When your air conditioner is not working the way it should, it can be frustrating fast. Maybe your home feels warm even though the AC is running, the system will not turn on, or the air coming from the vents just does not feel cool.

Before you assume the worst, there are a few simple things you can check. Sometimes the issue is an easy fix. Other times, these steps can help you explain what is happening when you call for service.

At Missoula Heating & AC, we believe in straightforward answers, honest service, and helping homeowners across Missoula and Western Montana feel more prepared.

AC Troubleshooting Checklist:

1. Check your thermostat
   Make sure your thermostat is set to “cool” and that the temperature is set lower than the current temperature inside your home. Also check the batteries if your thermostat uses them
2. Look at the fan setting
   If the fan is set to “on,” it may run constantly even when the system is not cooling. Setting it to “auto” allows the fan to run only when the AC is actively cooling.
3. Replace your air filter
   A dirty filter can restrict airflow and make your AC work harder than it should. If the filter looks dusty or clogged, replace it and give the system time to adjust.
4. Make sure vents are open
   Walk through your home and check that your vents and registers are open. Closed vents can affect airflow and make certain rooms feel warmer.
5. Clear anything blocking vents
   Furniture, rugs, curtains, or pet beds can block airflow without you realizing it. Make sure each vent has room to move air into the space.
6. Check the outdoor unit
   Your outdoor AC unit needs space to breathe. Clear away grass, leaves, branches, cottonwood, or other loose debris around the unit.
7. Look for ice or frost
   If you see ice on the outdoor unit, refrigerant lines, or indoor components, turn the system off and call a professional. Ice can be a sign of airflow or refrigerant issues.
8. Check your breaker
   If your AC will not turn on, check your electrical panel. If the breaker has tripped, you can reset it once. If it trips again, do not keep resetting it.
9. Listen for unusual sounds
   Banging, grinding, screeching, rattling, or buzzing sounds should not be ignored. These can point to loose, worn, or damaged parts.
10. Pay attention to strange smells
    A strong burning, electrical, musty, or mildew-like smell can be a sign that something is wrong. If the smell continues, it is best to turn the system off and schedule service.
11. Notice uneven cooling
    If some rooms stay much warmer than others, there may be an issue with airflow, ductwork, thermostat placement, or system performance.
12. Watch for constant running
    If your AC runs all day but your home still does not cool down, the system may be struggling to keep up. This can happen because of maintenance issues, airflow problems, or aging equipment.

When to Call Missoula Heating & AC
If you have gone through the checklist and your AC is still not working properly, it is time to call a professional.

Missoula Heating & AC is here to help homeowners across Missoula and Western Montana with reliable AC repair, maintenance, and system service. We will take a clear look at what is going on, explain your options, and help you find the right next step for your home.

If your AC is not keeping up, contact Missoula Heating & AC to schedule a service call.

Wildfire smoke is part of life in Western Montana, and in Missoula, it can move in quickly. One day, the windows are open, and the next day the valley is covered in haze. When outdoor air quality drops, your home should be a place where the air feels as clean and comfortable as possible.

Getting smoke ready ahead of time can make a big difference. A few simple steps before the smoke season gets heavy can help reduce how much smoke gets inside and help your HVAC system do its job more effectively.

One of the best places to start is your HVAC filter. During smoke season, your system may be working harder than usual to move air through your home. A clean, properly fitted filter helps support better indoor air quality and keeps your system from being overloaded. Some homes may benefit from a higher-rated filter, such as MERV 11, 12, or 13, but not every system can handle the same filter. Before upgrading, it is important to make sure your system can still move air properly.

A few simple ways to help prepare your home:

1. Check your HVAC filter before the smoke season gets heavy
2. Keep extra filters on hand, especially during the summer months
3. Ask a professional what filter rating your system can safely handle
4. Keep windows and exterior doors closed on smoky days
5. Use recirculation settings when available
6. Consider running your HVAC fan if your system is designed for it
7. Create one cleaner-air room with a portable HEPA air purifier
8. Avoid candles, fireplaces, incense, and smoky cooking during heavy smoke
9. Schedule maintenance before your system is working its hardest

It can also help to choose one room in your home to keep as your cleaner-air space. This could be a bedroom, living room, or another area that is easy to close off. Adding a portable HEPA air purifier can provide extra support, especially during days when the smoke lingers.

Smoke readiness is not just about comfort. It is about helping your home stay healthier when the outdoor air quality drops. Regular HVAC maintenance can help make sure your system is clean, your filter fits correctly, and your airflow is where it should be before the smoke season gets worse.

If you are not sure what filter your system can handle or how to prepare your home for wildfire smoke, Missoula Heating & AC can help. Call us to schedule a system check and get your home smoke ready before the next wave of smoke rolls in.

We’re glad you’re here. This blog is where we’ll share helpful information for homeowners and businesses in Missoula who want to understand their heating and cooling systems better, stay ahead of seasonal maintenance, and feel more confident caring for their HVAC equipment.

Each month, you can expect:

• practical tips for keeping your system running efficiently
• educational posts about heating, cooling, and indoor air quality
• common HVAC issues
• seasonal reminders to help you prepare for Montana’s changing weather
• updates about the services we offer here at Missoula Heating & AC

Whether you’re getting ready for summer AC season, preparing your furnace for colder months, wondering when it’s time to schedule maintenance, or looking for trusted heating and cooling services in Missoula, you’re in the right place.

We’re proud to serve the Missoula community with reliable HVAC service, honest guidance, and local experience you can count on. Thanks for being here. We look forward to helping you keep your home or business comfortable year-round.

Call 406-274-2064 to schedule a service today!