What should I do if my AC is blowing warm air intermittently?
If your AC blows warm air on and off, start with quick checks, then schedule a diagnostic. Set the thermostat to Cool and lower it a few degrees. Replace the air filter. Clear debris around the outdoor unit and gently rinse the coils. Make sure the breaker is on and the condensate drain isn’t clogged. Intermittent warm air often needs a pro to check refrigerant charge, electrical connections, capacitors/contactors, and coil cleanliness per our Clean & Check.
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Updated: 2025-12-26
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Sources
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- [4]https://www.harkerheating.com/contact/
- [5]https://www.harkerheating.com/support/financing/energy-federal-tax-credits/
- [6]https://www.harkerheating.com/our-services/heating/
- [7]https://www.harkerheating.com/our-services/cooling/specialty-units/