Robinair Filter Serial Number Site

Report: Understanding Robinair Filter Serial Numbers 1. Objective To clarify the purpose, location, and interpretation of serial numbers found on Robinair replacement filters (e.g., filter-driers, inlet filters) for A/R machines (e.g., 34700, 34900, 35100 series). 2. Key Finding Robinair replacement filters themselves do not carry unique serial numbers for traceability. Instead, the equipment’s serial number is used to determine the correct filter part number, and the filter may bear a lot code or date code for quality control. 3. Serial Number vs. Lot/Date Code | Feature | Equipment Serial Number | Filter Lot/Date Code | |---------|------------------------|----------------------| | Location | Machine nameplate | Printed on filter body or box | | Format | Alphanumeric (e.g., R1234A56789 ) | Often YYWW or MMDDYY format | | Purpose | Identifies specific machine & build | Tracks filter production batch | | Used for | Ordering correct filter | Warranty / shelf-life verification | 4. Locating the Equipment Serial Number

Robinair machines (34700, 34900, 35100 series): Serial number is on a silver or white label on rear panel or underside of unit. Older units : May have serial number stamped into chassis or on compliance label.

5. Using Serial Number to Identify Filter Robinair filters are model-specific. To find the correct filter:

Locate machine model number and serial number . Visit Robinair’s parts lookup (or consult the manual). Example mapping: robinair filter serial number

| Machine Model | Filter Part Number | Filter Type | |---------------|--------------------|--------------| | 34700 (older) | 12041 | Inline filter-drier | | 34900 | 12052 / 12053 | High-side filter | | 35100 | 12053 | Combination filter |

⚠️ Using the wrong filter can damage the compressor or contaminate refrigerant.

6. Reading Filter Date Codes (if present) Report: Understanding Robinair Filter Serial Numbers 1

Format example: 2415 → 24th week of 2015. Shelf life : Unopened filter-driers should be used within 12–18 months of manufacture (desiccant absorbs moisture through packaging over time). If no date code is visible, assume filter is old and replace it.

7. Troubleshooting: Missing or Illegible Serial Number

Check service manual – some serial numbers are printed on the main control board or compressor mount . Contact Robinair support with machine model and approximate purchase date – they may cross-reference by production batch. Key Finding Robinair replacement filters themselves do not

8. Recommendations

Record your machine’s serial number immediately – store it separately. Do not rely on a filter’s “serial number” – it does not exist for ordering. Replace filters annually or per machine manual – do not use date-code-only as the sole replacement indicator.