KitchenAid Refrigerator Not Cooling in Danville: Ice Removed, Sensor and Fan Replaced

Location: Danville, CA

Appliance: Side-by-side refrigerator

Model: KRSC703HPS00

Replacement parts used: Evaporator temperature sensor and evaporator fan motor with its foam insulation housing. The exact service part numbers were not visible in the supplied photos and are not being guessed.

Customer complaint: The refrigerator was not working correctly and the fresh-food compartment was not cooling.

Diagnosis: Heavy frost and solid ice covered the evaporator area, restricting airflow. The temperature sensor and evaporator fan assembly also required replacement.

Cause: The ice buildup and failed sensing and airflow components prevented cold air from circulating into the fresh-food section.

Repair completed: We opened the evaporator compartment, carefully removed the accumulated ice with a Wagner steamer, replaced the sensor and evaporator fan motor with its foam housing, positioned the sensor correctly, reassembled the refrigerator and tested operation.

Result: Airflow and cooling were restored, the fresh-food compartment began cooling normally and the customer was satisfied.

KitchenAid refrigerator was not cooling in Danville

A Danville homeowner called because the refrigerator had stopped keeping the fresh-food compartment cold. When we removed the interior shelves and inspected the rear evaporator section, the problem was immediately visible: the lower cover and airflow path were packed with thick frost and ice.

A refrigerator can appear extremely cold in one area and still fail to cool food properly. The evaporator produces cold air, but the fan must move that air through the designed channels. When ice seals those channels or interferes with the fan, cold air remains trapped near the evaporator while the fresh-food compartment becomes warm.

Heavy frost blocked the evaporator airflow

The frost in this KitchenAid was not a light surface coating. Ice had accumulated around the evaporator cover and lower air passage, creating a dense restriction. The refrigerator could not simply be reassembled in that condition because a blocked evaporator prevents the replacement fan from moving air normally.

We opened the compartment far enough to inspect the coil, fan area, wiring and temperature-sensor location. The repair required a complete controlled defrost before the failed components could be replaced and positioned correctly.

Controlled defrost with a Wagner steamer

We used a professional Wagner steamer to melt the heavy ice gradually and expose the evaporator components. Steam allows a technician to work through thick frost without striking the aluminum coil or puncturing refrigerant tubing. Water was managed during the process so it did not collect around electrical connectors or controls.

Homeowners should not chip evaporator ice with knives or screwdrivers, apply an open flame, or aim uncontrolled high heat at plastic liners and sealed-system tubing. A punctured evaporator can turn an airflow repair into a much more expensive sealed-system failure.

Temperature sensor replacement and correct placement

After the ice was removed, we replaced the evaporator temperature sensor. Correct sensor placement is important: it must sit in the intended position and maintain proper contact so the refrigerator control receives an accurate evaporator-temperature reading. A loose or misplaced sensor can produce unreliable information and contribute to repeated icing or incorrect cooling operation.

The wiring and connector were checked during installation, and the new sensor was secured before the insulation and airflow components were put back in place.

Evaporator fan motor and foam housing replaced

We also replaced the evaporator fan motor together with its foam insulation and air-channel housing. The fan is responsible for drawing air across the cold evaporator and distributing it through the refrigerator. The surrounding foam is not cosmetic; it helps seal the airflow path so the fan sends cold air through the ducts instead of allowing it to escape around the assembly.

Once the new motor and foam housing were installed, we restored the sensor wiring, reassembled the evaporator cover and returned the interior components to their proper positions.

Cooling restored to the fresh-food compartment

After reassembly, the refrigerator started operating normally. Airflow returned, the fresh-food section began cooling again and the original not-cooling complaint was resolved. The customer was pleased to have the refrigerator working without the heavy frost obstruction.

If a refrigerator repeatedly develops a snowy rear wall, makes unusual fan noise or keeps the freezer cold while the fresh-food side becomes warm, the problem should be diagnosed before more ice accumulates. Defrosting alone may provide temporary relief, but a lasting repair requires identifying the failed sensor, fan, heater, control or airflow component.

KitchenAid KRSC703HPS00 model information

The appliance label identified this refrigerator as KitchenAid model KRSC703HPS00. The complete model number should always be checked before ordering a sensor, fan motor or foam air-channel component because similar KitchenAid refrigerators may use different revisions. No unverified service part number is being attributed to this repair.

Refrigerator repair in Danville

First Appliance Repair provides local refrigerator repair in Danville, complete appliance repair in Danville, and refrigerator repair service across the Bay Area.

Is your refrigerator warm, noisy or covered in frost? Book service online or call (510) 999-6091 for professional diagnosis and repair.