Filter Serial Number - Robinair

Lower-grade aftermarket filters often contain cheap desiccant beads that break down under pressure. These loose beads can travel directly into your machine's solenoids, destroying the internal seals.

Robinair filter-driers remove moisture, acid, and debris from recovered refrigerants. This protection prevents contamination of the machine's internal compressor. Tracking the filter serial number is critical for three specific reasons.

The first challenge for many technicians, especially those new to a specific unit, is simply finding the number. The serial number is rarely on the filter itself in the way a barcode sits on a grocery item. Instead, it is typically found in one of two places depending on the vintage and model of the Robinair unit (such as the popular 34788 or 34134 series). robinair filter serial number

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Check the label on your new filter to ensure the part number matches. Clean the mounting bracket threads. Apply a thin film of clean compressor oil to the rubber O-ring gasket of the new filter to ensure a perfect seal. Step 4: Install the Filter The serial number is rarely on the filter

To speed up your search, here is a quick-reference guide for the most common Robinair filter numbers and the machines they support: Filter Part Number Compatible Robinair Machine Models Refrigerant Type 34288, 34788, 34788-H, 34988 17202 17800B, 17801B, 34200, 34700 Series R-12 / R-134a 34430 Older 34134Z, 34700Z Series 12347 AC1234-4, AC1234-6, AC1234-9 11566 Commercial/Residential Recovery Pumps (RG3, RG6) R-22, R-410A, etc. Step-by-Step: Replacing Your Filter and Resetting the Code

SERIAL NUMBER USED OR INVALID : This is the most common error. It almost always means one of two things: 34988 17202 17800B

For Robinair recovery machines like the , the filter serial number is 10-digit code located on a sticker on the side of the new filter-drier (typically part number 34724

Robinair filters are model-specific. To find the correct filter:

Turn the machine back on. To clear the "Replace Filter" warning, your machine will prompt you to enter a code.