mypros+
Error code reference

Ariston Refrigerator Error Code r1

Fridge probe open circuit or short circuit.

Avg. service call
$285
National average. Trip fee plus diagnostic plus labor. Before parts.
MyPros+ 3-day pass
$9.95
Same diagnostic steps, on your phone. Start now.
You keep in your pocket
~$275
Even before you buy the part.
Skip the service call. Fix it yourself.
Full procedure unlocks instantly.
Get Started

What the r1 error code actually means

The r1 code means your refrigerator's internal temperature sensor has stopped working properly, either because the connection is broken or the sensor itself has failed. Your fridge will still try to keep food cold by running the compressor on a fixed schedule, but it is not accurately monitoring the actual temperature inside. Getting the sensor checked and replaced if needed will restore normal, precise temperature control.

Diagnostic procedure

The full r1 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Depending on room temperature, compressor cycles on a timed basis per table; if fridge probe functions correctly, error clears automatically.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock r1 procedure $9.95

Or subscribe: $29/month for unlimited access to all codes plus Max AI diagnostics.

Most common causes of r1

Ranked by how often they cause this code
  1. 1Failed fridge compartment NTC probe
  2. 2Disconnected or loose wiring connector
  3. 3Corroded or damaged connector pins
  4. 4Damaged wiring harness
  5. 5Control board fault

Most DIYers save hundreds by diagnosing before ordering parts.

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass

Questions people ask about r1

What does r1 mean on a Ariston refrigerator?
The r1 code indicates that the fridge compartment temperature probe has an open circuit or short circuit fault. The control board cannot receive a valid temperature reading from the sensor. While the fault is active, the compressor runs on a timed cycle based on room temperature rather than actual compartment temperature. If the probe fault is intermittent, the error can clear on its own once valid readings resume.
Is it safe to keep using my refrigerator while r1 is displayed?
The refrigerator will continue operating in a timed compressor cycle mode when r1 is active, so food will still receive some cooling. However, because the unit is not monitoring actual compartment temperature, there is a risk that food may not be kept at a consistently safe temperature. It is advisable to check food temperatures manually and have the probe repaired promptly to restore accurate temperature control.
How much does it cost to repair an r1 error on an Ariston refrigerator?
Repair costs depend on which component has failed. A replacement NTC fridge probe typically costs in the range of $15 to $50 for the part. If professional labor is required, a service call plus labor can add $80 to $200 or more depending on your location. Control board replacement, if needed, is the most expensive scenario and can range from $150 to $400 or higher including parts and labor.
Will resetting the refrigerator clear the r1 error?
A manual reset may temporarily clear the display, but the r1 code will return if the underlying probe fault is still present. The error is designed to clear automatically only when the probe begins returning valid resistance readings to the control board. Fixing or replacing the faulty probe or its wiring is the correct solution for a permanent resolution.
How do I fix the r1 error on an Ariston refrigerator?
Start by inspecting the wiring connector at the fridge compartment probe for loose connections, corrosion, or damage, as reconnecting or cleaning the connector sometimes resolves the fault. If the connector looks good, measure the probe's resistance with a multimeter to determine whether the sensor element has failed. A probe that reads open circuit or a clearly out-of-range resistance value needs to be replaced. If the probe and wiring both test correctly, the control board input circuit may need professional evaluation.

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass