E08
Speed Queen Inlet Thermistor / Temperature Sensor Fault

Dryer displays E08, may run but time remaining is inaccurate or cycles end too soon/too late

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Defective inlet thermistor, Loose or damaged thermistor harness, Corroded connector at control board, Control board analog-to-digital sensor failure

How to Fix / Troubleshooting

Safety first: Disconnect power before opening the cabinet.

Step-by-step checks:

  • Locate inlet thermistor: Typically mounted near the heater housing or air inlet path inside the dryer.
  • Visual inspection: Check for physical damage, melted plastic, or signs of overheating around the thermistor.
  • Resistance test: Remove at least one wire from the thermistor and measure resistance at room temperature. Compare to manufacturer specs. Replace if readings are far out of range or unstable when gently warmed with a hair dryer.
  • Harness continuity: Test continuity from the thermistor connector to the control board connector to ensure the wiring is intact.
  • Control board evaluation: If sensor and wiring are good, the control board may not be interpreting the signal correctly and may need replacement.

When to call a technician: Sensor circuit diagnosis can be tricky; if unsure, contact a qualified technician.

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Repair Difficulty

Medium 3/5

Required Part

Inlet Thermistor
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