GE · Dryer Moderate

E4 — Inlet thermistor open circuit

The control has lost the signal from the inlet (drum) temperature sensor — the thermistor circuit is reading open (infinite resistance), so the dryer can't measure inlet air temp and will stop or refuse to heat. Per GE's factory service documentation, the fix is to check and replace the inlet thermistor if necessary.

Keep using it?
Yes, with caution
DIY difficulty
Moderate

How to fix it

  1. Unplug the dryer for 5 minutes to clear the code.
  2. Remove the panel needed to access the inlet thermistor near the heater housing.
  3. Disconnect the thermistor and measure resistance with a multimeter — should read roughly 10K ohms at room temp.
  4. If OL/infinite, replace the inlet thermistor.
  5. If resistance is correct, inspect the harness for breaks and reseat the connector at the board.
  6. Restore power and run a timed dry. If E4 returns with a verified-good thermistor, have the control board checked.

Why it happens

Typical signs: E4 flashes on display · Dryer stops mid-cycle · No heat or short cycles · Beeping with E4 at startup

  • Failed inlet thermistor Resistance reads OL/infinite at room temp instead of roughly 10K ohms.
  • Loose or broken thermistor harness Spade connectors backed off the thermistor, or the harness is pinched or chafed.
  • Corroded connector pins Moist laundry environments oxidize thermistor terminals over time.

Parts you may need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

Related repair guides

Dryer Runs But Doesn't Heat — Causes and Fixes →Dryer Stops Mid-Cycle or Shuts Off Before Dry →

More GE dryer codes

E1 E1 — Interface (UI) board EEPROM error E2 E2 — Power board EEPROM error E3 E3 — Inlet thermistor shorted E5 E5 — Exhaust thermistor circuit fault E8 E8 — Power board model-selector error F01 F01 — Inlet thermistor defective (CleanSpeak models)

All GE codes → All dryer codes →

Frequently asked questions

What does the E4 code mean on a GE dryer?

The control has lost the signal from the inlet (drum) temperature sensor — the thermistor circuit is reading open (infinite resistance), so the dryer can't measure inlet air temp and will stop or refuse to heat. Per GE's factory service documentation, the fix is to check and replace the inlet thermistor if necessary.

What causes the E4 code on a GE dryer?

Failed inlet thermistor: Resistance reads OL/infinite at room temp instead of roughly 10K ohms. Loose or broken thermistor harness: Spade connectors backed off the thermistor, or the harness is pinched or chafed. Corroded connector pins: Moist laundry environments oxidize thermistor terminals over time.

Is it safe to keep using a GE dryer with a E4 error?

Yes, with caution. This is rated a moderate-severity fault.

How do I fix E4 on a GE dryer?

Unplug the dryer for 5 minutes to clear the code. Remove the panel needed to access the inlet thermistor near the heater housing. Disconnect the thermistor and measure resistance with a multimeter — should read roughly 10K ohms at room temp.

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.