This air conditioning repair project focused on a rooftop Rheem package unit. A package unit is an HVAC system where the main cooling parts are built into one outdoor cabinet. Instead of having one unit outside and another unit inside the home, this type of Central Air Conditioning system sits on the roof and connects to the building through ductwork.
The pictures show a clean rooftop setup with a Rheem Air Conditioner mounted on a raised curb. The curb is the platform that supports the AC unit and helps connect it to the air ducts below. For homes and businesses in the Las Vegas area, rooftop units are common because they save ground space and keep the Heating and Cooling equipment out of the way.
Fast Affordable Air handles Las Vegas AC repair, Air Conditioning service, and system checkups for residential and commercial Cooling systems. On this project, the goal was to inspect the rooftop unit, check refrigerant pressure, look over the electrical components, and inspect the coil surface for airflow concerns.
Step 1: Rooftop Unit Inspection
The first step was to safely inspect the rooftop package unit from all sides. The photos show the Rheem unit sitting level on the roof curb. A level unit matters because the system needs proper drainage, steady airflow, and safe operation. If an AC unit is leaning too much, water may not drain correctly and the cabinet may vibrate more than it should.
The technician also checked the area around the unit. Good rooftop access is important because the condenser fan, electrical panel, refrigerant lines, and duct connection all need room for service. The white roof coating also helps reflect sunlight, which can reduce heat around the Central Cooling system.
Step 2: Checking the Duct Curb and Air Path
Several pictures show the duct curb behind and beside the package unit. This is where air travels between the Air Conditioner and the building. In simple terms, the AC cools the air, then the ducts carry that air into the rooms.
The technician looked for visible cracks, gaps, loose panels, or signs of air leakage. An air leak means cooled air can escape before it reaches the room. That makes the HVAC system work harder and can make some rooms feel warmer than others.
Step 3: Refrigerant Pressure Testing
One picture shows manifold gauges connected to the system. Manifold gauges are tools HVAC technicians use to read refrigerant pressure. Refrigerant is the special fluid inside the AC system that moves heat out of the building. A simple way to think about refrigerant is this: it picks up heat indoors and carries it outside.
The blue gauge reads the low-pressure side and the red gauge reads the high-pressure side. These readings help the technician understand if the Air Conditioning system may be low on refrigerant, overcharged, restricted, or having another performance issue. Pressure testing is not just about adding refrigerant. It is about finding out what the Central AC is actually doing while it runs.
This step is important because guessing can lead to the wrong repair. A system with poor Cooling may have a refrigerant issue, but it may also have dirty coils, weak airflow, a bad capacitor, a failing fan motor, or a duct problem.
Step 4: Electrical and Control Area Inspection
The open service panel shows wiring and the control section of the rooftop unit. This area is the “brain and power center” of the equipment. It includes wires, safety switches, relays, and controls that tell the AC when to turn on and off.
During an Air Conditioning Repair visit, the technician checks for loose wires, burned terminals, worn contact points, and signs of overheating. A contactor is one part that often gets checked. A contactor is like a heavy-duty light switch for the Air Conditioner. When the thermostat asks for Cooling, the contactor helps send power to the compressor and fan.
Step 5: Coil Surface Inspection
The close-up photos show the coil fins. Coil fins are the thin metal lines on the coil surface. They help move heat in or out of the air. If the fins are dirty, bent, or blocked, air cannot move through the coil as easily.
Think of the coil like a screen door. If the screen is clean, air passes through. If the screen is packed with dust or debris, air slows down. When airflow slows down, the Central Air Conditioner may run longer, cool less, and use more electricity.
A careful coil inspection helps determine if the unit needs cleaning, airflow correction, or deeper service. Keeping the coil clean can help the HVAC system breathe better and may help reduce energy waste.
Benefits of Servicing a Rheem Rooftop Package Unit
- Better indoor comfort: When refrigerant pressure, airflow, and electrical parts are checked, the AC has a better chance of cooling rooms evenly.
- Improved energy use: A clean coil and proper airflow can help the unit run with less strain.
- Longer equipment life: Finding small problems early can help prevent bigger Heating and Cooling repairs later.
- Safer operation: Electrical checks help reduce the risk of loose connections, overheating, or sudden shutdowns.
- More accurate repairs: Pressure readings and visual inspections help the technician repair the real issue instead of guessing.
Fast Affordable Air also offers AC check-up services and information about their repair warranty. For this rooftop project, the inspection process focused on the important basics: the unit condition, duct connection, refrigerant pressure, electrical section, and coil surface.
