Why maintenance matters more in Las Vegas
An air conditioner here runs for months at a stretch, often at full capacity. Desert dust coats the outdoor condenser coil, which makes the system work harder to shed heat. Heat is also hard on electrical parts: capacitors and contactors wear out faster when the outdoor unit sits in direct sun at 110 degrees. A spring tune-up addresses exactly these weak points.
The payoff is fewer breakdowns in July, lower power bills, and a system that lasts longer. It is also the best time to find a slow refrigerant leak or a failing motor, when you can schedule the fix instead of waiting in a summer queue.
What a tune-up includes
- Cleaning the outdoor condenser coil and clearing debris around the unit
- Inspecting the indoor evaporator coil and blower, and cleaning where needed
- Testing the capacitor, contactor and electrical connections
- Checking refrigerant pressures and temperatures
- Measuring the temperature split and airflow
- Flushing the condensate drain line and checking the pan and float switch
- Replacing or recommending the right filter
- Checking the thermostat and its calibration
Cleaning
Dirty coils are the silent efficiency killer. A layer of dust on the condenser coil acts like a blanket, trapping heat the system is trying to release. A dirty evaporator coil or blower wheel restricts airflow and can lead to a frozen coil. We clean both, along with the drain line, which in our climate tends to collect sludge over a summer and back up into the house.
Year-round HVAC maintenance
Pair the spring AC tune-up with a fall heating check and you have year-round coverage. Heat pumps in particular do both jobs, so they benefit from a check before each season. If the tune-up turns up a problem, we give you the price for the repair before doing anything.
If the tune-up shows your system is losing refrigerant, we recommend leak repair rather than just adding more. And if your ducts are dusty or leaking, see duct cleaning and duct repair.
When to book
March through May is ideal, before temperatures climb and before every HVAC company in the valley is booked solid. That said, a tune-up is worth doing any time the system has not been serviced in a year. We schedule tune-ups across Las Vegas, Henderson, North Las Vegas, Summerlin, Paradise and Boulder City.
Small parts, big failures
Most summer breakdowns come from a handful of inexpensive parts. A tune-up tests each one.
Capacitors
The capacitor gives the compressor and fan motor the push they need to start. Heat weakens them over time, and a weak capacitor is the most common summer failure we see. We test it against its rating and replace it before it quits.
Contactors
The contactor is the switch that turns the outdoor unit on and off. Pitted contacts can stick or fail to close. We inspect and replace worn contactors.
Drain lines
Condensate lines clog with dust and algae over a summer. A clogged line can trip a float switch and shut the system off, or overflow into the ceiling. We flush it every tune-up.
What a tune-up cannot do
A tune-up keeps a healthy system healthy and catches small problems early. It will not make an undersized system big enough, fix leaking ducts in the attic, or bring a worn-out compressor back to life. If the tune-up turns up a bigger problem, we explain it and give you the options, whether that is duct repair, a leak repair or planning for replacement.
We also leave you with a short summary of what we checked and what we found, so next year's technician, whether it is us or someone else, knows the system's history.
Questions we hear a lot
How often should I have my AC serviced?
Once a year before summer, at minimum. Homes with pets, nearby construction or heavy dust may benefit from an extra filter check mid-summer.
How often should I change the filter?
Check it monthly during summer. Many Las Vegas homes need a new basic filter every one to two months in peak season.
Can I hose off the outdoor unit myself?
Gently rinsing loose dust from the outside of the coil with the power off is fine. Deep cleaning, electrical tests and refrigerant checks should be left to a technician.
Does a tune-up help my power bill?
A clean coil, a correct refrigerant charge and good airflow let the system cool the house in less time, which usually lowers run time. The biggest gains come on systems that have gone a year or more without service.