Beat the Heat Wave Troubleshooting A/C Blowing Warm Air

The most frequent culprit behind an A/C blowing warm air is low refrigerant levels. Refrigerant is essential for absorbing heat from the air inside your home. Your A/C system could blow warm air if the outdoor unit loses power but the indoor one doesn't. The unit could have lost power due to a tripped circuit breaker ... It goes through for 3-4 hours blowing cold air, then suddenly it blows warm (or more like room temp) air out and obviously isn't cooling. It could be anything from restrictions in the system to your blend air door vents not working properly. The most common cause we see is low freon. The A/C will be blowing cold air just fine, then all of a sudden it starts blowing warm air. What I haven't determined yet, is if it starts blowing warm air ... Low Freon, bad ac relay, bad ac condenser, and/or bad compressor. Tacomike18, ... Table of contents · If your A/C is blowing hot air, it's safe to say it's probably leaking. · Adding a refrigerant with stop leak additive and O-ring ... 6 CAUSES OF AN AC BLOWING WARM AIR · 1. CLOGGED AIR FILTERS OF THE AIR CONDITIONER · 2. YOUR THERMOSTAT SETTINGS ARE INCORRECTLY · 3. THE OUTDOOR AC UNIT IS TOO ... The air coming out of the vents is still warm and usually about 5 minutes into my drive my A/C is working to full potential. This discussion is proudly sponsored by: Please support our sponsors and let them know you heard about their products on iRV2.