SES 2000 Vac (LS3) AUTOCLAVE Part 3
ST-SM45g Page 23 of 53
PART 3 MAINTENANCE
Fault Possible Cause Remedy
(28) ERROR 17: Band heater not reaching setpoint
Insufficient drying. temperature due to:
(a) Calibration error. (a) Check calibration (para.57
onwards ).
(b) Band heater sensor faulty. (b) Fit new sensor (para.30).
(c) Control board faulty. (c) Fit new control board (para.9).
(d) Faulty solid state relay or (d) Fit new SSR board if connec-
connections. tions satisfactory (para.26).
Also see Appendix B
(e) Faulty band heater. (e) Fit new band heater (para.34).
PARTS REPLACEMENT AND ADJUSTMENT
WARNING
Switch-off and disconnect mains power supply
before removing autoclave cover, or doing
maintenance procedures.
Check that chamber is at atmospheric pressure
before opening the door.
When the door is opened beware of possible
very hot water or steam escaping from the
chamber.
Autoclave Cover (Fig. 2.2, item 18)
Removal
3 To remove the cover:
CAUTION
An earth lead is connected between the terminal
block and the earth stud inside the rear of the cover.
Disconnect the lead before removing the cover
completely.
a Unscrew and remove the four cover screws (two on
each side) from the casing lower edge.
b Remove reservoir lid.
c With unit facing towards you, remove the cover
lifting it from the rear of the unit first.
Refitting
4 To refit the cover:
a Re-connect the earth lead between the terminal
block and the earth stud inside the rear panel of the
cover.
b Carefully locate
the tabs at the front of the cover into
the slots in the top of the front panel of the unit,
then
press the cover down in position.
c Refit the four cover screws and the reservoir lid.
Reservoir Assembly (Fig. 2.2, Item 16)
Removal
5 Remove reservoir assembly as follows:
a Remove reservoir cover.
b Pull off silicone tubing from manifold connection.
c Disconnect discharge and fill tubes from the manifold,
ensuring that the manifold fittings do not rotate
whilst releasing the compression nuts.
d Disconnect reservoir float sensor electrical
connections.
e Withdraw reservoir and manifold from autoclave,
whilst guiding the drain tube up through the chassis
floor and dividing panel.
Cleaning
6 Clean reservoir and manifold as follows:
a Separate the manifold and reservoir.
b Wash the manifold and reservoir in a weak solution
of detergent and tap water.
c Rinse all cleaned components thoroughly with tap
water to remove any residual detergent. Allow
components to dry.
d Clean or replace water filter.
Assembly
7 Assemble and refit reservoir assembly and fill with
distilled water.
Note: If fitting the drain tube to the reservoir connection,
dip the end of the tube in warm water first to soften it.
Transformer (Fig. 2.4, item 17)
8 Detach the transformer connections, noting the
position of each one. Remove cable-tie and two nylon
thumb nuts then withdraw transformer. The replacement
transformer should be an identical unit, rated at 50VA. To
fit replacement transformer, reverse the removal procedure.
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