Micro Switch Program 9000, 9100, 9500 Fleck 16433 ( V7-7A19D8 - older 5 amps - newer D3V-6-1C25-K-44 is rated 6 amps )
NOTE: This Switch ( 16433 ) is closest to Driver Motor ( right side ), and the one next to it ( 10218 ) will sometimes BREAK, and this be a result of the DRIVE MOTOR ( 18738 ) running backwards.
The Drive Motor should be REPLACED to solve this issue ( motor running backwards - breaking switches ).
Reference = Switches Breaking Fleck 9000, 9100, or 9500 ValvesAlso - NOTE: Starting in 2019, Fleck ( Pentiar Water Treatment ) starting using ( 2 ) 16433 switches,
and no longer used the switch 10218 on their Power Heads ( 9000 / 9100 / 9500 ).