Frequently Asked Questions

The checklist includes refrigerant charge verification, condenser coil cleaning, electrical connection testing, capacitor inspection, thermostat calibration, drain line clearing, and airflow measurement. Each component affects cooling performance and efficiency differently. These checks catch most failures before they cause breakdowns during Boise's summer heat.

Common causes include thermostat setting errors, flame sensor failures, ignition problems, or limit switch malfunctions. Gas furnaces need consistent flame detection to heat air properly. If the blower runs but air stays cold, the burner assembly isn't igniting or the heat exchanger isn't transferring heat.

The reversing valve switches refrigerant flow direction to extract heat from outdoor air and transfer it indoors. Even when outdoor temps drop below freezing, enough thermal energy exists for heat pumps to operate. Efficiency decreases as temperatures fall, which is why dual-fuel systems pair heat pumps with backup furnaces.

If your system is over 12 years old and needs compressor work or refrigerant leak repairs exceeding $1,500, replacement often makes more financial sense. Repeated failures, rising utility bills, and R-22 refrigerant phase-out costs also favor replacement over continued repairs.

Warm air from vents, short cycling every few minutes, frozen evaporator coils, weak airflow, and unusual grinding or hissing noises all indicate system problems. Refrigerant leaks cause icing and reduced cooling capacity. Electrical failures show up as frequent tripping or failure to start.

Higher SEER2 ratings mean lower energy consumption during Boise's hot summers. A 16 SEER2 system uses about 30% less electricity than a 13 SEER2 unit cooling the same space. The efficiency gap matters most during July and August when AC runs constantly.

Technicians inspect the heat exchanger for cracks, corrosion, or separation that allows combustion gases to mix with circulating air. Visual inspection, flame observation, and pressure testing identify compromised exchangers. Cracked heat exchangers require immediate furnace replacement for safety reasons.

Room additions, garages, bonus rooms, and historic homes without existing ductwork benefit most from ductless systems. Installation requires only a three-inch wall penetration instead of full duct runs. Zoning flexibility allows heating or cooling individual spaces without affecting the rest of the home.

Whole-home air purifiers capture airborne particles, UV lights neutralize biological contaminants in ductwork, and properly balanced humidity prevents mold growth. Filtration handles dust and allergens, while ventilation systems exchange stale indoor air with fresh outdoor air. Each solution addresses different indoor air quality concerns.

Sediment buildup at the tank bottom creates popping or rumbling sounds when heated water bubbles through the layer. Mineral deposits accumulate faster in hard water areas. Flushing removes sediment, but heavily layered tanks often need replacement because sediment hardens and insulates the heating element.

Heat pumps extract outdoor heat efficiently until temperatures drop into the teens, when capacity decreases and backup heat activates more frequently. Boise's winters occasionally dip below optimal heat pump range. Dual-fuel systems switch to gas furnace heating during extreme cold, maintaining comfort while controlling operating costs.

Schedule AC maintenance in spring before cooling season and furnace service in fall before heating season. Pre-season tune-ups catch refrigerant leaks, ignition problems, and airflow issues when repair costs are lower. Biannual service prevents emergency breakdowns during temperature extremes.