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Error code reference

Samsung Air Conditioner Error Code E316

Low pressure sensor error OPEN/SHORT

Samsung codesSamsung air conditioner codes
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What the E316 error code actually means

Your Samsung air conditioner has detected a problem with the sensor that monitors refrigerant pressure on the low side of the system. The sensor is either not connected properly or has failed, so the unit is stopping itself before the compressor starts to avoid potential damage. A technician will need to check the sensor wiring and the sensor itself to get the system running again.

Diagnostic procedure

The full E316 procedure

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First diagnostic step
Check sensor wiring; skip detection during oil recovery/safety start/defrost operations.
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Most common causes of E316

Ranked by how often they cause this code
  1. 1Loose or disconnected sensor wiring
  2. 2Damaged or shorted sensor wiring
  3. 3Failed low pressure sensor
  4. 4Faulty control board

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Questions people ask about E316

What does E316 mean on a Samsung air conditioner?
E316 indicates a low pressure sensor OPEN or SHORT circuit error. The control board detected a signal voltage below 0.4V (SHORT) or above 4.7V (OPEN) from the low pressure sensor when the compressor was preparing to start. The system shuts down to prevent compressor damage until the fault is resolved.
Is it safe to keep running my Samsung air conditioner with an E316 error?
The unit will not allow the compressor to start while E316 is active, so it is effectively protecting itself from running in an unsafe condition. You should not attempt to bypass the fault. Operating a compressor without valid low pressure monitoring risks severe compressor damage and should be avoided.
How much does it cost to repair an E316 error on a Samsung air conditioner?
Repair costs vary depending on what is causing the fault. A simple wiring repair or connector fix may cost between $75 and $200 for a service call and labor. If the low pressure sensor needs replacement, expect parts and labor to range from $150 to $400. Control board replacement is the most expensive scenario, often ranging from $300 to $700 or more depending on the model.
Can I fix E316 on my Samsung air conditioner myself?
A knowledgeable DIYer can inspect the sensor wiring and connectors for obvious damage, corrosion, or loose connections without special tools. However, diagnosing the sensor itself or the control board requires electrical testing skills and a multimeter. Any work involving the refrigerant circuit must be performed by a certified HVAC technician.
Will resetting my Samsung air conditioner clear the E316 error?
A power reset may temporarily clear the error display, but E316 will return the next time the compressor attempts to start if the underlying wiring or sensor fault is still present. The root cause must be diagnosed and repaired for the error to clear permanently.

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