Frequently Asked Questions About HVAC Service
Quick, expert answers to the most common HVAC questions Palmdale property owners have about repair, installation, and maintenance, from the professionals at Preciado Air Conditioning.
Whether you’re performing furnace troubleshooting, planning a major system upgrade, or just wondering how often to service your unit, you'll find reliable, expert answers here. Our team at Preciado Air Conditioning has helped homeowners and businesses across Palmdale and the Antelope Valley stay comfortable for over 20 years. We believe informed customers make the best decisions for their property.
Here are some of the most common questions we get—covering everything from emergency
AC repair FAQs to detailed
heating maintenance questions—and what every customer should know before calling for service.
General HVAC Questions
How often should I schedule HVAC maintenance?
For most homes and light commercial properties in the Antelope Valley, we recommend scheduling professional preventative maintenance twice per year—once in spring before the critical cooling season (pre-summer AC tune-up) and once in fall before the heating season (pre-winter furnace check). This crucial service helps improve efficiency, prevents unexpected breakdowns, and is often required to keep your manufacturer's warranty valid, ultimately extending the life of your system.
Learn more about HVAC Maintenance Services
What’s the average lifespan of an HVAC system?
Most standard HVAC systems last 12 to 15 years on average. However, with consistent annual maintenance and proper usage, some high-efficiency units can last up to 20 years. If your system is over 10 years old, it often benefits from a professional evaluation to gauge its remaining life and determine the most cost-effective time for replacement.
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HVAC Installation and Replacement
How can I tell if I need HVAC repair or replacement?
Determining between repair and replacement is based on cost, age, and efficiency. If your system is over 10-12 years old, requires frequent, expensive repairs, produces uneven temperatures, or is causing a noticeable spike in your utility bills, it may be more cost-effective in the long run to replace it. We use the "50% rule": if the repair cost is more than 50% of the cost of a new system, replacement is generally recommended. Our technicians can perform a full system evaluation to help you decide.
How quickly can you respond to emergency HVAC issues?
We prioritize your comfort and safety. We offer 24/7 emergency repair service for system failures in Palmdale, Lancaster, and all nearby cities in the Antelope and Santa Clarita Valleys. Our team responds as quickly as possible, specifically prioritizing system failures during periods of extreme heat or cold.
[Request Emergency HVAC Repair] [/services/hvac-repair/].
What brands do you service or install?
Our certified local HVAC technicians are trained to diagnose, repair, and install all major brands. This includes Trane, Lennox, Carrier, Goodman, Rheem, York, Daikin, and more. We work with both older models requiring specific knowledge and the latest high-efficiency, communicating systems.
AC Repair & Cooling Questions
Why is my AC running but not cooling?
This is one of the most common AC repair FAQs. It could indicate a severe refrigerant leak, dirty condenser coils blocking heat transfer, or a failing compressor or capacitor. If this happens, immediately turn off your system to prevent compressor damage and contact a certified technician.
How often should I replace my AC filter?
You should check and replace your standard 1-inch filters every 1–3 months, depending on usage, filter type, and indoor air quality (pets, dust, etc.). Dirty filters drastically reduce airflow, strain the system, and are the fastest way to increase energy bills. Our preventative maintenance plans include filter replacements at every visit.
What’s the best thermostat setting for summer?
For most homes,
78°F is recommended by energy experts as the optimal cooling temperature for achieving efficiency without sacrificing comfort. If you are away from home, increasing the setting by 5–8 degrees (e.g., to 83°F) can save significant energy. Investing in a programmable or smart thermostat makes it easy to manage these temperature schedules automatically.
Can I improve my home’s air quality through my HVAC system?
Absolutely. The HVAC system is the engine for your home's air circulation. You can improve air quality by upgrading to HEPA or MERV-rated filters, installing whole-home UV light purifiers to kill airborne pathogens, and regularly having your ducts cleaned and sealed. Ask about our indoor air quality (IAQ) solutions during your next maintenance visit.
Heating & Furnace Questions
Why is my heater blowing cold air?
This is a key part of furnace troubleshooting. This often indicates a problem with the ignition system (pilot light or electronic igniter), a dirty flame sensor, or a fuel supply issue. It could also mean the system is cycling improperly due to a dirty filter or a thermostat issue. Turn off your system and schedule a service call immediately to avoid further damage or potential safety issues.
How do I know if my furnace needs replacement?
If your system is over 15 years old, struggles to maintain a consistent temperature, or makes loud, unusual noises (banging, grinding, rattling), it is likely nearing the end of its life. Also look for corrosion or a yellow pilot light (gas furnaces). Our
furnace troubleshooting includes a full assessment of these factors, helping you choose the most cost-effective path forward.
What can I do to prepare my furnace for winter?
The most effective step is to schedule a professional
fall tune-up (an answer to
heating maintenance questions). Also, ensure you replace your filters, clear the area around your furnace of clutter and debris, and check your thermostat batteries. Routine inspections ensure proper airflow and safe, reliable operation before the first truly cold night arrives.
Energy Efficiency & Cost Questions
How can I lower my monthly energy bills?
Simple steps can yield significant savings:
- Replace filters regularly.
- Utilize programmable or smart thermostats to avoid heating/cooling an empty house.
- Seal windows, doors, and exposed ductwork in non-conditioned areas like attics or crawlspaces.
- Schedule annual maintenance to ensure peak efficiency. Upgrading to a high-efficiency ENERGY STAR® system can cut energy costs by up to 30%.
Do you offer financing or payment plans?
Yes, we understand that system replacements and major repairs are often unplanned expenses. We offer flexible financing options for system replacements and major repairs to make high-efficiency upgrades accessible. Speak with our team for current promotions and payment programs available in your area.
What are the benefits of signing up for a maintenance plan?
Our maintenance plans offer outstanding value, including seasonal tune-ups, priority scheduling (meaning you go to the front of the line when it's 100°F outside), and discounts on parts and labor for repairs. These plans are the best defense against unexpected breakdowns and keep your system reliable and compliant with manufacturer warranties.
Service Area & Scheduling Questions
What areas do you serve?
We provide reliable HVAC service throughout the Antelope and Santa Clarita Valleys, ensuring local expertise across the region. This includes: Palmdale, Lancaster, Santa Clarita, Valencia, Canyon Country, Acton, Stevenson Ranch, Green Valley, and Little Rock.
How do I schedule an appointment?
It’s easy! You can call us at (818) 579-3753, email us at preciadoac1@icloud.com, or use our simple online form to schedule service, request a quote, or book a consultation.
Are your technicians licensed and insured?
Yes—every Preciado Air Conditioning technician is fully licensed, bonded, and insured to perform residential and commercial HVAC work throughout California. We uphold the highest standards of safety and professionalism.
Need Help? We’re Here for You
Still have questions about your HVAC system? Don't hesitate to reach out. Our friendly local team is happy to provide the expert guidance you need.
📍 Serving Palmdale, CA, and the Antelope Valley region
🕓 Mon–Fri 7 am–6:30 pm | Sat 8:30 am–4 pm
