Indoor unit freezes up with ice on the evaporator coil

Safety: Turn off the system and allow ice to melt completely before further operation.

• Replace filter: Install a clean filter and ensure all registers are open.
• Check blower: Verify strong airflow from supply vents. If weak, inspect blower motor and wheel.
• Adjust thermostat: Avoid setting the thermostat extremely low (e.g., below 68°F) in humid conditions.
• Call technician if recurring: Repeated icing after airflow corrections suggests low refrigerant or metering device issues.