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Error code reference

LG Dryer Error Code tE7

Evaporator in thermistor open or shorted.

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What the tE7 error code actually means

The tE7 code means the dryer has detected a problem with a temperature sensor located near the evaporator, which is part of the heat pump system that helps dry your clothes efficiently. This sensor is either completely broken internally or has a wiring fault that makes it unreadable by the dryer's control system. A technician would typically find this code during a service diagnostic check rather than during a normal drying cycle.

Diagnostic procedure

The full tE7 procedure

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First diagnostic step
Replace the eva in thermistor. Only displayed in test mode.
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Most common causes of tE7

Ranked by how often they cause this code
  1. 1Failed evaporator inlet thermistor
  2. 2Damaged wiring harness
  3. 3Corroded or disconnected connector
  4. 4Control board fault

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Questions people ask about tE7

What does tE7 mean on a LG dryer?
The tE7 code on an LG dryer indicates that the evaporator inlet thermistor has been detected as open or shorted. This thermistor is part of the heat pump system and monitors evaporator temperature. The code only appears during test mode, so it is typically found by a technician during a diagnostic service check rather than during normal use.
Will resetting my LG dryer clear the tE7 error?
A power reset is unlikely to permanently clear the tE7 code because it is caused by a hardware fault, either a failed thermistor or a wiring issue, rather than a software or communication glitch. The code also only appears in test mode, so it may not be visible again until a technician re-enters diagnostics. The underlying component fault must be repaired to fully resolve the condition.
How much does it cost to repair the tE7 error on an LG dryer?
Repair costs will vary depending on whether the fix involves only the thermistor sensor, the wiring harness, or the control board. A thermistor replacement is generally the least expensive repair, with parts typically ranging from around $15 to $50 and professional labor adding $75 to $150 or more depending on your location. Control board replacement, if needed, would increase costs significantly.
How do I fix the tE7 error on my LG dryer?
The recommended first step is to replace the evaporator inlet thermistor. Before replacing the part, a technician should inspect the wiring harness and connector for visible damage, corrosion, or loose connections that could also cause an open or shorted circuit. If the wiring checks out and the new thermistor does not resolve the fault, the control board may need further evaluation.
Is it safe to use my LG dryer when the tE7 code is present?
Because tE7 only appears in test mode and not during normal operation, the dryer may continue to run standard cycles. However, a faulty evaporator thermistor means the heat pump system is operating without accurate temperature feedback from that sensor, which could affect drying efficiency or contribute to further issues over time. It is advisable to have the fault repaired promptly to prevent potential secondary damage.

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