In terms of efficacy, there can be three types of interactions between medications: additive, synergistic, and antagonistic. 1  Additive interaction means the effect of two chemicals is equal to the sum of the effect of the two chemicals taken separately. This is usually due to the two chemicals acting on the body via same or similar mechanism. Examples are aspirin and motrin, alcohol and depressant, tranquilizer and painkiller.
Save. clean kitchen image by easaab from Fotolia.com. A refrigerator thermostat has only one function -- controlling the refrigerator's cooling system by turning it on or off to ensure that the temperature inside the fridge stays in the correct range of 33 to 40 degrees Fahrenheit.In frost-free models, a separate thermostat with a timer controls the defrosting cycle.ave. clean kitchen image by easaab from Fotolia.com. A refrigerator thermostat has only one function -- controlling the refrigerator's cooling system by turning it on or off to ensure that the temperature inside the fridge stays in the correct range of 33 to 40 degrees Fahrenheit.
Each defrost cycle can last up to 30 minutes. During the defrost cycle, the compressor and evaporator fans are turned off. A heater under the evaporator turns of and melts the ice and frost off of the evaporator. recommend measuring your normal operating temperatures in the refrigerator and freezer by the normal methods noted above. This refrigerator has an Adaptive Defrost Control board that initiates defrost cycles as needed between 6 and 72 hours apart based on compressor run times and other factors.