Samsung Heat Pump Error Code E202

E202 means the heat pump compressor has been shut down by the low pressure protection control. The system detected refrigerant pressure below 2.6 kg/cm2G during cooling mode or below 1.4 kg/cm2G during heating mode. This is a protective shutdown designed to prevent compressor damage from operating without adequate refrigerant pressure. A technician should connect a manifold gauge set and S-net diagnostic tool to evaluate actual system pressures and identify the root cause.

No. The E202 code indicates the system has already shut down the compressor as a safety measure. Attempting to override or repeatedly restart the unit without addressing the low pressure condition can cause severe compressor damage, including burned motor windings or seized internal components. Leave the unit off until the underlying cause has been diagnosed and corrected.

A power reset may temporarily clear the E202 code and allow the unit to restart, but if the underlying low pressure condition still exists, the system will detect it again and shut down. Resetting without fixing the root cause risks compressor damage over repeated attempts. The error should be diagnosed and resolved before returning the unit to normal operation.

Some basic checks are within reach for a knowledgeable homeowner, such as confirming that the service valves on the refrigerant lines are fully open. However, diagnosing and repairing refrigerant leaks, recharging refrigerant, or replacing components like expansion valves or pressure sensors requires specialized tools and EPA certification to handle refrigerants. It is recommended to contact a licensed HVAC technician for this fault.

Repair costs vary widely depending on the cause. If the fix is simply opening a closed service valve, labor costs alone may be in the range of $75 to $150. Refrigerant leak repair and recharge can run $200 to $600 or more depending on the leak location and refrigerant type. Replacing an expansion valve or low pressure sensor typically adds $150 to $400 in parts and labor. Compressor replacement, if the unit has sustained damage, is the most expensive scenario.