What Dryer Error Codes Are Telling You: Where to Get Help

Brand	Code(s)	Meaning	Action
LG	d75–d95	75–95% airflow blockage	Stop use, schedule cleaning
Samsung	C80/C90, HC, tS, Clg	Blockage/overheating	Call before next use
Whirlpool/Maytag	AF, F4E3	Airflow restricted	Inspect & clean vent
Kenmore	F30	Residue/airflow blockage	Clean lint trap & vent
Electrolux	EF1	Ventilation blockage	Schedule professional cleaning
Bosch	E01/E02	Fluff filter/vent blockage	Clear & inspect
Amana	AF	Low airflow	Clean vent
Speed Queen	AF/EAF2	Airflow problems	Clean vent & ducting

LG Dryer Error Codes

• d75 – 75% airflow restriction (early warning)
• d80 – 80% restriction
• d90 – 90% restriction
• d95 – 95% restriction
• FO – Lint filter not inserted
• tE1 / tE2 / tE3 – Thermistor faults
• HS – Humidity sensor fault

When an error code such as d75 through d95 appears on dryer displays, it signals severe airflow restrictions in the vent that can quickly overheat electric dryers. If the error continues during the drying cycle, stop using the dryer and request service from Dryer Vent Wizard of North Denver and Broomfield.

Samsung Dryer Error Codes (Airflow & Overheating)

Samsung dryer displays often show an error code with letter and number combinations that mirror LG models.

Vent Blockage Test Codes

• Clg / Cg – Vent clogged
• C80 / C8 / C8o – ~80% blocked
• C90 / C9 / C9o – ~90% blocked

Overheating

• HC / hE / HC4 / 1 HC – Overheating from restricted vent

Temperature Sensor (airflow-related)

• tS / t5 / tC / tO / t0 / tE3 / tC5 / tCS / 1tC / 1tC5 / 1tCS – Sensor/control faults from poor airflow

If a Samsung dryer display shows an error code for blockage or overheating, stop the cycle immediately because clogged vents and restricted airflow can create fire risks.

Whirlpool / Maytag Dryer Error Codes

• AF – Restricted airflow
• F4 E3 – AF equivalent
• F31 – Moisture sensor issue
• F2E1 – Stuck button

Kenmore Dryer Error Codes

• AF – Restricted airflow
• F30 – Lint/fabric softener residue restricting airflow

GE / Electrolux / Frigidaire Dryer Error Codes

• E22 / E64 – Vent or heater fault
• Clean Filter – Reminder (often ignored)
• EF1 (Electrolux) – Ventilation blockage
• E4 – Humidity sensor error
• E8C (Frigidaire) – High limit thermostat tripped
• E A5 – Service needed (control/sensor)
• Mute – Alerts silenced (can hide errors)

Bosch Dryer Error Codes

• E01 / E02 – Fluff filter or vent blockage

Amana Dryer Error Codes

• AF or “Check Vent” – Low airflow from lint or hose issues

Speed Queen Dryer Error Codes

• AF / EAF2 – Airflow problems from clogged vents or lint trap

The Role of Airflow in Dryer Operation

A dryer relies on consistent airflow through the dryer vent to release heat and moisture during every cycle. When airflow is blocked by lint, crushed ducts, or outside obstructions, the dryer display may show an error code as heat builds inside the vent system. Proper airflow guarantees:

• Each cycle is efficient.
• Dryer wear is avoided.
• Risk of fire is minimized.

The Disadvantages of Using Fabric Softener

Fabric softener sheets and liquids leave residue inside the dryer vent. That coating clings to the lint screen, traps more lint, and restricts airflow, which triggers error codes on dryer displays.

Signs of Residue Buildup:

• A sticky lint screen that does not clean easily
• Clothes are coming out damp after a full drying cycle
• Sour, musty, or burnt odor that appears during operation

How to Prevent the Problem:

• Use fabric softener sparingly or replace it with wool dryer balls to speed drying cycles
• Wash the lint screen monthly with warm, soapy water to keep airflow clear
• Schedule annual professional dryer vent cleaning and request service promptly if vent blockages are detected

Quick Fixes to Attempt Before You Require Service

Not every airflow error requires service right away, and some issues can be cleared with quick checks. Homeowners in North Denver should try these steps before scheduling a dryer vent appointment:

• Unplug the dryer for a few minutes to clear minor errors.
• Remove and clean the lint screen and housing thoroughly.
• Inspect the dryer vent hose for crushing, sharp turns, or blockages that slow airflow speed.
• Check the outside vent for nests, leaves, snow, or debris that may have been detected.
• For Electrolux dryers, disable “Mute” mode so that any airflow error code message appears.
• If the error continues after these steps, request service from Dryer Vent Wizard of North Denver and Broomfield.

Signs You Need Cleaning (Even Without a Code)

Not every airflow problem shows up as an error code on the display. Watch for:

• Longer drying cycles
• Dryer is unusually hot or excess moisture in the laundry room
• Burning smell from lint in the vent
• Lint around the door seal or dryer base
• Debris blocking the outside vent or reduced airflow speed
• Drum temperature is climbing higher than 150°F

Maintenance Frequency & Vent Length Rule

How often you clean the dryer vent depends on usage, vent length, and household size:

• Annually – Most homes
• Every 3–4 months – Large families, pets, or long vent runs
• Every 3–5 years – Light-use, single-occupant households
• Vent length rule: Maximum 25 ft, subtract 5 ft for each 90° bend and 2.5 ft for each 45° bend

North Denver Seasonal Hazards

North Denver’s seasons add risks to dryers and vent systems:

• Winter: Heavy snow and freezing temperatures can block dryer vents and reduce airflow.
• Spring: Melting snow and rain introduce moisture that traps lint inside the vent.
• Summer: Hot, dry conditions cause lint and debris to accumulate quickly, raising fire risk.
• Fall: Falling leaves and outdoor debris can clog exterior vents and restrict airflow.

Recognizing these seasonal issues helps homeowners clean vents on schedule and request service before airflow failures occur.

Dryer Vent Wizards Process and Guarantee

When you call Dryer Vent Wizard of North Denver and Broomfield, you receive:

• Complete dryer vent inspection and airflow test
• Lint and debris were cleaned from the dryer through the outside vent
• Hose reconnection and vent length adjustments for safe airflow
• A 90-day service guarantee for peace of mind

When to Call Dryer Vent Wizard of North Denver and Broomfield

If troubleshooting fails and the error code still appears on the display, it is time to request service. Our team will:

• Clean lint and debris from the entire dryer vent system
• Inspect the vent, wall duct, and outside termination for blockages
• Reconnect hoses and confirm safe vent connections
• Improve dryer airflow, cycle efficiency, and reduce moisture buildup

We handle airflow code issues across leading brands, including LG, Samsung, Whirlpool, GE, Electrolux, Bosch, Amana, and Speed Queen dryers.

Don't Let Your Dryer Be a Danger

An error code is a safety warning. Whether it be a straightforward or alphanumeric alert, these codes mean the dryer vent is blocked and heating risks are rising. If you are in North Denver and your dryer continues to show a code you do not recognize, Dryer Vent Wizard of North Denver and Broomfield is ready to help.

Request a Free Quote Today and Keep Your Dryer Safe and Efficient.