Warning, Cad Cell Resistance High (service required)
The cad cell resistance is higher than normal while running, the system is in need of a tune up.
-Check for proper alignment of the cad cell and clean the eye if necessary.
-Check if the pump is generating adequate pressure.
-Check burner adjustments (refer to burner manufacturers instructions).
-Check for excessive soot build up in the burner and flue.
-Check for flue blockage.
