Samsung Heat Pump Error Code E441

E441 indicates that the compressor sump temperature exceeded 95 degrees Celsius for more than 5 continuous minutes, triggering the sump temperature protection control. The unit shuts down to prevent damage to the compressor and its lubrication system. This is a serious fault that requires diagnostic attention before the system is returned to service.

Some contributing factors, like clearing debris from the outdoor coil or improving airflow around the unit, can be done without professional tools. However, diagnosing the PWM valve behavior, compressor loading cycles, and refrigerant charge requires S-net software and refrigerant handling equipment that are typically only available to certified technicians. A professional service call is strongly recommended.

Repair costs vary widely depending on the root cause. If the fix involves cleaning the coil or adjusting refrigerant charge, costs are typically in the range of 150 to 400 dollars. If the PWM valve requires replacement, expect costs in the range of 300 to 700 dollars including parts and labor. A compressor replacement is significantly more expensive, often ranging from 1,200 to 2,500 dollars or higher depending on the model.

A reset using Key 3 will clear the error code temporarily, but the fault will return if the underlying cause is not corrected. Samsung's diagnostic procedure calls for connecting S-net after the reset and running the unit under the same conditions to reproduce and identify the problem. Resetting without further diagnosis risks compressor damage.

No. The E441 fault exists specifically to protect the compressor from heat-related damage. Continuing to operate the unit without resolving the cause of the overheating can result in compressor failure, which is one of the most expensive repairs possible on a heat pump system. The unit should remain off until the fault is diagnosed and corrected.