GE GTS18GTHFRWW Refrigerator Not Cooling – What Part Fixes This Problem?
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Understanding the Problem
When a GE GTS18GTHFRWW (top-freezer style) stops cooling properly it can be caused by several different systems: airflow, refrigeration (sealed) system, defrost system or controls. Often the freezer temperature and evaporator frost pattern give the best clues — a warm freezer usually points to a sealed-system or compressor/start device problem, while a cold freezer and warm fridge often indicate an airflow or damper issue. Start with simple checks (power, condenser cleanliness, fans running) before assuming a major repair. Some failures — like a bad evaporator fan motor, failed start relay/overload, or defective thermistor/control board — can be replaced by a competent DIYer with basic tools. Sealed-system issues (compressor failure or refrigerant leak) require a licensed technician with refrigerant recovery equipment and are usually more expensive to repair.
Common Symptoms
Fridge warm while freezer cools (or both warm), compressor not running or only clicking, loud or abnormal noises, excessive frost on evaporator, fans not running, error codes on display or temperature fluctuations.
Common Causes
- Failed start relay/overload or compressor electrical failure causing the compressor not to run
- Evaporator or condenser fan motor failure reducing airflow across coils
- Defrost system failure (heater or thermostat) or sealed-system leak reducing refrigerant and cooling capacity
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 PartsDiscount.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
Listen at the rear: a healthy compressor should hum steadily. If you hear repeated clicking or the compressor tries to start then stops, first test/replace the start relay/overload. If the compressor never runs but has continuity issues or excessive heat, suspect a sealed-system failure and call a certified tech.
Frequently Asked Questions
Can I fix a sealed-system refrigerant leak or compressor failure myself?
No. Sealed-system repairs require refrigerant recovery, brazing, and vacuum equipment and must be done by a licensed HVACR technician. Attempting DIY sealed-system repair is unsafe, illegal in many regions, and may damage the appliance further.
How much will it cost to repair a GE GTS18GTHFRWW that isn’t cooling?
Costs vary: simple parts like a start relay or fan motor typically run $20–$150 plus labor. Defrost system fixes are moderate. Compressor or sealed-system repairs are expensive — often $400–$1,200 or more including parts and certified labor; in many cases replacing the refrigerator may be considered depending on age and condition.
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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 PartsDiscount.com where you can search by model number and get the right part shipped fast.