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Frequently Asked Questions
Why does my AC struggle on the hottest days here?
Local systems are engineered for a 91°F design temperature. When actual temperatures exceed this, the system's capacity drops and it runs continuously. Modern units using R-454B refrigerant maintain better efficiency and pressure stability in these high-heat conditions compared to older R-410A systems, providing more reliable cooling during peak loads.
What should I do if my AC stops working on a hot day in Poseyville?
For a no-cool emergency, first check your thermostat settings and the circuit breaker. If the issue persists, a technician can be dispatched from near the Robb Township Community Center, using I-64 for a direct route into the neighborhood. This logistics plan supports a typical 15 to 25 minute response window to begin diagnostics.
Can my home's ductwork support better air filters for ozone and pollen?
High-MERV filters like a MERV-13 are effective for capturing May pollen peaks and mitigating ozone-related particulates. However, your existing galvanized steel ductwork must be assessed for static pressure. Older systems often lack the blower capacity to push air through high-restriction filters without causing airflow problems and reduced performance.
Is switching from my gas furnace to a heat pump a good idea for Robb Township?
A cold-climate heat pump is viable for our winter lows, but the economics depend on your usage during Vectren's peak hours of 2 PM to 7 PM. Heat pumps operate efficiently on electricity, but if you rely heavily on gas heat during extreme cold, a dual-fuel system that pairs a heat pump with your existing gas furnace may offer the optimal balance of comfort and cost.
What are the permit and safety rules for a new AC installation now?
All installations in Robb Township require a permit from the Posey County Building Department. As of 2026, systems using A2L refrigerants like R-454B must comply with updated safety standards, including specific leak detectors and revised clearance requirements. These codes ensure safe handling of mildly flammable refrigerants in residential settings.
How old is the average HVAC system in Poseyville homes?
A system installed when a home was built around 1976 is now 50 years old. In Robb Township, units of this age frequently show condenser coil corrosion due to decades of exposure to humid air and seasonal temperature swings. This corrosion compromises heat transfer and refrigerant containment, leading to reduced efficiency and eventual failure.
My Ecobee thermostat shows an E4 alert. What does that mean?
An Ecobee E4 code indicates the thermostat has lost communication with an external sensor or equipment. In Poseyville, this often points to a wiring issue exacerbated by temperature fluctuations in the attic or a failing control board in the HVAC unit. It is a diagnostic signal prompting a professional check to prevent a complete system shutdown.
What is the SEER2 requirement for a new system, and are there rebates?
Federal law now mandates a minimum 14.3 SEER2 for new air conditioners and heat pumps. Pairing a high-efficiency unit with the active Inflation Reduction Act rebates, which cap at $8k, significantly offsets the upfront cost. At Vectren's current rate of $0.14 per kWh, the operational savings from a higher SEER2 system will compound over time, improving the investment payback.
