RUUD SERIAL NUMBER LOOKUP
Ruud serial number lookup
Find the manufacture date and estimated age of your Ruud air conditioner, heat pump, or furnace.
About this lookup
Many Ruud systems share Rheem's month-and-year structure at the start of the serial number.
What it supports
Full serials with at least 10 characters and a valid month/year prefix.
If your serial does not match
Plant-specific, water-heating and legacy formats may encode the date differently.
Where to find the serial number
Check the side or rear of the outdoor unit, inside the furnace door, or on the air-handler cabinet. Copy the complete serial number, not the model number.