HVAC ANSWERS · COOLING AND HEATING PROBLEMS
Ice or frozen coil
Canonical HVACentric knowledge for residential questions on this topic.
DIRECT ANSWER
Turn cooling off if ice is visible and do not chip or melt it with tools or heat. A frozen system can be associated with restricted airflow or other operating problems, and continued operation can cause damage. A qualified technician should inspect the filter, airflow, coil condition, blower operation, controls, drainage, and refrigerant circuit after the ice has thawed.
Questions this topic covers
These are examples of natural wording that map to this maintained topic. They are not separate pages or duplicate answers.
- Why is there ice on my AC line?
- My evaporator coil is frozen.
- The air conditioner is icing up.
- What should I do when the AC freezes?
- Ice is forming on the indoor unit.
Sources used for this answer
HVACentric uses public primary and authoritative sources as research anchors. Property-specific decisions still require direct verification.