Side-by-Side Refrigerator Not Cooling – What Part Fixes This Problem?
Need the replacement part? Search your model number at for guaranteed fit and fast free shipping.
Understanding the Problem
When a side-by-side refrigerator stops cooling properly it can be caused by several different systems failing. The fridge cooling relies on the sealed refrigeration system (compressor, capillary/tubes, and refrigerant), fans that circulate cold air between freezer and fresh-food sections, and defrost components that keep the evaporator coil from icing over. Identifying which system is at fault is the first step to a correct repair. Typical failures include a dead evaporator fan (no air movement from freezer to fridge), a bad start relay or compressor (compressor not running or struggling), frozen/iced evaporator coil from a defrost failure, or faulty temperature sensors/control board that mismanage compressor run cycles. This guide helps you recognize symptoms, inspect likely parts, and know when to call a technician for sealed-system work.
Common Symptoms
No cooling in refrigerator compartment, freezer either cold or warm, loud or no noise from compressor area, frost or heavy ice buildup on the evaporator coil, warm rear condenser area, or frequent on/off cycling.
Common Causes
- Failed evaporator (air circulation) fan motor preventing cold air transfer
- Bad compressor start relay/overload or failing compressor
- Defrost system failure causing evaporator coil to ice over (bad defrost heater, timer, or control/thermistor)
Popular Parts That Fix This Problem
These are the most common replacement parts that fix this problem. When you're ready to order, click below to find the right part at ProsourceParts.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
Start simple: listen for the compressor (low humming) and check if the evaporator fan runs when the freezer door is closed. If the compressor runs but there's no airflow from freezer to fridge, suspect the evaporator fan or an airflow blockage; if the compressor doesn't start, check the start relay/overload before assuming the compressor is bad.
Frequently Asked Questions
Can I diagnose and fix a non-cooling side-by-side refrigerator myself?
You can perform basic checks yourself: listen for the compressor, check that condenser coils are clean, confirm the evaporator fan runs, and look for heavy frost on the evaporator. Replacing fans, relays, gaskets, or boards is DIY-friendly if you’re comfortable with unplugging the appliance and basic tools. Do not attempt sealed-system repairs (compressor replacement, refrigerant work) yourself — those require certified HVAC/R service.
How much will it cost to repair a side-by-side refrigerator that isn't cooling?
Costs vary by the failed part: evaporator or condenser fan motors and relays are typically low-to-moderate cost ($50–$200 parts + labor). A control board or thermistor replacement can be $150–$400. Sealed-system repairs or compressor replacement are expensive (often $500–$1,500+) and sometimes approach the cost of a new fridge, depending on age and model. Get a diagnostic estimate from a qualified technician before authorizing major repairs.
Related How-To Videos
Real DIY Repair Stories
Be the first to share your repair story!
Share Your Repair Story
Your experience helps other homeowners fix their appliances. Tell us how it went!
Can't Fix It Yourself? Find a Local Technician
It's perfectly okay to call a professional. Some repairs require specialized tools, deep teardowns, or dealing with complex systems that are better left to the pros.
Find the Right Part for Your Appliance
Don't guess — search your exact appliance model number at ProsourceParts.com to find the correct OEM compatible replacement part. They offer fast free shipping, guaranteed fit, and thousands of parts in stock.
Your Free Parts Videos
Whether your dishwasher won't drain, your dryer stopped heating, or your fridge isn't cold, we've created simple repair guides for the most common appliance problems homeowners face. Each guide explains what's going wrong, the most likely causes, and which replacement parts fix the issue. When you're ready to order, we link directly to ProsourceParts.com where you can search by model number and get the right part shipped fast.