Mission Air Conditioning

If your AC is running but not cooling, there could be several reasons behind it. Some issues are simple fixes, while others require a professional repair. Understanding these causes will help you determine your next steps.

Common reasons your AC isn’t cooling include:

A dirty air filter restricting airflow
Low refrigerant levels due to a leak
A malfunctioning compressor affecting cooling performance
Frozen evaporator coils, often caused by restricted airflow
Thermostat settings that are incorrect or unresponsive
Outdoor unit obstructions blocking airflow
If basic troubleshooting doesn’t resolve the issue, it’s best to schedule a professional inspection. Continuing to run your AC with an underlying problem can lead to more damage and increased repair costs.

The most frequent AC repairs include refrigerant leaks that cause the system to lose cooling power, dirty air filters that restrict airflow, capacitor or contactor failures that prevent the system from turning on properly and thermostat malfunctions that affect temperature control.

Regular tune-ups can help prevent many of these common repairs, ensuring your AC runs efficiently throughout the year. If you’re experiencing cooling issues, Mission AC can diagnose the problem and get your system back in top shape.

Before calling for repairs, check your thermostat settings to ensure they are set correctly. Then, inspect the circuit breaker to see if it has tripped. A clogged air filter can also prevent airflow, so replacing a dirty filter might help. If these don’t solve the issue, it’s time to call an HVAC professional.

Heating systems can stop working without warning for a variety of reasons. In many cases, it’s due to something simple, like a tripped breaker, a dirty air filter or an issue with the thermostat. Other times, mechanical problems like a failed ignition system or blower motor could be to blame.

If you’ve checked the basics and the system still isn’t working, it’s time to call in a professional to get things back on track.

It’s frustrating to have your heater running but still feel the chill indoors. This situation could mean your system is running inefficiently or struggling to distribute heat properly. Sometimes the heater is working fine, but external issues — like poor insulation or leaky ductwork — are allowing warmth to escape.

In other cases, the heater itself may be undersized for your home, or its components could be dirty or worn out. A professional can help determine if your system is underperforming or if your home needs improvements to retain heat more effectively.

The answer to whether a heat pump is right for you will depend largely on your climate and heating priorities. If you live in a region with mild winters, a heat pump might be ideal since it provides both heating and cooling with excellent energy efficiency.

On the other hand, if you’re in an area with long, cold winters, a furnace will generally offer more powerful and reliable heating.

Other factors to consider include:


Your home’s insulation and size

Energy source availability (gas vs. electric)

Long-term energy savings vs. upfront costs

An HVAC expert from our team can help you evaluate your home’s needs and choose the best system for your comfort and budget.