Daewoo Air Conditioner Error Code CODE2

CODE2 indicates that the indoor coil temperature sensor has been detected as either open or short circuited. This sensor monitors the evaporator coil temperature to manage cooling and prevent freezing. When the control board detects a resistance reading outside the valid range, it shuts the unit down completely and displays CODE2 to alert the user or technician.

The unit will not operate while CODE2 is active, so continued use is not possible until the fault is resolved. This is a protective lockout rather than a minor warning. Do not attempt to bypass the fault, as the coil sensor protects against evaporator freeze-up and related compressor damage.

A power reset by unplugging the unit for several minutes may temporarily clear the displayed code, but CODE2 will return immediately if the underlying sensor fault is still present. Resetting without repairing the sensor or wiring is not a solution. The fault must be corrected physically before the unit will resume normal operation.

Checking the sensor connector for looseness and reseating it is a straightforward task that many homeowners can attempt safely with the unit powered off. However, measuring sensor resistance with a multimeter and replacing the thermistor or wiring requires basic electrical knowledge and comfort working inside the indoor unit. If you are unsure about any step, contacting a qualified technician is the safer choice.

If only the sensor needs replacement, parts typically cost in the range of $15 to $50 depending on the model, with labor adding $75 to $150 if a technician performs the work. If the control board requires replacement, total costs can rise to $150 to $400 or more. Costs vary by region and service provider.