
Frequently Asked questions
Your HVAC cheat sheet for Murrieta, CA. Fast answers on AC repair, maintenance, and furnaces from Airtime Heating & Cooling.

Murrieta’s HVAC FAQ hub.
What is the $5000 AC Rule?
The “$5,000 AC Rule” is a quick way to decide if your Murrieta, CA air conditioner should be repaired or replaced. Multiply the repair cost by the age of your AC unit: if that number is over $5,000, replacement is usually the smarter long-term move. For example, a 10-year-old AC that needs a $600 repair equals $6,000, which points toward replacement. While it’s a solid guideline, other factors like energy efficiency, comfort, and repair frequency matter too. Read our full breakdown of the $5,000 Rule here and call Airtime Heating and Cooling to schedule your AC repair or replacement today.
What are the most common HVAC repairs?
In Murrieta, CA, the usual HVAC troublemakers are dirty air filters, thermostat hiccups, tripped breakers, and grimy condenser or evaporator coils. We also see refrigerant leaks, blower motor problems, electrical issues, and on gas systems, ignition or pilot light failures. Keep it simple: change filters, watch for short-cycling, and call a pro before a small issue becomes a comfort-killer. Read the full guide, then call Airtime Heating and Cooling to schedule your AC service today.
How much does AC service cost?
In Murrieta, CA, a routine AC service typically runs $120 to $250 per system, depending on size, condition, and access. Costs can increase if you need coil cleaning, specialty filters, or deeper diagnostics. Regular maintenance helps prevent surprise breakdowns and keeps energy bills steady. Read the full pricing guide and schedule your AC service today with Airtime Heating & Cooling.
Is furnace repair covered by homeowners insurance?
In Murrieta, CA, homeowners insurance may cover furnace repair or replacement if the damage comes from a covered event such as sudden tearing, cracking, or burning. Normal wear, age, or poor maintenance are not covered. If your furnace suddenly stops working, have it inspected by a licensed HVAC professional before filing a claim. Read our full breakdown and call Airtime Heating & Cooling for expert furnace repair in Murrieta today
What is the life expectancy of an AC unit?
In Murrieta, CA, most air conditioners last between 10 and 20 years, with many well-maintained systems running closer to 15 years or more. Factors like regular maintenance, quality installation, and local climate have a big impact. Coastal and high-heat areas can shorten the lifespan, while annual tune-ups help extend it. If your system is over 15 years old, needs frequent repairs, or struggles to keep rooms cool, it may be time to consider a replacement. Read our full guide
What’s the average life of an HVAC system?
In Murrieta, CA, most HVAC systems last between 15 and 25 years, depending on how well they’re maintained, how often they’re used, and the quality of installation. Air conditioners and heat pumps typically run 10 to 15 years, while furnaces often last 15 to 20 years. Regular maintenance, filter changes, and annual inspections are the key to keeping your system efficient and long-lasting. Read our full guide and call Airtime Heating & Cooling to schedule your HVAC service in Murrieta today: Read our full guide
Is it better to repair or replace a furnace?
Whether it’s better to repair or replace your furnace depends on its age, efficiency, and the cost of repair. If your furnace is under 15 years old and the fix costs less than half of a new unit, repair usually makes sense. But if it’s over 15 years old, struggles to heat evenly, or needs expensive parts, replacement is often the smarter long-term choice. In Murrieta, CA, where heaters get moderate use but still need reliability on chilly winter nights, homeowners can count on AirTime Heating & Cooling for honest furnace repair and replacement advice. Read our full guide here
What is the most common circuit found in HVAC?
The most common circuit you’ll find in HVAC systems is a series circuit, especially in heating, air conditioning, and refrigeration equipment. Series circuits keep components connected along a single electrical path, which makes them the simplest to read, test, and troubleshoot. Because every part depends on the next, a single failure can shut down the entire system—one reason accurate diagnostics matter. Homeowners in Murrieta, CA can rely on AirTime Heating & Cooling for expert furnace and AC service backed by proper electrical testing.
Read the full blogHow to know if an AC compressor is bad?
You can often tell an AC compressor is going bad if your system blows warm air, airflow feels weak, or the outdoor unit starts making grinding, rattling, or clicking noises. Frequent breaker trips, a compressor that never seems to kick on, or signs of refrigerant leaks or moisture around the outside unit are other strong red flags. Because the compressor is the heart of your cooling system and an expensive part to replace, it is important to have a licensed HVAC technician test the unit, verify refrigerant levels, and check electrical components before you keep running it. Homeowners in Murrieta, CA can call AirTime Heating & Air for expert diagnostics and ac repair if they suspect a failing compressor.
Read the full blogWhat does AC tune up include?
An AC tune-up includes cleaning the coils, checking electrical connections, testing the thermostat, inspecting ductwork, and verifying refrigerant levels to keep your system running at peak performance. Technicians also clear the condensate drain, lubricate moving parts, and test safety components to catch issues early. A full tune-up ensures stronger airflow, better efficiency, and fewer breakdowns during the summer. Homeowners in Murrieta, CA can trust AirTime Heating & Cooling to perform a thorough ac service that keeps their system operating reliably all season long.
Read the full blogHow do I know if my AC needs servicing?
Your AC likely needs servicing if it starts blowing warm air, produces weak airflow, or leaves your home feeling humid even when it’s running. Moisture around the unit, rising energy bills, strange noises, uneven room temperatures, or musty or burning odors are also clear signs something isn’t right. These issues usually point to clogged coils, low refrigerant, electrical problems, or airflow restrictions that only get worse with time. Homeowners in Murrieta, CA can call AirTime Heating & Cooling for a thorough ac service to keep their system running efficiently and prevent costly breakdowns.
Read the full blogHow often should the house AC be serviced?
Most homes should have their AC serviced twice a year, usually once in the spring before cooling season and once in the fall before heating season. These tune-ups keep the system clean, make sure all components are in good working order, and help it run as efficiently as possible. Skipping maintenance can lead to weak airflow, higher energy bills, and surprise breakdowns during the hottest months. Homeowners in Murrieta, CA can rely on AirTime Heating & Cooling for thorough ac service that keeps their system running strong year-round.
Read the full blogCan a faulty furnace cause a fire?
Yes, a faulty furnace can cause a fire, especially if it has damaged wiring, dirty or clogged filters, blocked air vents, or worn-out components that lead to overheating. Poor installation or skipping routine maintenance can also allow small issues to escalate into dangerous conditions inside the system. When airflow is restricted or electrical parts fail, the furnace can overheat and ignite surrounding materials. Homeowners in Murrieta, CA should have AirTime Heating & Cooling perform regular furnace repair and safety inspections to keep their system operating safely.
Read the full blogHow often should a home furnace be serviced?
A home furnace should be serviced once a year by a qualified HVAC technician, ideally in early fall before heating season begins. Annual service helps ensure safe operation, steady efficiency, and reliable heat when temperatures drop. Skipping maintenance can allow safety issues, higher energy use, or unexpected breakdowns to develop. Homeowners in Murrieta, CA can rely on AirTime Heating & Cooling for professional furnace repair and annual maintenance that keeps their system dependable all winter.
Read the full blogHow do I tell if my furnace ignitor is bad?
You can tell a furnace ignitor may be bad if your system struggles to start, blows cold air, short cycles, or makes repeated clicking, popping, or booming noises. A failing ignitor may also show visible cracks, discoloration, or fail to glow when the furnace attempts to heat. Because ignition problems can affect safety and prevent proper heating, professional testing is strongly recommended. Homeowners in Murrieta, CA should call AirTime Heating & Cooling for accurate furnace repair and ignitor diagnostics before the issue worsens.
Read the full blogHow often does AC need freon?
A properly working AC should never need Freon added because refrigerant circulates in a sealed system. If your AC needs refrigerant, it usually means there is a leak causing warm air, icing on the lines, or hissing noises. Adding Freon is not routine maintenance and should only happen after a leak is professionally located and repaired. Homeowners in Murrieta, CA should call AirTime Heating & Cooling for expert ac repair and refrigerant leak detection to protect their system and efficiency.
Read the full blogHow to tell if AC is low on refrigerant?
You can tell your AC may be low on refrigerant if it blows warm or weak air, runs longer than normal, or your energy bills suddenly spike. Ice on the refrigerant lines or evaporator coil, hissing or bubbling sounds, and poor cooling throughout the home are also common warning signs. Low refrigerant usually means there is a leak that needs professional repair, not just a recharge. Homeowners in Murrieta, CA should contact AirTime Heating & Cooling for expert ac repair and refrigerant leak diagnostics.
Read the full blogWhat does annual HVAC maintenance include?
Annual HVAC maintenance includes cleaning coils, filters, and drain lines, inspecting electrical components, checking refrigerant levels, lubricating moving parts, and testing overall system operation. For furnaces, technicians also inspect the heat exchanger, ignition system, and perform safety checks such as carbon monoxide testing. This service helps improve efficiency, prevent breakdowns, and extend equipment life. Homeowners in Murrieta, CA can trust AirTime Heating & Cooling for thorough annual HVAC maintenance that keeps their system safe and reliable year-round.
Read the full blogDoes AC service include freon check?
Yes, a standard AC service includes checking refrigerant levels to make sure your system is cooling properly. If levels are low, it often signals a leak since refrigerant does not get used up during normal operation. A technician will look for signs of leaks and recommend repairs before adding refrigerant. Homeowners in Murrieta, CA can trust AirTime Heating & Cooling for honest ac service and accurate refrigerant diagnostics.
Read the full blogWhat Our Customers Say
Prompt, friendly & competitively priced. My mother-in-law’s 25yo heater stopped working. We called a number of companies for bids. We chose to work with Airtime and the next morning they had the new heater installed. Highly recommend ~ great company 👍
Decided to call Airtime for their AC and Heating tune up special. Dylan and Brayton came out to my home, and were very thorough and polite. They explained all of the items they checked. They also noticed the insulation on my unit outside was tore up, and they took care of it as part of their service. (Hey, it’s the little details that count). Overall I had great service and will definitely be in touch with Airtime for any of my heating or AC needs in the future.
Just had my heating tuneup. Wayne is always a pleasure to work with. He scheduled me for the day and time I requested. Brayten did the tuneup and was very personable, respectful, and knowledgeable. Did an awesome job. He also took a look at my AC and made a few recommendations for the future. Signed up for their Scheduled Service Plan.
