Older Homes, Newer Heat Pumps, Same Problems
Opelousas has a housing stock that spans generations. Some homes near the historic district still run original central air systems from the 1980s. Others, especially in the newer neighborhoods along Harry Guilbeau Road and the developments toward Carencro, have heat pumps installed in the last decade. Both types fail. They just fail differently.
Older heat pumps tend toward compressor wear, corroded coils, and electrical component fatigue. Newer units are more likely to have control board glitches, sensor failures, or refrigerant leaks from manufacturing defects. Either way, the result is the same: a system that isn’t heating, isn’t cooling, or isn’t doing either one well.
F & R Air Conditioning has been repairing HVAC equipment across St. Landry Parish and the broader Acadiana region since 1956. We know these systems, old and new.
The Most Common Calls We Get from Opelousas
System Blowing the Wrong Temperature
This is the classic reversing valve symptom. Your thermostat says cool, but the air feels warm. Or you switch to heat during a January cold snap and get nothing but lukewarm air. The reversing valve controls which direction refrigerant flows through the system, and when it sticks or fails electrically, your heat pump gets locked into the wrong mode.
We can usually repair or replace the valve without touching the rest of the system. It’s one of the more straightforward heat pump fixes, and it restores full two-way operation.
Ice on the Outdoor Unit
Some frost on the outdoor coil during winter operation is normal. Your heat pump melts it off through regular defrost cycles. But if you see thick ice coating the entire unit, or if the coil stays frosted for hours, the defrost system has a problem. It could be the defrost control board, the sensor that triggers the cycle, or the timer relay.
In Opelousas, where winter humidity frequently sits above 75 percent, outdoor coils frost up faster than they would in a drier climate. That puts more demand on the defrost system and makes failures more noticeable. A unit that defrosts fine in West Texas might struggle here simply because the moisture load is heavier.
Electric Bill Spike with No Explanation
Your heat pump’s backup heat strips are designed to supplement the system during extreme cold. They run on straight electric resistance, which costs roughly three times more per unit of heat than the heat pump itself. If those strips are running constantly because the heat pump can’t keep up (due to low refrigerant, a stuck reversing valve, or a defrost failure), your electric bill will tell you before anything else does.
We see this often in Opelousas homes during the first cold stretch of the season. The homeowner doesn’t realize the backup heat has been carrying the full load until the bill arrives.
Diagnosing the Right Problem
Heat pump troubleshooting requires separating cooling-mode failures from heating-mode failures, even though both sides share the same compressor and refrigerant circuit.
When cooling doesn’t work, the diagnostic path looks a lot like standard AC repair, checking refrigerant charge, compressor operation, airflow, and electrical connections. When heating doesn’t work, the reversing valve, defrost system, and outdoor coil condition move to the front of the checklist.
Some failures hit both modes. A dead compressor, a failed run capacitor, or a seized outdoor fan motor will shut down cooling and heating at the same time. Our technicians start with a complete system evaluation so we’re addressing root causes, not guessing.
When Repair Stops Making Sense
We don’t push replacements when a repair gets you back up and running reliably. A $175 capacitor swap on a 6-year-old unit is an obvious fix. But a compressor failure on a system that’s already had multiple refrigerant leaks and is pushing 15 years? That’s a conversation about whether a new heat pump installation makes better financial sense.
We present both options with real numbers, not sales pressure, and let you decide.
For heat pump repair in Opelousas or anywhere in St. Landry Parish, call F & R Air Conditioning at (337) 893-5646.