| Problem |
Solution |
| 1. Water will not enter chamber when fill-vent switch is pressed. |
a) Reservoir empty or not full.
b) Unit not plugged into "LIVE" outlet.
c) Defective FILL/VENT switch.
d) Defective Solenoid
e) Tubing clogged
|
| 2. Water continues to enter chamber after fill/vent switch is released. |
a) Defective FILL/VENT switch.
b) Defective solenoid.
c) Debris on solenoid seat.
|
| 3. Water enters chamber slowly |
a) Water in reservoir tank is low.
b) Tubing clogged
c) Solenoid clogged
|
| 4. Cycle on indicator does not light. |
a) Defecrive light
b) Unit not plugged into "LIVE" outlet
c) Low water cut-off not reset
d) Low water cut-off defective
e) Defective mode selector switch
|
| 5. Heat on indicator does not light. |
a) Defective light
b) Unit not plugged into "LIVE" outlet
c) Low water cut-off defective
d) Low water cut-off not reset
e) Defective mode selector switch
f) Timer is in "OFF" position
g) Defective timer
h) Defective TEMPERATURE/PRESSURE control
|
| 6. Heating element does not heat when mode selector switch is in STERILIZE
position. |
a) Defective heating elements
b) Unit not plugged into "LIVE" outlet
c) Low water cut-off not reset
d) Low water cut-off defective
e) Defective mode selector switch
f) Timer is in "OFF" position
g) Timer is defective
|
| 7. Heating element does not heat when mode selector switch is in DRY position. |
a) Same as 6 (above) |
| 8. Sterilizer does not come up to the desired temperature. |
a) Temperature regulator not properly adjusted (see below)
b) Defective steam trap
c) Defective safety valve.
d) Defective thermometer
e) See 6
|
| 9. Steam leaks around door during cycle. |
a) Door closed improperly
b) Worn door gasket
c) Insufficient door tension, tighten locking hub
|
| 10. Sterilizeer does not shut off or complete cycle. |
a) Defective timer
b) Low water cut-off open
|
| 11. Buzzer does not sound at the end of STERILIZE or DRY cycle. |
a) Defective buzzer
b) Defective time delay relay
c) Defective timer
|
| 12. Buzzer will not shut off. |
a) Defective time delay relay
b) Defective timer
|
|
Temperature Regulator Adjustment - This sterilizer has been factory
set at sea level, to obtain a maximum temperature of 272F. The maximum
temperature will decrease approximately 1F per 1000 feet increase in elevation
above sea level. The maximum temperature can be adjusted as follows:
1) With the sterilizer operating at maximum temperature (regulator knob
turned counter clockwise) loosen set screw in temperature regulator knob,
using a 5/64 Allen key. Remove knob from temperature regulator shaft by
pullingknob straight out.
2) Using a straight screw driver, rotate the temperature regulator shaft
counter clockwise until the HEAT ON indicator lights. When the HEAT ON
indicator goes out, observe the maximum temperature. If the maximum temperature
is below 272F, rotate the temperature regulator shaft counter clockwise
as above. Continue this procedure until the maximum temperature (the point
at which the HEAT ON light just goes out) is 272F. The minimum temperature
(the point at which the HEAT ON light just comes on) will be approximately
270F. The maximum temperature of the sterilizer is now properly set.
3) Replace the temperature regulator knob with the white indicator pointing
up in the 12 o'clock position. Tighten set screw.
|
|
Steam Trap - If the sterilizer will not exceed 212F or if the
sterilizer is taking too long to come up to operating temperature, the
steam trap, Item 26 located in the reservoir is not operating properly
and will have to be cleaned or replaced as follows:
1) Disconnect unit from power outlet and allow unit to cool.
2) Remove six screws holding cover to base. Lift cover straight up.
3) Loosen 1/4" compression nut on tubing connected to Item 24. Remove
5/8 hex nut, Itwm 24 from union nipple, Item 85.
4) Remove trap assembly from reservoir.
5) To clean steam trap, secure lower nut in table vise and open top nut.
Remove diaphragm and bellows assembly and stainless seat located inside
steam trap. Reassemble the steam trap making sure that the two brass rings
are located beneath the diaphragm plate. Tighten the top nut securely.
Replace steam trap in sterilizer, operate unit. If sterilizer does not
operate properly replace steam trap.
|
| Safety Valve - Do not attempt to repair the safety valve, Item
25. Replace the safety valve if it opens below 30 PSI (274F) or if it does
not open above 36 PSI (282F). To reset the safety valve, shut the power
to heaters off , disconnect unit from power outlet, and allow the sterilizer
to cool until the safety stops bleeding. |
| Replacement of Door Gasket - Pry out the old gasket, check the
channel and remove all foreign matter. Place new gasket into position and
squeeze into place. |
| Door Adjustment - Steam leaking from the door is an indication
of a defective gasket or insufficient compression of the gasket to insure
an adequate seal. To increase the pressure on the gasket, tighten locking
hub. If insufficient pressure cannot be obtained by adjustment of the locking
hub, replace the door gasket , Item 20. |
