Refrigerator Normal Run Time
For a freezer to maintain a desired temperature of 0 degrees F or a combination refrigerator-freezer to maintain a 5 degrees F freezer and 35 - 40 degrees fresh food temperature, the compressor will usually run much of the time.
Newer refrigerators have smaller, more powerful, high-speed compressors that generally cost less to operate than those in older refrigerators. These compressors are designed to run 80 % to 90% of the time. This makes them more energy efficient because the greatest amount of energy used when the compressor cycles on.
Factors that contributes to run time:
- In extremely hot, humid areas, run time may approach 100%.
- Loading the refrigerator or freezer with a large amount of food, especially warm or hot foods.
- An empty or lightly loaded freezer. The freezer should be at least 3/4 full to maintain proper temperatures and reduce time.
- When the door is opened, some of the heavy cold air slides out of the cabinet, pulling warm air in at the top.
- Damaged or dirty door gaskets. See Refrigerator Interior and Gasket Care and Cleaning.
- Blocked air vents in the freezer section.
- Dirty condenser coils on model that do not have a NeverClean condenser. See Cleaning Condenser Coils on Refrigerator
- Interior light not turning off when door is closed.
The below are all exceptions to the above:
- All 14 and 16 cu. ft. (TBX/CTX models vs.TBF models of past) will have an average run time of between 40 and 52% as do compact models,(TA2,4,6).
- Cycle defrost and single door models will run slightly less, 30-60%.
- Chest & Upright freezers run 75% to 90% of the time.