Fuzzy Logic Defrosting

An overview of frost buildup levels, temperature ranges inside and outside, and door opening frequencies. It is designed to help you assess and manage refrigerator defrosting needs.

Frost Buildup

• Thin: Less than 2 mm
• Medium: 2 - 5 mm
• Thick: More than 5 mm

Temperature Inside

• 1 Very Cold: -18 to -8°C or 0 to 17°F
• 2 Cold: -10 to -1°C or 30 to 14°F
• 3 Moderate: 0 to 10°C or 32 to 50°F

Door Opening Frequency

• 1 Rarely: Less than 5 times/day
• 2 Occasionally: 5-7 times/day
• 3 Frequently: 8-10 times/day

Temperature Outside

• 1 Cold: Below 20°C or 68°F
• 2 Moderate: Between 20°C and 30°C or between 68°F and 86°F
• 3 Warm: Above 30°C or 86°F

Rules Table