STATIM units have been manufactured using three different pumps. Before servicing, you must first determine which model of pump the unit contains (See Figure 1). Important Note: Always make sure that there is sufficient steam-process distilled water in the reservoir prior to testing STATIM pumps.
Identifying Pump Types
Fluid-O-Tech Pump
The Fluid-O-Tech pump is generally factory fitted to older units with revision 3.x/4/x controller boards up to approximately 1994-1995. It is a small rectangular pump with a diode plug attached to the top. The pump rests on a vibration-damping pad on the bottom of the chassis and is held in place with a wire bracket. The pump is secured to the bracket by a cable tie at each end. The black lead is attached to controller board J1-5 (LINE) and the white lead is attached to controller board J1-6 (NEUTRAL).
SciCan Pump
The SciCan pump is generally factory fitted to units with revision 2.x/5.x/6.x and some early 7.x controller boards from 1995 up to mid 2008. It has a similar footprint to the Fluid-O-Tech pump, however the diode is now integrated into the pump. The pump is mounted on two vibration damping rubber brackets. Each bracket is secured to the chassis with two screws. The black lead is attached to controller board J1-5 (LINE) and the white lead is attached to controller board J1-6 (NEUTRAL).
Ulka Pump
The Ulka pump is factory fitted to units with revision 7.x controller boards only from mid 2008 onwards. It is slightly smaller than the SciCan pump and can be identified by the configuration of the wires on top of the pump. The two visible connections are located adjacent and parallel to each other whereas the two visible connections on the SciCan pump are opposing each other and have a thermal switch connecting them. The pump is mounted on two vibration damping rubber brackets. Each bracket is secured to the chassis with two screws. The black lead is attached to controller board J1-5 (LINE) and the white lead is attached to controller board J1-6 (NEUTRAL).
Note: Important information on pump interchangeability:
The Fluid-O-Tech pump is no longer available, but units with this pump can be retrofitted with the SciCan pump ONLY.
The SciCan pump and Ulka pump are NOT interchangeable. They are both still available. If replacing the pump during maintenance or servicing, the same pump must be fitted to ensure the unit works correctly.