We can provide the exact part numbers and step-by-step programming reset codes for your specific unit. Share public link
For older machines, a generic reset sequence is found in the manual.
Find the silver or black metal rivet plate (or heavy-duty sticker).
Check that the old rubber O-ring came off with the old filter and is not stuck to the machine manifold. Step 3: Install the New Filter robinair filter serial number
No, absolutely not. The filter serial number is a unique 10-digit code printed on the label of the new filter-drier itself. The machine's serial number is for the RRR unit and can be found on a white tag on the back of the unit above the tank. The filter change process only asks for the former.
Modern Robinair recovery machines, such as the 34788NI or 34988 , require this code to meet SAE J-2788 standards.
: Be cautious when buying generic or off-brand filters. Many third-party replacements (such as some found on Amazon.ca ) do not include a serial number , which may prevent your machine from resetting and locking you out of recovery functions. We can provide the exact part numbers and
[Robinair RRR Machine] ──(Tracks 150 lbs of use)──> [Filter Capacity Low Warning] │ [Locked Out Mode] <──(Blocks Recovery Functions)── [Reaches 150 lbs Limit] │ └──> [Requires Genuine Filter + 10-Digit Serial Number Input] ──> [System Unlocked]
Only official Robinair 34724 filter-driers contain valid serial numbers.
: If the machine displays a "Serial Number Error," the code may have already been used or is invalid for that specific unit. In rare cases where a valid code is not recognized, Robinair Technical Support (1-800-822-5561) can provide a one-time override code. Genuine Parts : It is highly recommended to use genuine Robinair filters Check that the old rubber O-ring came off
The serial number is essential for several reasons:
Access the filter compartment (usually behind a plastic shroud or a back panel). Use a standard strap wrench or filter wrench to spin the old filter counter-clockwise. Keep a rag handy, as a small amount of oil or residual refrigerant may escape. Step 3: Prep the New Filter
On modern Robinair A/C recovery machines, the filter serves a dual purpose. It removes moisture and contaminants from the refrigerant, and its unique serial number acts as a digital key. The serial number is recorded by the machine's internal computer to track filter usage and cannot be reused, which is why each new filter comes with its own unique code.