When it determines that it is time for a defrost cycle, it will shut down the compressor so that no refrigerant is coming into the evaporator and will run the evaporator fans to warm evaporator coils until they reach a target temperature that indicates that there is no ice remaining.
Back to Top. HiGreydays, i have felt a tight feeling in chest with panic attacks. the burning feeling i get also and i associate that to heartburn.I suggest to watch what you eat and log it into a diary to see what causes the burning in the chest.
The adrenaline rush will produce a faster and stronger than normal heartbeat. That's when you get the feeling of a butterfly or flutter in the chest.. Other causes for chest flutters may include: 1  Caffeine. 2  Alcohol. 3  Smoking. 4  Exercise. 5  Fever. 6  Over-the-counter medications such as diet pills or allergy medicine.