There are few things more frustrating than your air conditioner failing on a sweltering Murrieta day. When your system is running but not blowing cold air, it's a clear sign that something is wrong. At J & M Air Conditioning & Heating, we've handled countless such calls and want to share the most common culprits we find.
Why Your AC Isn’t Blowing Cold Air in Murrieta
Why Your AC Isn’t Blowing Cold Air in Murrieta

Check for a Dirty Air Filter
This is the simplest fix and the first thing you should check. A clogged filter chokes the airflow to your system. Without enough air moving over the evaporator coils, the cooling process is severely hampered, and the air coming from your vents will feel weak and not nearly as cool as it should.

Verify Your Thermostat Settings
It may sound obvious, but we often find the solution is in the settings. Ensure your thermostat is set to "Cool" and not "Fan" or "Fan Only." The fan setting will circulate air, but it won't engage the cooling components of your outdoor unit, resulting in room-temperature air blowing through your vents.

Low Refrigerant Levels
Refrigerant is the substance that absorbs heat from your home. If your system is low on refrigerant, it's because there is a leak. This is a job for professionals, as handling refrigerant requires certification. This is a critical part of air conditioning maintenance in Murrieta that prevents damage to the compressor.

Dirty Outdoor Condenser Coils
The outdoor unit's job is to release the heat that was removed from your home. If the condenser coils are caked in dirt, dust, and debris, they can't release heat effectively. The system will struggle to cool and may even overheat, leading to a complete shutdown and poor performance for your air conditioning in Murrieta.
When your AC lets you down, it can often be traced back to one of these common issues. While some are simple fixes, others require expert attention. For reliable diagnostics and service, you can trust our team. Learn how J & M Air Conditioning & Heating can get your home cool and comfortable again.