As an Amazon Associate I earn from qualifying purchases.Updated: April 03, 2026
The Filter Drier in your Carrier Infinity 20UH is crucial for removing moisture and contaminants from the refrigerant system. Over time, the desiccant inside the drier loses its effectiveness. Replacing it every 5 years ensures optimal performance and prevents potential damage to other components. Neglecting replacement can lead to reduced cooling capacity and increased energy consumption.
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Function: Removes moisture and impurities from the refrigerant, protecting the system from corrosion and ensuring smooth operation.
Signs it needs replacing: Reduced cooling efficiency, unusual noises from the unit, or ice buildup on refrigerant lines.
OEM vs aftermarket: OEM parts guarantee compatibility but are often more expensive. Aftermarket options offer cost savings but require careful selection to ensure proper fitment.
Installation: Generally involves disconnecting and reconnecting refrigerant lines. Basic HVAC knowledge is recommended. Professional installation is advisable for those unfamiliar with HVAC systems.
Replacement schedule: every 5 years
Compatibility warning: always verify part number matches your exact model before ordering
Pros & Cons
Pros
✓ Restores device to original performance without buying a new unit
✓ Significantly cheaper than a full device replacement
✓ Multiple options available from OEM and aftermarket sellers
Cons
✗ OEM parts cost more than third-party alternatives
✗ Wrong part number will not fit — model verification is essential
Common Use Cases
Scheduled maintenance on the every 5 years replacement cycle
Performance restoration after noticing reduced output or efficiency
Preventive replacement before a worn part causes secondary damage
Who Should Buy This
This Filter Drier replacement is for Carrier Infinity 20UH (20UH080A) owners experiencing reduced cooling capacity or unusual noises from their unit. Replacing this part extends the lifespan of your system and restores optimal performance.
Not ideal for: If your Carrier Infinity 20UH unit has major mechanical failures beyond the Filter Drier, a full replacement may be more cost-effective.
Good to Know Before Buying
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Always confirm your exact model number (20UH080A) before ordering. Part numbers vary between model variants and production years. Check the label on your device or original documentation to be sure.
Frequently Asked Questions
What is the part number for the Carrier Infinity 20UH Filter Drier?
The part number is R4KJF000S003. Always verify this matches your exact model (20UH080A) before ordering, as similar models may use different parts.
How often should I replace the Filter Drier on my Carrier Infinity 20UH?
every 5 years
Will aftermarket Filter Drier replacements work in my Carrier Infinity 20UH?
Third-party parts are widely available and often cheaper than OEM. Look for listings that specifically mention compatibility with model 20UH080A and check buyer reviews for fit confirmation before purchasing.
Prices change frequently. See the latest deal on Amazon.