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.
The filter is a cylindrical metal canister, approximately 4–6 inches long and 2–3 inches in diameter. It is located in the refrigerant flow path, often near the recovery compressor. Follow the large diameter hoses from the service ports. robinair filter serial number
If you are trying to buy a replacement, ignore the filter markings (if they are gone) and look at the machine: A: Even if your machine is rarely used,
A: Never. A missing serial number usually means the filter is counterfeit, a factory second, or a returned item. Genuine Robinair filters always have a legible serial number. Use the Serial Number for Age: The serial