Rheem Ductless Mini-SplitHow to Decode
Rheem is a trusted manufacturer of heating, cooling, and water heating products for residential and commercial use.
Decode Your Unit NowRheem Ductless Mini-Split — Type
Brand
Rheem
Equipment Type
Ductless Mini-Split
SEER Range
15-33
Expected Lifespan
12-20 years
Serial Format
Week-Year (WWYY)
Warranty
10-year limited parts
Current Refrigerant
R-410A / R-32
Headquarters
Atlanta, GA
Rheem Serial Number Decoding Table
Example
F1023456789
| Positions | Field | Value | Meaning |
|---|---|---|---|
| 1 | Plant identifier | F | Fort Smith, AR plant |
| 2-3 | Week of manufacture | 10 | Week 10 (March) |
| 4-5 | Year of manufacture | 23 | 2023 |
| 6-11 | Sequential number | 456789 | Production sequence |
Rheem Model Number Decoding Table
Example
RA1636AJ1NA
| Positions | Field | Value | Meaning |
|---|---|---|---|
| 1-2 | Product type | RA | Air conditioner (residential) |
| 3-4 | SEER rating | 16 | 16 SEER |
| 5-6 | Capacity (000s BTU) | 36 | 36,000 BTU (3 tons) |
| 7-9 | Configuration | AJ1 | R-410A, single stage |
| 10-11 | Voltage | NA | 208/230V, single phase |
Rheem Ductless Mini-Split -- Overview
Rheem manufactures a comprehensive lineup of ductless mini-split models ranging from entry-level to premium high-efficiency units. With SEER ratings spanning 15-33, Rheem offers options for every budget. These units are backed by 10-year limited parts.
The typical lifespan is approximately 12-20 years with regular maintenance. Our decoder tool can instantly tell you the exact age and condition of your unit.
How to Decode Your Rheem Ductless Mini-Split Serial Number
Every Rheem HVAC unit has a unique serial number that encodes critical information about the unit. Rheem uses a Week-Year (WWYY) format, where specific characters represent the manufacturing date, production facility, and unit sequence number.
For example, the serial number "F1023456789" can be decoded as follows: the first characters indicate the manufacturing date, while subsequent digits identify the production line and unit number. Our free decoder tool automatically parses this format and reveals the complete manufacturing history.
Maintenance Schedule for Rheem Ductless Mini-Split
Replace or clean air filters: Every 1-3 months. Clean condenser coils: Annually (spring). Check refrigerant levels: Annually. Inspect electrical connections: Annually. Clean evaporator drain line: Every 6 months. Test thermostat calibration: Annually. Inspect ductwork for leaks: Every 2-3 years.
Rheem Ductless Mini-Split Efficiency Over Time
Rheem has continuously improved efficiency to meet evolving federal standards. In 2006, the minimum was raised to SEER 13. In 2015, southern states moved to SEER 14. In 2023, new SEER2 standards took effect: 14.3 SEER2 (South), 13.4 SEER2 (North). Modern Rheem models range from 14 to 26+ SEER.
Regarding refrigerants: Rheem units before 2010 likely use R-22 (phased out since 2020 -- expensive and harmful). Units from 2010-2023 use R-410A. Newest models use R-32 or R-454B to meet EPA regulations. Knowing your refrigerant is critical -- R-22 refills cost $100-200+ per pound.
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Decode Your Unit NowFAQ
How do I find the age of my Rheem HVAC unit?
Enter your Rheem serial number into our free decoder. Rheem uses a Week-Year (WWYY) format. We parse it instantly and calculate the exact age, plus a condition status.
Is Rheem a good HVAC brand?
Rheem is one of the most established manufacturers, founded in 1925 with over 101 years of experience. They offer 10-year limited parts and consistently rank among top brands.
What does a Rheem serial number look like?
Rheem serial numbers follow a Week-Year (WWYY) format. Example: "F1023456789". Find it on the metal data plate on the unit.
How long is the Rheem warranty?
Rheem typically offers 10-year limited parts on residential equipment when properly registered.