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Error code reference

Dcs Refrigerator Error Code R-SENSOR

R-Room temperature sensor defect

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What the R-SENSOR error code actually means

Your DCS refrigerator is showing an error because the temperature sensor inside the refrigerator compartment is sending an impossible reading to the control board. This usually means the sensor has come loose, a wire connected to it is damaged, or the sensor itself has failed. The fridge may not cool properly until this is resolved.

Diagnostic procedure

The full R-SENSOR procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check sensor housing connection in the R-Room, check for contact failure, wire cut, wire short.
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Most common causes of R-SENSOR

Ranked by how often they cause this code
  1. 1Sensor housing slip-out
  2. 2Connector contact failure
  3. 3Wire cut or damage
  4. 4Wire short
  5. 5Defective R-Sensor

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Questions people ask about R-SENSOR

What does R-SENSOR mean on a DCS refrigerator?
R-SENSOR indicates a fault in the R-Room temperature sensor circuit. The control board displays this code when the sensor reports a temperature above 149°F or below -58°F, which signals a wiring, connection, or sensor hardware problem rather than an actual temperature extreme. Common causes include a loose sensor housing, a damaged wire, or a failed sensor.
Will resetting the refrigerator clear the R-SENSOR error?
A power reset may temporarily clear the display, but the code will return if the underlying hardware fault is not corrected. The control board will re-detect the out-of-range sensor reading each time it runs its diagnostic cycle. Proper repair of the sensor, wiring, or connector is required for a lasting fix.
How much does it cost to repair the R-SENSOR error on a DCS refrigerator?
If the fix is simply reseating the sensor or cleaning a connector, there may be no parts cost at all, with a service call fee being the primary expense, typically in the range of $75 to $150. If the sensor itself needs replacement, parts and labor combined generally fall in the range of $100 to $300 depending on your location and the technician's rates. Wiring harness repairs can vary widely based on the extent of the damage.
Can I fix the R-SENSOR error myself?
Some causes are DIY-friendly. Reseating a sensor that has slipped out of its bracket or reconnecting a loose connector requires no special tools and no parts. If wiring is cut or shorted, or if the sensor itself has failed, you will need replacement components and basic electrical diagnostic skills to resolve the fault safely.
Is it safe to keep using my refrigerator while the R-SENSOR error is showing?
The refrigerator may continue running, but the control board cannot accurately regulate compartment temperature without a functioning sensor. This can lead to inconsistent cooling, potential food safety issues, or compressor cycling problems. It is best to address the fault promptly rather than continue operating the unit in a degraded state.

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