For professionals servicing automotive A/C systems, —such as the popular 34788 and 34700 series—are industry staples. However, these machines are designed with a strict maintenance protocol to ensure refrigerant purity. A critical component of this maintenance is the filter-drier , and specifically, the Robinair filter serial number that must be entered to reset the machine.
Robinair occasionally updates its canister designs. Look closely at the packaging for a notice stating "Replaces part number XXXXX."
Beyond inventory logistics, the serial number is the key to the regulatory kingdom.
For the machine’s main serial number, Robinair typically utilizes a coding system that reveals the unit's "birthday." While formats have shifted over the years, a common structure involves a sequence where the first few digits denote the year and week of manufacture.
: 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
If you want to troubleshoot a specific machine issue, tell me: What is your ? What error code or message is showing on the screen? Are you using R-134a or R-1234yf refrigerant?
The 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
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).
: Spin off the old filter and install the new OEM Robinair filter tightly.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
The machine will prompt you to confirm the change, often by pressing the "Start/Yes" button.
Let me know the model and code.
Mara didn't cry. She unbolted the filter housing, cradled the warm, silent canister, and read the final truth Deke had hidden in that serial number.
The secret wasn't the pump. It was the filter.
: He noted the machine's serial number (ranging from 000000 to 65535 ) from the rear plate [1, 2].
Apply a thin layer of fresh compressor oil to the new filter gasket.
These numbers are primarily used to ensure you are using a certified filter that protects the machine's vacuum pump and internal components from moisture, acid, and debris 1.1.1 .