The short answer
A Cool Living freezer that is not holding temperature is usually being defeated by where it lives or by the frost inside it, not by a failed sealed system. On a mechanical-thermostat cabinet, a cold garage in winter and a heavy frost blanket are the two causes that beat everything else. Both are owner-fixable.
What you are actually seeing
- Contents are soft or partly thawed while the cabinet still hums — Means: on-page
- The freezer holds temperature in summer but not in winter, or the reverse — Means: on-page
- Thick frost covers the walls, the lid or the shelves — Means: on-page
- The compressor runs constantly and never cycles off — Means: on-page
- An external thermometer reads well above 0 °F (−18 °C) — Means: on-page
- The cabinet is silent and dark with no hum at all — Means: different-fault — Go to: cool-living-freezer-control-fault
- Water pooling under the cabinet as it warms — Means: different-fault — Go to: cool-living-freezer-water-leak
- Body: Match what you see before you move anything. Contents are soft or partly thawed while the cabinet still hums. The freezer holds temperature in summer but not in winter, or the reverse. Thick frost covers the walls, the lid or the shelves. The compressor runs constantly and never cycles off. An external thermometer reads well above 0 °F (−18 °C). Some near-miss symptoms belong on a different page: The cabinet is silent and dark with no hum at all points at a power or thermostat failure rather than a cooling loss, covered on cool-living-freezer-control-fault; Water pooling under the cabinet as it warms points at the meltwater path, covered on cool-living-freezer-water-leak.
Causes, ranked for this machine
- Ambient temperature outside the range printed on the rating plate — Why this rank: First because so many of these cabinets live in a garage or a basement, and a mechanical thermostat reading cold garage air simply stops calling for cooling
- A heavy frost blanket from a manual-defrost cabinet that has not been defrosted — Why this rank: Frost insulates the very surfaces that are meant to absorb heat, so the cabinet works harder and cools less
- A blocked condenser or too little clearance around the cabinet — Why this rank: Dust and stored boxes are free to fix and are extremely common in garage installations
- A lid or door gasket not sealing, letting warm humid air in continuously — Why this rank: This both raises the load and feeds the frost that causes the second cause above
- A failed thermostat, fan or sealed system — Why this rank: Last because it is the only cause needing a part, and the four above it are free to rule out
- Body: Ranked for a budget standalone freezer with a mechanical thermostat and manual defrost, usually living in a garage or a basement. Most likely: Ambient temperature outside the range printed on the rating plate. First because so many of these cabinets live in a garage or a basement, and a mechanical thermostat reading cold garage air simply stops calling for cooling. Next most likely: A heavy frost blanket from a manual-defrost cabinet that has not been defrosted. Frost insulates the very surfaces that are meant to absorb heat, so the cabinet works harder and cools less. Third: A blocked condenser or too little clearance around the cabinet. Dust and stored boxes are free to fix and are extremely common in garage installations. Fourth: A lid or door gasket not sealing, letting warm humid air in continuously. This both raises the load and feeds the frost that causes the second cause above. Fifth: A failed thermostat, fan or sealed system. Last because it is the only cause needing a part, and the four above it are free to rule out.
What to check, in order
- Put a thermometer in the cabinet and read it after several hours, before changing anything
- Compare the room temperature against the ambient range on the rating plate
- Empty the cabinet and defrost it completely if there is any significant frost
- Pull the cabinet out, clean the condenser and restore clearance on every side
- Body: Each check rules out the causes above it. First, put a thermometer in the cabinet and read it after several hours, before changing anything. Second, compare the room temperature against the ambient range on the rating plate. Third, empty the cabinet and defrost it completely if there is any significant frost. Fourth, pull the cabinet out, clean the condenser and restore clearance on every side.
Checks you can safely make yourself
- Place a thermometer in the middle of the load and read it after several hours, so you are diagnosing a measurement rather than a feeling — Tools: freezer thermometer — Time estimate: several hours
- Read the ambient range on the rating plate and compare it with the actual room temperature at its coldest — Tools: room thermometer — Time estimate: a few minutes
- Move the contents to a cooler, unplug the cabinet, and let it defrost fully with the lid open and towels down — Tools: cooler, towels — Time estimate: several hours to a day
- Unplug the cabinet, pull it clear of the wall and vacuum the condenser coil or the rear panel clean of dust — Tools: vacuum, brush — Time estimate: a quarter of an hour
- Restore clearance on all sides and at the back, then run the cabinet empty for a day and read the thermometer again — Tools: none — Time estimate: a day
- Body: Checks an owner can make with the freezer unplugged or simply observed. Step one: Place a thermometer in the middle of the load and read it after several hours, so you are diagnosing a measurement rather than a feeling. Tools: freezer thermometer. Time: several hours. Step two: Read the ambient range on the rating plate and compare it with the actual room temperature at its coldest. Tools: room thermometer. Time: a few minutes. Step three: Move the contents to a cooler, unplug the cabinet, and let it defrost fully with the lid open and towels down. Tools: cooler, towels. Time: several hours to a day. Step four: Unplug the cabinet, pull it clear of the wall and vacuum the condenser coil or the rear panel clean of dust. Tools: vacuum, brush. Time: a quarter of an hour. Step five: Restore clearance on all sides and at the back, then run the cabinet empty for a day and read the thermometer again. Tools: none. Time: a day.
Safety first
Safety
Unplug the cabinet before cleaning the condenser, and never chip frost off with a knife or a screwdriver: the walls contain the cooling circuit and puncturing them ends the appliance. A freezer holds food safely at 0 °F (−18 °C) or below. Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. freezer-0f unplug-before-service
Where the owner fix ends
Call a technician when the ambient is within range, the cabinet has been fully defrosted, the condenser is clean with proper clearance, the gasket seals, and a thermometer still reads above 0 °F (−18 °C) after a full day. That points at the thermostat or the sealed system, and sealed-system work is not owner work.
Nearest pages of the same kind
Generalized information
This page is generalized across the Cool Living freezer line. Chest and upright cabinets, manual-defrost and frost-free variants share the ranking above but not every part, and this page does not cover a specific model or thermostat revision. Family- and model-specific pages, where they exist, are linked below.
Links: - [Common Cool Living Freezer Problems](/blog/cool-living-freezer-problems) - [Cool Living Freezer: Abnormal Noise or Vibration](/blog/cool-living-freezer-abnormal-noise) - [Cool Living Freezer: Controls, Display or Error Code](/blog/cool-living-freezer-control-fault) - [Cool Living Freezer: Door, Latch or Seal Fault](/blog/cool-living-freezer-door-seal)
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
