How much is a combined heating and cooling system?
A combined heating and cooling system (like a packaged gas/electric unit similar to Rheem model RRMA-A048) typically costs about $8,000 to $18,000 installed. Total price depends most on unit capacity, efficiency rating, ductwork condition, and electrical or gas line upgrades.
Typical installed cost breakdown
These are common line items that drive the final installed price for a gas/electric package unit:
- Equipment (package unit): $4,000 to $10,000
- Labor (removal, set, connect, start-up): $2,000 to $6,000
- Ductwork repairs or modifications: $0 to $4,000
- Electrical, gas, venting, pad, drain updates: $0 to $3,000
- Permits and disposal: $200 to $1,000
| Home or job factor | Usually pushes cost | Why |
|---|---|---|
| Higher tonnage (larger capacity) | Up | Larger compressor, blower, and heat section |
| Higher efficiency | Up | More advanced components and setup |
| Ductwork needs work | Up | Airflow problems reduce comfort and efficiency |
| Easy swap (same size, same hookups) | Down | Less labor and fewer materials |
What to check before you price a replacement
We use these checkpoints to avoid surprises on install day:
- Confirm the exact model and capacity on the unit data plate
- Verify duct size and supply/return airflow are adequate
- Check electrical disconnect, breaker size, and wire gauge
- Confirm gas line sizing and shutoff location
- Inspect the condensate drain routing and trap
Why it matters
An HVAC “system price” is not just the box. Installation details (ductwork, electrical, gas, and drainage) determine whether the new unit runs efficiently, controls humidity, and avoids nuisance shutdowns.
Parts vs. replacement
If your RRMA-A048 is not cooling or starting reliably, a repair can sometimes restore operation at a much lower cost than replacement. Common service parts for this type of unit include a central air conditioner start capacitor 43-17075-04 or a motor WG840465 when symptoms point to a weak start circuit or a failing fan motor.
Last updated: February 2026
What are the common problems with Rheem heat pumps?
Common problems on Rheem heat pump style systems (including package units like model RRMA-A048) are usually airflow restrictions, electrical start/run failures, and heat/cool control issues. The most frequent symptoms are poor heating or cooling, outdoor fan problems, icing, short cycling, and nuisance shutdowns.
Most common symptoms and what they usually point to
- Outdoor fan not running or noisy: failing condenser fan motor, damaged fan blade, or a weak capacitor.
- Unit hums but will not start: weak start capacitor or a failed start kit.
- Icing on the outdoor coil: low airflow (dirty filter, blocked return/supply) or low refrigerant charge.
- Heat runs briefly then shuts off: overheating from restricted airflow or a tripping limit switch.
- Heat will not stay lit (gas heat section): dirty or failing flame sensor.
- Water around the unit: clogged condensate drain or improper drainage.
Parts that commonly fail on RRMA-A048 style package units
If your symptom matches, these are common replacement candidates found for this model:
| Symptom | Common suspect | What it does |
|---|---|---|
| Outdoor fan not spinning | Motor WG840465 | Drives the condenser fan to move heat out of the system |
| Hard starting, clicking, or buzzing | Central Air Conditioner Start Capacitor (part number 43-17075-04) | Helps the compressor start under load |
| Overheat shutdown | Limit switch 470015 | Opens the circuit if temperatures get unsafe |
| Burners light then drop out | Furnace Burner Flame Sensor (part number 62-23543-02) | Proves flame to keep gas valve energized |
Quick checks we recommend before replacing parts
- Replace or clean the air filter; confirm all supply and return vents are open.
- Inspect the outdoor coil for debris; gently clean the fins (power off first).
- Listen for humming/clicking at startup; that often points to a capacitor/start issue.
- Check for ice; if iced, shut the system off to thaw and address airflow first.
- If you smell gas, see scorch marks, or breakers trip repeatedly: stop and use a qualified technician.
Why it matters
Heat pumps and package units depend on correct airflow and reliable electrical starting. A weak capacitor or failing fan motor can quickly lead to overheating, icing, higher energy use, and compressor stress.
Last updated: February 2026
What is a combined furnace and AC unit called?
A combined furnace and AC unit is most commonly called a packaged unit (also called a packaged HVAC system). For Rheem model RRMA-A048, the category is a gas/electric package unit, meaning heating and cooling components are housed together in one outdoor cabinet.
Common names you will hear
- Packaged unit (most common for an all-in-one outdoor cabinet)
- Gas/electric package unit (gas heat plus electric air conditioning)
- All-in-one HVAC unit (general term)
- AC and furnace combo (informal)
- Dual-fuel (hybrid) system (usually a heat pump paired with a furnace; often not a single cabinet)
- Heat pump (one system that reverses to heat and cool; may be packaged or split)
Quick comparison: packaged vs split vs dual-fuel
| System type | Where the equipment sits | What “combined” usually means | Typical clue |
|---|---|---|---|
| Packaged unit | One outdoor cabinet | Heat + AC in one box | Large rooftop or pad-mounted unit |
| Split system | Indoor + outdoor sections | Furnace inside, AC outside | Indoor furnace/air handler plus outdoor condenser |
| Dual-fuel | Indoor + outdoor sections | Heat pump + furnace for efficiency | Thermostat switches between heat sources |
Why the name matters when ordering parts
The system name helps you match the right components and troubleshooting path. For example, packaged gas/electric units commonly use parts like a condenser fan motor, capacitors, and furnace safety controls.
If you are diagnosing a cooling-side airflow or fan issue on RRMA-A048, a common replacement part is the motor WG840465.
Helpful tip for identifying your setup
- If you see one cabinet outdoors with both refrigerant lines and a gas burner section, it is typically a packaged gas/electric unit.
- If you have an indoor furnace and a separate outdoor AC condenser, it is typically a split system.
- If your outdoor unit runs in winter for heating, you likely have a heat pump.
Last updated: February 2026
What is the average life of a Rheem HVAC system?
A Rheem HVAC system like the RRMA-A048 gas/electric package unit typically lasts 15 years. With consistent upkeep (clean filters, clear airflow, correct refrigerant charge, and safe burner operation), it reaches its full service life and avoids the most common early failures.
Typical life expectancy by major section
Most “HVAC system lifespan” questions come down to which section is doing the work.
| Section in a package unit | Typical life | What usually ends it first |
|---|---|---|
| Gas heat section (burners, controls) | 15 years | Overheating, dirty burners, flame-sensing issues |
| Cooling section (compressor, outdoor fan) | 15 years | Electrical stress, airflow problems, capacitor/motor failures |
| Blower and controls | 15 years | Dust buildup, worn bearings, loose wiring |
What to do each season to hit the full lifespan
- Replace or clean the air filter on schedule (restricted airflow shortens motor and heat exchanger life).
- Keep supply and return vents open and unobstructed.
- Rinse debris from the outdoor coil area and keep vegetation back.
- Watch for short-cycling (rapid on/off); it accelerates wear on motors and capacitors.
- If heat is unreliable, inspect and clean the flame sensor; a dirty sensor can cause nuisance shutdowns.
Parts that commonly affect longevity on RRMA-A048
If you are troubleshooting hard starts, no-cool, or heat shutdowns, these are common wear items we see on package units:
- Motor WG840465 (condenser fan motor)
- Central Air Conditioner Start Capacitor (part number 43-17075-04)
- Furnace Burner Flame Sensor (part number 62-23543-02)
- Limit switch 470015
Why it matters
Once a unit gets near the 15-year mark, small airflow or electrical issues can turn into repeated breakdowns. Staying ahead of filter restriction, overheating, and weak capacitors helps the RRMA-A048 run more efficiently and reduces stress on the compressor and fan motor.
Last updated: February 2026
