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Talk:Refrigerators on Shabbos: Difference between revisions
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(Created page with "See the discussion of old refrigerators on the main page. '''Refrigerators Today''' Today, manufacturers are introducing new electronic systems...") |
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See the discussion of old refrigerators on [[Refrigerators on Shabbos|the main page]]. | See the discussion of old refrigerators on [[Refrigerators on Shabbos|the main page]]. | ||
'''Refrigerators Today''' | '''Refrigerators Today''' | ||
Today, manufacturers are introducing new electronic systems into the refrigerator. | Today, manufacturers are introducing new electronic systems into the refrigerator. | ||
'''Auto Defrost ''' | '''Auto Defrost ''' | ||
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There are three methods used to turn on the defrost coil: | There are three methods used to turn on the defrost coil: | ||
''''''Method 1'''- Defrost Timers''' | ''''''Method 1'''- Defrost Timers''' | ||
In older refrigerators (1980), the defrost coil is activated with an internal timer. | In older refrigerators (1980), the defrost coil is activated with an internal timer. | ||
''''''Method 2'''- Adaptive Defrost''' | ''''''Method 2'''- Adaptive Defrost''' | ||
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This is a real problem to use on Shabbos. If the refrigerator door is opened, hot air that enters causes the temperature to rise and the compressor needs to run longer to keep the food cool. Longer compressor run time means the defrost cycle activates sooner than it would have. | This is a real problem to use on Shabbos. If the refrigerator door is opened, hot air that enters causes the temperature to rise and the compressor needs to run longer to keep the food cool. Longer compressor run time means the defrost cycle activates sooner than it would have. | ||
According to many poskim this is a serious concern. Causing the heating coil to ignite is d’oraysa- a biblical prohibition. The defrost coil is a gacheles shel mateches, which is classified as igniting a flame - havarah. | According to many poskim this is a serious concern. Causing the heating coil to ignite is d’oraysa- a biblical prohibition. The defrost coil is a gacheles shel mateches, which is classified as igniting a flame - havarah. | ||
'''Method 3- Electromagnetic Sensors''' | '''Method 3- Electromagnetic Sensors''' | ||
