Quick diagnosis
What this code is telling you
Most likely trigger
Blown thermal fuse
Recommended replacement
Dryer Temperature Thermistor Sensor
Diagnostic path
4 ordered checks
Part fit
Exact model number required
Safety first
Before opening the appliance
Unplug the appliance before removing panels or testing internal components. Do not bypass safety switches or live-test high-voltage, gas, refrigerant, or combustion components unless you are qualified to do so.
Read the full safety disclaimerRoot cause
Why the control reported this error
The dryer reports this fault after its control sees an abnormal drying, airflow, temperature, or component signal. The first condition to rule out is blown thermal fuse; also inspect for defective temperature thermistor sensor and lint buildup restricting airflow before condemning dryer Temperature Thermistor Sensor.
Symptoms
What you may notice
- ✓Dryer stops heating midway
- ✓Dryer runs but clothes remain wet
- ✓E1 F3 code displays
Possible causes
Check the most likely causes first
- 1
Blown thermal fuse
Start here when it matches your symptoms.
- 2
Defective temperature thermistor sensor
- 3
Lint buildup restricting airflow
- 4
Damaged wire harness
Diagnostic sequence
Work through these checks in order
Stop when you find the fault. Do not perform a step that requires skills or live testing you are not qualified to do.
- 1
Check 1
Clean lint filter and exhaust duct line completely to ensure unrestricted airflow.
- 2
Check 2
Disconnect electrical power before opening panels. Test thermal fuse on blower housing for continuity; replace if blown.
- 3
Check 3
Disconnect electrical power before opening panels. Measure thermistor resistance (approx 10k ohms at room temperature); replace thermistor if open circuit.
- 4
Check 4
Disconnect electrical power before opening panels. Inspect wiring harness connections between sensor and main board.
Replacement part reference
Dryer Temperature Thermistor Sensor
Exact OEM part number
Model number required
Fitment note
The exact OEM part number varies by model and production revision. Verify the complete model number before ordering.
Verify the appliance model before ordering.
Manufacturers can use different parts under the same error code across model families and production revisions.
Where do I find my model number? →FixCodeDB may earn a commission from qualifying purchases made through affiliate links.
Common questions
Quick answers for this fault
What should I check first for E1 F3?
Start with blown thermal fuse. If that checks out, continue through the diagnostic sequence above rather than replacing a part based on the code alone.
Does E1 F3 always mean Dryer Temperature Thermistor Sensor is bad?
No. An error code identifies the condition the control detected, not a guaranteed failed part. Confirm the likely causes and wiring first. The exact OEM part number varies by model and production revision. Verify the complete model number before ordering.
When should I stop troubleshooting E1 F3 myself?
Stop if the next step requires live electrical testing, sealed-system work, gas or combustion service, or any procedure outside your training. Unplug the appliance before removing panels or testing internal components. Do not bypass safety switches or live-test high-voltage, gas, refrigerant, or combustion components unless you are qualified to do so.
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