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You will receive a list of possible filters.
: Each serial number is unique. If the machine displays "Invalid serial number," it likely means the number was mistyped or that specific filter has already been registered in that machine. How to Enter the Serial Number During Maintenance robinair filter serial number
Robinair has changed filter designs over the years. For example: You will receive a list of possible filters
For Robinair recovery machines like the 34788NI , the 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 How to Enter the Serial Number During Maintenance
: Machines often display a warning such as "Filter capacity low, recover will lock out after 25 lbs" to alert the technician that a new filter and its accompanying code are needed soon. Error Codes
: 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.
