FDI P2131, Technical Manual, Page: 64 / 161

SMU – Water and Steam Related Situations
What do you do if … Response
You hear or see a steam leak
somewhere other than the
door?
If it is safe to do so, turn the control power switch OFF and
allow the sterilizer to cool and depressurize. Contact a
qualified maintenance technician.
You hear or see a steam leak
at the door?
If it is safe to do so, wait for the cycle to finish and then inspect
the door frame and door gasket for any debris that could
prevent a good seal. Closely inspect the gasket for any damage
such as nicks or cuts. Replace it if needed. If there is no
damage, then tighten the door a little tighter on the next cycle.
You get a low water alarm? Add water to the SMU from the WRS, close and tighten the
chamber door, press “RESET,” and restart the cycle. Also,
recheck level in WRS after pumping and refill using the SWS if
needed. It is best to run the WRS at the HIGH water mark
(when the jacket is at the HIGH mark).
The jacket is overfilled with
water?
Turn the sterilizer OFF and let it cool down and depressurize.
With zero pressure on the jacket, attach the high ‐ temperature
hose and drain enough water out of the jacket to bring the level
down to the HIGH mark on the sight gauge. Close the drain
valve and turn the sterilizer back ON.
The jacket fills with water, but
VERY slowly?
Contact a qualified maintenance technician for further
diagnosis and repair on the WRS pump.
The jacket does not refill
when switch on WRS
depressed?
Verify the water level in the WRS, adding water through the
SWS if necessary. Ensure that the power cord is plugged into
the WRS and that the power switch is in the ON position. If the
problem continues, contact a qualified maintenance technician
for further diagnosis and repair.
The water level in jacket
drops when sitting idle and
pressurized?
The check valve at the back of SMU on recovered water line
from WRS could be leaking. Contact a qualified maintenance
technician to replace the check valve.
The SMU seems to be using
more water than normal
during each cycle?
The check valve at the back of SMU on the recovered water line
from WRS could be leaking. Additionally, the steam trap could
be hung open or damaged. Contact a qualified maintenance
technician to inspect/replace the check valve and/or the steam
trap.
The Pressure Safety Valve
opens and releases steam?
Contact a qualified maintenance technician.
If it is safe, turn the sterilizer OFF and disconnect the incoming
power.
There is a lot of water around
the sterilizer?
The source of the water should be identified immediately.
Inspect the hose connections between the SMU and the WRS.
Use a flashlight to inspect and locate the leak. If needed, de ‐
energize and de ‐ pressure the sterilizer, remove the side panels
and inspect all fittings closely.
White/Tan residue in
chamber
Dirty and/or hard water used. SWS not used. Possible cracked
heater element. Inspect heaters and replace if needed. (See
Section 4.3.10)
58