidaire Dryer Codes

E22 / E64 – Vent or heating fault detected.
EF1 – Ventilation blockage.
Clean Filter – Reminder that may indicate more than just a dirty lint screen.
E40 / E42 – Door not closing securely, sometimes from pressure inside clogged vents.

Bosch & Amana Dryer Codes

E01 / E02 – Vent blockage or fluff filter issue.
AF / “Check Vent” – Low airflow warning in Amana dryers.

Speed Queen Dryer Codes

AF / EAF2 – Airflow restriction from lint, clogged vents, or filter blockages.

If your dryer displays any of these, stop using it immediately. Ignoring them could mean the error continues, increasing the risk of fire or appliance damage. Instead, request service with Dryer Vent Wizard of Mount Prospect and Park Ridge.

Why Airflow Matters

Your dryer relies on a clear vent system to release hot, moist air. When clogged vents or crushed ducts restrict that pathway, the dryer overheats, cycles run longer, and lint continues to accumulate.

Warning signs include:

Hot air trapped inside the drum
A dryer that feels unusually hot to the touch
Burning smells during operation
Lint around the exhaust vent or machine base
Excess humidity in the laundry room

Without professional dryer vent cleaning, these small issues quickly escalate into major safety hazards.

Fabric Softener & Lint Buildup

Many homeowners are surprised to learn that fabric softener contributes to lint buildup. Dryer sheets and liquids leave residue on the lint filter, reducing airflow and making lint more likely to stick.

Signs of residue buildup:

Sticky or greasy lint screen
Clothes are still damp after a drying cycle
Musty or burnt odor when drying clothes

Prevention tips:

Wash the lint screen monthly with warm, soapy water
Use fabric softener sparingly or switch to dryer balls
Keep up with annual dryer vent cleaning to prevent hidden blockages

A Few Troubleshooting Steps Before You Call

Sometimes you can try a few troubleshooting steps before requesting professional help:

Unplug the dryer for 5–10 minutes, then restart it.
Clean the lint filter and housing.
Inspect the power cord to make sure the connection is secure.
Verify the dryer vent system is not kinked or crushed.
Check the outside exhaust vent for nests, leaves, or other debris.

If the error continues after these checks, it’s time to request service.

Signs You Need Vent Cleaning Even Without an Error Code

Not all issues trigger a dryer error code. Watch for these hidden warnings:

The dryer takes longer to dry clothes
Lint around the outside exhaust vent
Dryer shutting down mid-cycle
Burning or musty odors during operation
Dryer displays “Check Vent” messages intermittently

These are signs that your dryer vent system is unsafe and needs immediate attention.

Cleaning Frequency for Mount Prospect & Park Ridge

How often you need dryer vent cleaning depends on your home:

Annually – Most average households
Every 3–4 months – Large families, multiple pets, or long vent lines
Every 3–5 years – Single-occupant homes with light dryer use

Vent length rule: No more than 25 feet, minus 5 feet for each 90° turn. Longer vents need more frequent cleaning.

Local Hazards in Mount Prospect & Park Ridge

Environmental factors add risk for clogged vents here:

Spring: Birds nesting in outside vents
Summer: Humidity, causing lint clumps
Fall: Leaves and yard debris blowing into covers
Winter: Snow and ice, blocking the exhaust vent

These conditions make professional inspections even more important.

Our Professional Dryer Vent Cleaning Process

When you schedule dryer vent cleaning with Dryer Vent Wizard of Mount Prospect and Park Ridge, our team ensures your system is safe and efficient:

Complete inspection of your dryer vent system
Removal of lint, residue, and blockages from the dryer to the outside vent
Testing to verify airflow and safety
Recommendations to prevent future issues
90-day service guarantee for peace of mind

Request Service Before Errors Become Hazards

If your dryer displays a warning or an error continues, don’t ignore it. From LG’s d80/d90/d95 codes to Samsung’s C90, these aren’t minor glitches; they’re red flags about your dryer vent system.

We’ll clear blockages, restore airflow, and protect your home from the dangers of clogged vents.

Dryer Error Codes Explained by Dryer Vent Wizard of Mount Prospect and Park Ridge