LG Dryer Error Code E7

The E7 code on an LG dryer indicates a problem with the drum outlet thermistor circuit. This thermistor monitors exhaust air temperature, and the code appears when the control board detects the connector is out of position, contact is poor, or the thermistor has failed. The expected thermistor resistance is 10kΩ plus or minus 5% at 25 degrees Celsius.

It is not recommended. The drum outlet thermistor is part of the dryer's temperature control and safety system. Running the dryer without a reliable thermistor reading means the control board cannot properly regulate heat, which could lead to overheating or incomplete drying cycles. Stop using the dryer until the fault is diagnosed and corrected.

If the fix is simply re-seating a loose connector, there is no parts cost involved. A replacement drum outlet thermistor typically costs between $15 and $50 depending on the specific dryer model. If professional repair service is needed, expect to pay between $100 and $200 in total including labor, though pricing varies by region and service provider.

In many cases yes, if the cause is a loose or corroded connector. Start by unplugging the dryer, locating the drum outlet thermistor connector, and firmly re-seating it. If the error persists, use a multimeter to check thermistor resistance and compare it to the 10kΩ plus or minus 5% spec at 25 degrees Celsius. If the reading is out of range, the thermistor needs replacement, which is a straightforward repair for someone comfortable working with appliance wiring.

A reset may temporarily clear the code, but it will return if the underlying problem is not fixed. Unplugging the dryer for a few minutes can reset the control board, but if the connector is loose, corroded, or the thermistor has failed, the fault condition still exists and the code will reappear once the dryer runs again. Address the root cause before relying on a reset.