FAQs
K & K Mechanical
How often should I service my HVAC system?
Professional maintenance should be scheduled twice annually: in the spring for air conditioning systems and in the fall for heating systems, as recommended by most equipment manufacturers.How long does an HVAC system last?
With regular maintenance, most HVAC systems operate effectively for 10-15 years. Furnaces can function for up to 20 years, while air conditioning units generally last between 10-15 years.What temperature should I set my thermostat to?
For optimal energy efficiency, we recommend setting your thermostat to approximately 68°F during winter months and 78°F during summer months when occupants are present.Why is my energy bill so high?
Elevated energy costs often result from clogged filters, outdated equipment, insufficient insulation, leaking ductwork, malfunctioning thermostats, or HVAC systems requiring professional maintenance.Why is my air conditioner running but not cooling?
This issue may stem from a clogged air filter, insufficient refrigerant levels, frozen evaporator coil, thermostat malfunctions, or electrical component failures.How often should I replace my air filter?
Filter replacement is typically required every 1-3 months, though the specific interval depends on filter type, presence of pets, household allergies, and overall home conditions.Why is my AC freezing up?
Evaporator coil freezing occurs when airflow is restricted by dirty filters, blocked vents, or when refrigerant levels are inadequate.Should I repair or replace my air conditioner?
Replacement often proves more economical than continued repairs when your system exceeds 10 years of age and requires repeated service calls.Why won't my furnace turn on?
Furnace startup failures typically occur due to thermostat malfunctions, tripped circuit breakers, clogged filters, pilot light failures, or activated safety switches.Is it normal for my furnace to smell when first turned on?
A mild burning dust odor when starting your furnace at the beginning of heating season is expected. Any persistent or strong odors require immediate professional inspection.How often should my furnace be serviced?
Annual furnace maintenance is recommended to ensure efficiency, safety, and reliability.How can I improve indoor air quality
Regular filter changes, duct cleaning, air purifiers, humidity control, and HVAC maintenance can improve indoor air quality.Do UV air purifiers really work?
UV systems can help reduce airborne bacteria, mold spores, and other contaminants when properly installed.How do I know if my ducts need cleaning?
Signs include excessive dust, musty odors, poor airflow, visible debris, or recent remodeling work.Can leaky ducts increase energy costs?
Yes. Air leaks can significantly reduce efficiency and cause your HVAC system to work harder.What qualifies as an HVAC emergency?
No heat in winter, no cooling during extreme temperatures, gas odors, carbon monoxide concerns, electrical issues, or complete system failure.Do you offer emergency HVAC service?
Yes, we provide emergency HVAC repairs to restore comfort and safety as quickly as possible.








