The
mounting plate is held in place by two or more screws. Remove
the mounting plate.
The shutoff
switch (labeled "A" below) is located near the shutoff
arm (Labeled "B"). Remove the switch by removing the
two screws that hold it in place. The switch is connected by three
wires. Label the wire placement on the switch before disconnecting
the wires. The wires are connected to the switch with slip-on
connectors. Firmly pull the connectors off of the switch terminals
(do not pull on the wire). You may need to use a pair of needle-nose
pliers to remove the connectors. Inspect the connectors and the
terminals for corrosion. If the connectors are corroded they should
be replaced.