Lone Star Cooling and Heating

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What can we help you figure out?

Straight answers to the questions homeowners ask most — what is going wrong, what to choose, and when it is time to call.

Why is my AC blowing warm air?When the fan runs but the air is not cool, the system is moving air without removing heat from it. The usual causes are a thermostat setting, a clogged filter, an outdoor unit that has stopped running, a frozen indoor coil or a refrigerant leak.Read the answer
Should I repair or replace my AC?It depends on which part failed and the state of the rest of the system. A failed capacitor, contactor or fan motor is normally worth repairing. A failed compressor, a leaking indoor coil or a system that uses a refrigerant no longer produced is where replacement often becomes the better answer.Read the answer
Heat pump or furnace?A furnace makes heat by burning fuel or running electric heating elements. A heat pump moves heat from the outdoor air into the house, and also cools in summer. Which fits better depends on the climate, the fuel available and what the house already has.Read the answer

Something’s wrong

Making a decision

Understanding your system

Care & prevention