Service Bulletin Description:
Due to the reactor design change, when you order any part listed below, it is very important that you check the unit’s version number. Even though some of the new design parts will fit the old version, the specifications on these parts have been changed.
This Service Bulletin PDF download contains information for the following:
WF431ABP/XAA WF431ABB/XAA
The PDF may also contain information that applies to additional models not listed.