Robinair Filter Serial Number May 2026
Once you have the serial number, you can unlock a wealth of information. This is especially important for quality control and safety recalls.
Beyond inventory logistics, the serial number is the key to the regulatory kingdom.
1. Warranty Validation Robinair offers a standard warranty (typically one year) on parts and labor. The warranty clock starts ticking based on the manufacture date encoded in the serial number, or the date of purchase if a receipt is provided. If a machine fails and the serial number plate is missing or unreadable, the manufacturer may default to the earliest possible manufacturing date, potentially shortening the customer’s warranty window.
2. The "Filter Change" Algorithm Modern Robinair machines, particularly the AC Pro series, track filter saturation internally. They calculate when a filter needs changing based on how much oil and refrigerant has passed through the system. However, when replacing the filter, the machine often prompts the user to reset the filter timer. This does not require inputting a serial number, but it relies on the premise that the new filter is fresh. If a technician installs an old filter found on a shelf—identified by an old date code/serial on the canister—the machine’s algorithm will be out of sync with reality, leading to potential contamination of the refrigerant tank.
3. EPA Compliance Under Section 608 of the Clean Air Act, technicians must maintain records. While the regulation focuses on the amount of refrigerant recovered, the equipment used is part of the record. When an EPA auditor checks a shop's compliance, they match the service logs to the specific machine serial numbers. A shop claiming to use a new high-end Robinair unit while actually using an older, non-compliant unit is a red flag that triggers deeper investigations.
If you ignore the serial number and just buy the cheapest filter online, you risk buying a 12716 for an older machine – the threads will be different, and the internal bore size may restrict flow, damaging your recovery compressor.
A: International units (sold in Europe, Asia) often have a prefix like R-EU-xxxx. The filter part number may be the same, but the serial number helps Robinair route you to the correct regional support center.
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The Robinair filter serial number is a unique 10-digit code located on a sticker attached directly to the replacement filter-drier. This serial number serves as an activation code that must be entered into the recovery machine’s control panel to reset its internal counter and allow continued operation. Location and Purpose robinair filter serial number
Where to find it: Look for a unique 10-digit number on a sticker on the side of the new Robinair 34724 Filter-Drier Go to product viewer dialog for this item. Function: Modern Robinair machines (like the Go to product viewer dialog for this item.
) track how much refrigerant passes through the filter. The machine will eventually lock out recovery functions once the filter capacity is reached unless a valid, unused serial number is entered to reset this tracking.
Unique usage: Each code can only be used once per machine. If you encounter a "Serial Number Error," the code may be invalid or has already been used on that unit. Entering the Serial Number
To input the code during a filter change, follow these general steps found in Robinair operating manuals:
Access Maintenance: From the machine's setup menu, select Filter Maintenance or Change Filter.
Prompt for Code: When prompted by the display (e.g., "ENTER 10 DIGIT SERIAL NUMBER"), use the keypad to type in the code found on the new filter. Confirm: Press the START/YES button to validate the code.
Physical Replacement: After validation, the machine will guide you to power off and physically replace the spin-on filter. Compatibility The standard filter requiring this serial number is the Robinair 34724 , which is compatible with numerous models, including: NI Series: Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Classic Models: 34288, 34788, 34988,
Are you currently seeing a "Filter Capacity Low" warning or an "Invalid Serial Number" error on your machine's display?
For Robinair recovery machines like the 34788NI, the filter serial number is a unique 10-digit code used to reset the machine's internal counter after a filter change. This code acts as an activation key to ensure only compatible, new filters are used and to prevent the machine from locking out once it reaches its 150 lb (68 kg) refrigerant limit. Locating the Filter Serial Number
Sticker Placement: The serial number is typically printed on a white sticker attached directly to the filter-drier canister (e.g., Part #34724).
Packaging: For some newer units, the code might also be found on a card inside the filter packaging or on the box itself. Once you have the serial number, you can
Machine Display: If you see a "Filter Serial Number Has Already Been Used" error, it means the code has previously been entered on that specific machine. How to Use the Code During Maintenance
Access Setup: Enter the maintenance or setup menu on your machine. Many units will automatically prompt you for the code once the filter capacity is exhausted.
Input Digitally: Use the machine's keypad to input the 10-digit code when the screen displays the prompt.
Confirm and Reset: Selecting "OK" after entry will reset the counter to 150 lbs, allowing the machine to continue recovery operations. Troubleshooting
Invalid Code: If the machine does not recognize the code, check for typos. If it still fails, contact Robinair technical support for a potential override code.
Lockout Warning: The machine will typically warn you when capacity is low (e.g., "Filter capacity low, recover will lock out after 25 lbs") before a total shutdown.
Replacement filters with unique codes can be found at retailers like Amazon, O'Reilly Auto Parts, or Tess Tools. AI responses may include mistakes. Learn more
The Robinair filter serial number is a critical 10-digit alphanumeric code used as an activation key to reset the maintenance counter on modern refrigerant recovery machines. Without entering this specific serial number, many high-end Robinair units will eventually "lock out," preventing further refrigerant recovery once the filter reaches its capacity limit. Where to Find the Serial Number
The serial number is typically located directly on the new filter-drier unit itself.
Sticker Placement: Look for a printed sticker on the cylindrical body of the filter, often near the model number (e.g., Part #34724).
Format: It is a 10-digit code required by the machine's software to verify that a genuine, new OEM filter has been installed. Purpose of the Serial Number A: International units (sold in Europe, Asia) often
The serial number serves several technical and regulatory functions:
Machine Reset: Modern units like the Robinair 34788NI track the volume of refrigerant processed. After filtering approximately 150 lbs (68 kg) of refrigerant, the machine requires a filter change to maintain SAE J-2788 compliance.
Lockout Prevention: If the filter is not replaced and the code is not entered, the machine will display a warning—such as "filter capacity low, recover will lock out after 25 lbs"—and eventually stop functioning to protect its internal compressor from contaminants.
Authenticity Verification: The code ensures that technicians use genuine Robinair Spin-On Filters that meet specific moisture and acid removal standards. How to Enter the Code During Maintenance Model 34788 - Robinair
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
). This code acts as an activation key required to reset the machine's internal counter after 150 lbs of refrigerant have been moved. Finding the Filter Serial Number Physical Label : Look for a white sticker on the body of the new filter. : It is a unique 10-digit numeric code. Compatibility
: This activation code is standard for genuine Robinair spin-on filters used in models like the 34288, 34788, , and 34988 Amazon.com How to Enter the Serial Number
When the machine displays "Filter Capacity Low" or "Replace Filter Now," follow these steps to input the code: Access Maintenance : Use the keypad to select the Filter Maintenance or "Change Filter" option in the setup menu. Input Code : When prompted with "ENTER 10 DIGIT SERIAL NUMBER," type the number found on the new filter's sticker.
to validate. The machine will then guide you to physically replace the filter. Troubleshooting
: If you receive a "SERIAL NUMBER ERROR," the code may be invalid or already used in that unit. In rare cases, you may need an override code from Robinair Tech Support at 1-800-822-5561. Maintenance Requirements Filter Life
: Replace the filter annually or every 150 lbs of refrigerant to prevent machine lockout. Lockout Warning : The machine will typically warn you when 25 lbs of capacity remain before locking out recovery functions. Installation Tip
: Always lubricate the new O-rings before threading the filter clockwise into place. Are you currently seeing a "Serial Number Error" or is your machine already locked out
A: Even if your machine is rarely used, change the filter every 12 months. The desiccant inside has a shelf life. Look at the filter’s manufacture date from its serial number. If the filter was made 18 months ago, it is already degraded – do not install it.