Frequently Asked Questions
Quick Answers from Your Local Bilingual HVAC Professionals
Read through our compiled list of common heating and cooling questions to learn more about keeping your residential systems running smoothly.
How often should I replace my home’s air filters?
We recommend replacing standard 1-inch pleated filters every 30 to 90 days, depending on whether you have pets or allergy sufferers in your home.
What are the primary signs that my AC system needs immediate repair?
Watch out for constant short-cycling, unusual grinding or squealing noises, sudden ice formations on the refrigerant lines, or unexplained spikes in your utility bills.
What exactly is a ductless mini-split system, and how does it operate?
A mini-split is a highly efficient heating and cooling system that links an outdoor condenser directly to individual wall units, bypassing traditional duct networks entirely.
Why should I choose a bilingual HVAC company like MB Heating and Air Corp?
Choosing a bilingual team ensures that every detail concerning your repairs, pricing, and warranties is explained clearly in your preferred language—English or Spanish.
How long does a typical residential heating and cooling system installation take?
Most straightforward equipment change-outs are completed within a single working day, while complex multi-zone ductless installations can take one to two days.
What steps are included in a standard preventative maintenance tune-up?
Our comprehensive checks include cleaning the coils, inspecting electrical connections, verifying refrigerant pressures, clearing condensate lines, and testing safety switches.
Is it better to repair an aging air conditioning unit or replace it completely?
If your system is over 10 to 12 years old and requires frequent repairs that cost more than half its value, an energy-efficient replacement is usually the smarter long-term investment.
Can a brand-new heating and cooling system help lower my monthly electric bill?
Yes, modern high-efficiency systems consume significantly less electricity to achieve your desired indoor temperature, leading to noticeably lower monthly utility bills.
What causes a residential indoor cooling coil to freeze over with ice?
Freezing is usually caused by restricted airflow from a dirty filter or blocked vents, or a low refrigerant charge stemming from an undetected leak.
How do I schedule an appointment with MB Heating and Air Corp?
You can call our team directly at (423) 310-7604 or fill out our simple online booking form to secure your service appointment.
Do you offer free estimates?
Yes, we do.
Quick start guide
Should you repair or replace
your HVAC unit?
Age of The Unit
REPLACE
If your HVAC system is over 10-15 years old: If your unit is nearing the end of its lifespan, repairs may not be worth the expense, especially if the cost approaches or exceeds the price of a new unit.
REPAIR
If your HVAC system is relatively new or has a good maintenance history: If the issues you’re encountering are small or infrequent, repairing might not only restore functionality but also keep operational costs low compared to investing in a new unit.
Frequency of Repairs
REPLACE
If this is your 3rd or more major repair: If your HVAC unit is continuously breaking down and repairs are becoming a common occurrence, consider replacing the unit to ensure optimal performance and reliability.
REPAIR
If the equipment requires minor adjustments: If your HVAC system needs small repairs like capacitor, thermostat, contactor, or control board replacements, these should be addressed promptly to maintain efficiency and avoid unnecessary wear on the unit.
Cost of Repairs
REPLACE
If repairs cost about the same as a new unit: When the repairs for your HVAC unit are extensive and the repair costs are nearly equivalent to purchasing a new unit, it’s wise to opt for a replacement.
REPAIR
If the price to fix the unit is affordable: When the expenses associated with repairing the HVAC unit are reasonable and the unit is generally in good condition, it might be more cost-effective to proceed with the repairs rather than investing in a new system.
Performance Issues
REPLACE
If your HVAC system hasn’t been working as well as it used to: If you see issues like uneven temperatures or frequent breakdowns, it might mean extensive repairs are needed, making replacement preferable.
REPAIR
If prior to the problem your HVAC system was working perfectly: If the performance of your HVAC system was consistent and reliable before the current issue arose, and if repairs appear manageable in cost, it could be more beneficial to have it repaired rather than replaced.