KitchenAid Refrigerator Warm Temp & Defrost Heater with Bimetal Sensor Repair in Del Mar
Initial Customer Complaint: Fresh Food Section Warm in Del Mar Residence
A homeowner in Del Mar (92014) scheduled an emergency service call for their French-door KitchenAid refrigerator. While the freezer section remained cold, the fresh food compartment temperature had risen to an unsafe 48°F, causing food spoilage and constant compressor running.
Initial field diagnostic measuring warm temperatures in the fresh food compartment.
Master Technician Field Diagnostics
Our master technician unmounted the rear freezer back panel to inspect the refrigeration airflow loop:
- 1Evaporator Coil Frost Inspection: The evaporator coil fins were completely encased in a thick block of frost and ice, completely choking off cold airflow to the upper fresh food damper duct.
- 2Defrost System Electrical Testing: Used a digital multimeter to test electrical continuity across the defrost circuit components:
Inspection revealing heavy frost accumulation blocking evaporator airflow.
Multimeter continuity testing confirming open circuit on the defrost heater element and bimetal sensor.
Repair Execution: Defrost Heater & Bimetal Thermostat Replacement
With customer authorization, our technician executed the complete defrost system overhaul:
- Evaporator Coil Steam Defrost: Safely melted all accumulated ice blockages using a professional high-temperature heat steamer without damaging aluminum fins.
- OEM Heater & Bimetal Installation: Installed a genuine factory OEM KitchenAid calrod defrost heater element and clipped a new calibrated bimetal defrost thermostat onto the coil header.
- Drain Line Clearing: Flushed the condensate drain tube with hot water to ensure meltwater flows freely into the drain pan.
Installation of the new OEM KitchenAid defrost heater element and bimetal thermostat sensor.
Final Operational Testing & Verification
Following component replacement, our technician forced an electronic defrost cycle to confirm proper operation:
- Heater Activation: The new heater element energized instantly, glowing at optimal wattage to melt frost.
- Temperature Restoration: The refrigerator section cooled down rapidly, maintaining target temperatures of 37°F in the fresh food section and 0°F in the freezer.
- Condensate Drainage: Verified clean water drainage into the lower drip pan.
Final operational check confirming clean evaporator coils and precise 37°F fresh food section cooling.
Transparent Invoice & Cost Breakdown
We believe in 100% upfront pricing with zero hidden fees:
- Diagnostic Visit & Multi-Point Inspection: $99.95 *(100% FREE & Waived with completed repair)*
- Genuine OEM KitchenAid Defrost Heater, Bimetal Sensor Probe & Installation: $387.00
- Total Investment: $387.00
- Warranty Included: 90-Day Parts & Labor Warranty
Preventative Maintenance Tip for Refrigerator Owners
If you hear your refrigerator fan making a ticking or clicking noise coming from behind the freezer wall, it is often the fan blades hitting ice buildup. Having a technician test the defrost heater early prevents full airflow blockage and food spoilage.
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$99.95 Technician Diagnostic Visit • 100% Waived With Completed Repair.
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