Identifying a refrigerant leak inside a residential home requires watching for specific performance failures in your heating and cooling equipment rather than relying on strong odors, since most modern refrigerants are completely odorless and colorless. Warning signs include your air conditioner running continuously twenty-four hours a day without cooling your home, warm air blowing from supply registers, and a solid block of ice encasing your indoor evaporator coil located above the furnace. Additionally, you might notice an unexplained spike in your monthly electricity bills as the struggling system works overtime, or hear a faint hissing sound near the indoor air handler cabinet. You can troubleshoot by turning off the system and inspecting coils. You can verify that a refrigerant leak is present when a licensed HVAC technician performs pressure tests and confirms low charge levels requiring repair.
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