Lower electronic board (LPCA) with software.
Note: These boards were used on unit manufactured before September 2004, and have different wire connectors that the currecnt lower borad. You can order 5013487 and upgrade to the curretn version of this lower board.
Lower PCA controller upgrade kit.
Used on models with "SB" at the beginning of the serial number, units manufactured before september of 2004.
NOTE: Precor used several...
