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Error Code Reference

KitchenAid Refrigerator Error Code Er rS

This error code indicates a sensor or communication malfunction within your KitchenAid refrigerator's control system. The refrigerator may not be maintaining proper temperature or responding to control inputs as expected.

Technical Advisory
Home › Error Codes › KitchenAid Refrigerator Error Code Er rS

Signs

What you may observe

• Refrigerator not maintaining correct temperature settings • Display panel showing the Er rS error code • Cooling cycles not operating normally • Ice maker or water dispenser malfunctioning • Compressor running continuously or not cycling properly • Unusual beeping or alarm sounds from the appliance • Control buttons unresponsive or delayed in response

Possible Causes

Root causes behind this error

• Faulty temperature sensor or thermistor in the refrigerator or freezer compartment • Loose or corroded electrical connections at the control board • Malfunctioning main control board or circuit board • Communication error between internal sensors and control system • Defrost cycle sensor failure • Damaged wiring harness between components • Power supply fluctuation affecting sensor readings • Failed evaporator fan motor or damper control

Safety Checks You Can Do

Steps you can try at home safely

• Verify the circuit breaker serving your refrigerator is switched ON; if tripped, switch it OFF then back ON • Ensure both refrigerator and freezer doors are fully closed and sealing properly • Check that the temperature dial or digital settings are set to normal operating levels (typically 37-40°F for refrigerator, 0°F for freezer) • Inspect visible vents inside the refrigerator and freezer to confirm they are not blocked by food or ice buildup • Verify that air can flow freely around the back and sides of the refrigerator with at least 2 inches of clearance • Unplug the refrigerator from the wall outlet and wait 60 seconds, then plug it back in to reset the control system • Alternatively, turn OFF the circuit breaker for 60 seconds then switch it back ON • Clean accessible condenser coils at the bottom rear of the unit using a soft brush if visible dust accumulation is present • Check that the refrigerator is level and not tilted, as improper leveling can affect sensor accuracy
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