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Error code reference

Samsung Heat Pump Error Code E301

Fan motor high temperature error

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What the E301 error code actually means

Your Samsung heat pump's outdoor fan motor has gotten too hot and the system has shut down to protect itself from damage. This usually means the outdoor fan is either not spinning properly or something is blocking airflow around the outdoor unit. A technician will need to inspect the fan, check for debris, and test the motor components to find the root cause.

Diagnostic procedure

The full E301 procedure

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1
First diagnostic step
Check for rotation of outdoor fan motor and whether there is a lock condition.
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Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of E301

Ranked by how often they cause this code
  1. 1Locked or restricted outdoor fan motor
  2. 2Failed or weak run capacitor
  3. 3Worn or failing motor bearings
  4. 4Blocked or restricted airflow around outdoor unit
  5. 5Motor winding failure

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Questions people ask about E301

What does E301 mean on a Samsung heat pump?
E301 indicates that the outdoor fan motor temperature has exceeded 110°C during operation, triggering a high temperature protection fault. The system shuts down to prevent motor winding damage or a more serious failure. The first step is to check whether the outdoor fan is rotating and whether the motor is in a locked condition.
Is it safe to keep running my heat pump when E301 is displayed?
No. The E301 fault is a thermal protection shutdown, and the unit should not be forced to continue operating while the fault is active. Running a motor that is overheating can lead to permanent winding damage, insulation breakdown, and in extreme cases a fire hazard. Diagnose and resolve the root cause before restarting the system.
How much does it cost to repair a Samsung heat pump E301 error?
Repair costs vary depending on the failed component. A run capacitor replacement is typically in the range of $75 to $200 including parts and labor. An outdoor fan motor replacement is more involved and commonly falls in the range of $250 to $600 or more depending on the specific model and labor rates in your area. Clearing a simple debris blockage may cost nothing beyond a service call fee.
Can I fix the E301 error myself, or do I need a technician?
Some causes are DIY-accessible, such as clearing debris from the fan blade and outdoor unit housing or checking for obvious blockages. However, testing and replacing the run capacitor, diagnosing motor bearing wear, or testing motor windings requires electrical knowledge and the appropriate tools. If the motor itself has failed, professional replacement is strongly recommended.
Will resetting the heat pump clear the E301 error?
A power reset may temporarily clear the fault code and allow the unit to restart, but the error will return if the underlying cause is not addressed. If the motor temperature drops after a period of rest, the unit may operate briefly before overheating again. Resetting without fixing the problem risks accelerating motor damage.

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