GE GIE18GSNRSS 18 cu ft Top Freezer Stainless MECH-NOTCOOL Error Fix: Refrigerator Not Cooling — Both Compartments Warm

Error code MECH-NOTCOOL on the GE GIE18GSNRSS 18 cu ft Top Freezer Stainless means: Refrigerator Not Cooling — Both Compartments Warm. Both the refrigerator and freezer sections are warm — the most common cause is a failed compressor start relay (the small component plugged into the side of the compressor); the start relay is an inexpensive part ($15-30) and the most common fix; perform the "shake test" — remove the relay from the compressor and shake it; if you hear a rattle inside, it has failed; other causes include a failed compressor (check winding resistance), low refrigerant (sealed system leak), or a failed compressor overload protector

The most successful fix is "Test Compressor Windings and Replace Overload Protector" (hard difficulty, ~60 minutes). Estimated DIY cost: $0-$20. HomeMD has 2 community-ranked fixes for this error.

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Yes — the top-ranked community fix ("Test Compressor Windings and Replace Overload Protector") is rated hard difficulty and takes about 60 minutes. Tools needed: T20 Torx screwdriver, Multimeter, Needle-nose pliers, Flashlight.

DIY cost: $0-$20. Professional repair typically costs $200-$350. Many homeowners save money by trying the top-ranked community fix first.

The GE GIE18GSNRSS 18 cu ft Top Freezer Stainless has 8 other known error codes, including: 88 (Display Board Power Surge), CC (Temperature Too Warm — Condition Critical), CI (Ice Maker Error), dE (Defrost System Error), DF (Defrost Circuit Failure), and 3 more.

Error code MECH-NOTCOOL also appears on 12 other GE models: GFE26JYMFS 26 cu ft French Door with Ice & Water, GFE28GYNFS 27.8 cu ft French Door Refrigerator with External Water Dispenser, GNE25JMKES 24 cu ft Bottom Freezer French Door, GNE27JSMSS 27 cu ft French Door Refrigerator with External Water and Ice Dispenser, GNE27JYMFS 27 cu ft Energy Star French Door, GSE25GGPBB 25 cu ft Side-by-Side with External Dispenser, and 6 more. The fix may vary by model, so check each model's specific page for tailored repair steps.