Rooftop Package Unit

We recently received a service call from a homeowner in Altadena, CA who reported that their rooftop HVAC system was no longer cooling effectively and had begun making unusual grinding noises.

They also mentioned rising energy bills and frequent short-cycling, which made it difficult to keep their home comfortable—especially during warm afternoons.

Concerned that the issue might worsen, they contacted Lions Heating & Air for a professional inspection and honest recommendation.

Inspection, Diagnosis, and Our Recommendation

Upon arriving at the property, our team performed a complete system inspection, starting with electrical components, refrigerant levels, and the rooftop unit’s overall condition.

It became clear that the existing system had a failed compressor and significant coil corrosion due to years of wear and inadequate maintenance.

While repairs were technically possible, the cost would have been nearly as much as installing a new, energy-efficient system—and there was no guarantee of long-term reliability.

We explained our findings to the homeowner and recommended replacing the outdated system with a Daikin DP5HM Packaged Heat Pump Unit. This model offers superior energy efficiency, quieter operation, and powerful all-in-one heating and cooling performance. The homeowner appreciated the straightforward assessment and chose to proceed with the heat pump replacement.

Post-Installation Results and Improved Comfort

Once our technicians completed the installation of the new Daikin DP5HM rooftop unit, the difference was immediate. The system delivered strong, consistent airflow throughout the home and eliminated the hot and cold spots that had been frustrating the homeowner. The new unit’s advanced efficiency features also reduced noise levels and noticeably improved indoor air quality.

The Altadena homeowner reported a dramatic drop in their energy usage and expressed how much they appreciated the even comfort across all rooms. With the new Daikin system in place, their home now stays perfectly comfortable year-round—without the high operating costs or noise of their old unit.