The dual set of micro-switched ( one PN 10218 and one PN 16433 ) used on the Fleck 9000, 9100, and 9500 power head ( drive assembly ) can break when the Drive Motor ( old # 14927 or 18738, 120 volt 50/60 Hz ) turns in reverse. This can happen when first activated, or when there are power surges. Replacing the motor is REQUIRED to prevent this from happening in the future. The newer motors ( PN 61633-01 ) are suppose to prevent this, plus they are a little stronger ( although I never had a "strength" problem with the old motors ). So, if you find both your switched physically broken, then plan on replacing the drive motor at the same time as you replace the switches.
NOTE: The Drive Assembly ( Power Head ) for the 9000, 9100 and 9500 are now the same. Previously the 9500 had a different motor, and triple cam ( 17331 ), but now the assembly uses the same parts for all 3 models. Only the meter label for gallons used is different ( as various meter cover, with various ranges are used ).
