GE Dryer Error Code E03

E03 indicates that the inlet thermistor circuit has gone open and is producing a voltage signal above the 4.8V maximum threshold for at least 5 continuous minutes. The inlet thermistor monitors incoming air temperature, and when its circuit breaks, the control board can no longer read a valid temperature. The dryer stops operating until the fault is resolved.

No, you should not continue operating the dryer while E03 is active. The inlet thermistor is part of the dryer's temperature monitoring system, and without a valid reading the control board cannot properly regulate heat. Running the dryer in this condition could result in overheating or damage to other components.

A reset may temporarily clear the code from the display, but the fault will return if the underlying cause has not been corrected. The control board requires a valid thermistor signal within the acceptable voltage range before normal operation resumes. Replacing or repairing the faulty component is necessary for a permanent resolution.

Many E03 cases can be resolved without a technician if you are comfortable using a multimeter and working around appliance wiring. Start by checking all connectors and wiring in the thermistor circuit for obvious damage or loose connections. If the thermistor itself tests open, replacing it is a straightforward repair involving disconnecting the old thermistor and installing a new one. If the wiring harness is damaged extensively, a technician may be needed to perform a proper repair.

If only the thermistor needs replacement, parts typically cost in the range of $10 to $40 depending on the specific model. If you hire a technician, total repair costs including labor generally fall between $75 and $200. Wiring repairs can vary depending on the extent of the damage found during diagnosis.