Dryer Error Codes Explained: Heat, Venting, Motor, and Sensor Failures

Use this guide to triage dryer problems safely, with an emphasis on venting/airflow, heat protection, motor issues, and sensor patterns.

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TL;DR

✓ Venting restrictions are common and can trigger safety shutdowns; treat them seriously.
✓ If dryer runs but doesn’t heat, start with airflow and power/fuel basics.
✓ Stop if overheating or burning smells occur.
✓ Codes vary by model; use code pages as model-family entry points where available.

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Symptoms Root Causes Step-by-step fixes What NOT to do If it persists Code directory Related guides & hubs FAQ References

Symptoms / When you see this

✓ Dryer stops with a code.
✓ Runs but no heat.
✓ Overheating or burning smell.
✓ Long dry times worsening over time.

Root causes (grouped)

✓ Restricted venting/airflow (lint, crushed duct, blocked exterior vent).
✓ Heating circuit issues (electric vs gas models differ).
✓ Motor/drum movement issues.
✓ Sensor/control state issues after interruptions.

Step-by-step fixes (safe, prioritized)

✓ Clean lint filter and verify strong airflow at the exterior vent.
✓ Inspect visible venting for crush points and lint buildup.
✓ Power-cycle and retry a short timed cycle.
✓ If overheating suspected, stop use until venting is corrected.
✓ Use manufacturer guidance for model-specific heating and sensor checks.

What NOT to do

✓ Do not bypass thermal cutoffs or safety devices.
✓ Do not operate if overheating repeats.
✓ Do not disassemble gas components unless qualified.

If it persists (escalation checklist)

✓ Record the code, model number, and symptom (no heat vs no tumble vs overheating).
✓ Verify venting is clear end-to-end.
✓ Use service guidance for repeated heat/motor faults.

Code directory within this guide

✓ Dryer-specific directories may not be fully indexed yet; codes are highly brand/model-specific.
✓ Use the troubleshooting flow above, then pivot into the closest matching appliance directories linked here.

Code	Meaning	Next step
CF	Communication failure — This code indicates that the appliance detected a communication breakdown between internal components.	Follow the checklist on the code page
UO	Vent blockage — This code indicates that the appliance detected restricted airflow or vent obstruction.	Follow the checklist on the code page
ER PS	Power supply issue — This code indicates that the appliance detected an internal power supply irregularity.	Follow the checklist on the code page
CL	Control lock active — This code indicates that the appliance’s control lock feature is currently enabled.	Follow the checklist on the code page
dE	Door error — This code indicates that the appliance detected an issue with door closure or latch confirmation.	Follow the checklist on the code page
E1	Sensor failure — This code indicates that the appliance detected an irregular sensor reading.	Follow the checklist on the code page
E2	Heating issue — This code indicates that the appliance detected a heating irregularity.	Follow the checklist on the code page
E3	Load or balance error — This code indicates that the appliance detected an imbalance condition.	Follow the checklist on the code page
E4	Overflow condition — This code indicates that the appliance detected excessive water levels.	Follow the checklist on the code page
H2O	Water supply issue — This code indicates that the appliance did not detect expected water intake.	Follow the checklist on the code page
LOC	Panel locked — This code indicates that the appliance control panel is locked.	Follow the checklist on the code page
PF	Power failure — This code indicates that the appliance detected a recent interruption in electrical power.	Follow the checklist on the code page
tE	Temperature sensor error — This code indicates that the appliance detected irregular temperature sensor readings.	Follow the checklist on the code page
E5	Voltage issue — This code indicates that the appliance detected an irregular or unstable voltage condition.	Follow the checklist on the code page
E6	Communication fault — This code indicates that the appliance detected a communication interruption between internal components.	Follow the checklist on the code page
E7	Sensor calibration issue — This code indicates that the appliance detected an irregularity in sensor calibration or reference values.	Follow the checklist on the code page
F3	Temperature sensor fault — This code indicates that the appliance detected irregular temperature sensor feedback.	Follow the checklist on the code page
F5	Door latch problem — This code indicates that the appliance detected an issue with the door latch confirmation system.	Follow the checklist on the code page

Tip: If your exact code isn’t listed, use the closest hub link above and browse related prefixes or message patterns.

FAQ

Is poor venting really that important?

Yes. Restricted airflow is a common cause of long dry times and overheating, and it can be a safety hazard.

Why does dryer run but not heat?

Commonly heating circuit/fuel supply issues or safety cutoffs triggered by airflow problems.

Can I keep running if it overheats?

No. Stop and correct airflow/venting issues first.

Do electric and gas dryers share codes?

Sometimes, but many codes differ. Always use model-specific guidance.

Safe first test?

Clean lint filter, confirm exterior vent airflow, and run a short timed cycle.

Can lint cause sensor errors?

Yes. Lint affects airflow and temperature behavior, triggering protection logic.

When should I call service?

If overheating repeats, electrical smells occur, or motor/drum issues are present.

Where is the model number?

Usually inside the door frame or on the rear panel.

References / Notes

✓ Owner manual troubleshooting section
✓ Manufacturer venting and safety guidance
✓ Safe electrical and gas-handling practices