Midea Air Conditioner Error Code En

The En code indicates an open circuit or short circuit failure in the evaporator temperature sensor. This sensor monitors the indoor coil temperature and the control board has detected a signal outside normal operating range. The unit may stop cooling or shut down until the fault is resolved.

It is not advisable to continue operating the unit while the En fault is active. Without accurate evaporator coil temperature data, the control board cannot prevent the coil from icing over or detect other thermal issues. Running the system in this condition risks ice buildup, compressor strain, and potential water damage from overflow.

A power reset may temporarily clear the En code, but the fault will return if the underlying sensor or wiring problem has not been corrected. The control board re-checks the sensor circuit on startup, so a persistent hardware failure will trigger the code again within a short time. A proper repair is required to permanently resolve the issue.

Some causes of the En code, such as a loose connector or visible wiring damage, can be addressed by a knowledgeable DIYer with basic electrical skills and a multimeter. If the sensor itself has failed, replacing the thermistor is a straightforward repair for most technicians. However, if the control board is involved, professional diagnosis is recommended before purchasing parts.

If only the evaporator temperature sensor needs replacement, parts typically cost between $10 and $40, with labor adding $50 to $150 depending on the service provider. If the control board is at fault, total repair costs can range from $150 to $400 or more. Getting a diagnosis before committing to board replacement is strongly recommended.