Samsung Air Conditioner Error Code E296

E296 indicates a low pressure sensor error caused by either an open or short circuit condition in the sensor or its wiring. A short error occurs when the sensor voltage drops below 0.4V, and an open error occurs when it rises above 4.2V. The control board uses this sensor to monitor refrigerant pressure on the suction side of the system, and it disables normal operation when the signal falls outside the acceptable range to protect the compressor.

No, you should not continue operating the unit while E296 is active. The low pressure sensor protects the compressor from running under dangerously low refrigerant pressure conditions. Without a reliable sensor signal, the system cannot provide that protection, and forcing the unit to run could result in compressor damage, which is a costly repair.

Repair costs vary depending on the root cause. If only a wiring repair or connector cleaning is needed, labor costs may range from around 75 to 150 dollars. If the low pressure sensor itself needs replacement, parts plus labor could bring the total to a range of 150 to 350 dollars. Control board replacement, if required, is typically the most expensive scenario and can range from 300 to 600 dollars or more depending on the model.

Some of the diagnostic steps, such as inspecting wiring for breaks and checking connector integrity, can be done by a knowledgeable DIYer. However, if the sensor needs replacement or refrigerant pressure needs to be verified, a certified HVAC technician is recommended. Working inside the unit near refrigerant lines and electrical components carries risk if you are not familiar with the system.

A power reset may temporarily clear the displayed error, but the code will return if the underlying fault in the sensor or wiring is not repaired. Resetting without fixing the root cause does not resolve the problem and may delay diagnosis while the system continues to operate unprotected.