| Sterilizer Manufacturer: Tuttnauer |
| Model of Sterilizer: |
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Problem Title:
Tuttnauer E Pressure Problem |
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Problem Description:
Unit heats but will not build or maintain pressure |
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Solutions |
| 1. The unit is not getting the proper voltage from the wall outlet, A low voltage will delay or prevent the build up of pressure. The proper voltage range for 110 volt machines is between 110 and 125. The proper range for 220 volt machines is between 220 and 235 volts. The Water Sensing Electrode may be dirty The Chamber Strainer at the rear of the autoclave may be clogged The unit is not filling with the proper amount of water The Door is not fully closed and Door Gasket is leaking The Door Bellows is leaking The Air Jet is leaking excessively. The Safety Valve is leaking The items being sterilized are absorbing all the available steam Remove cover -- With the unit unplugged take an ohm reading at the Heating Elements and compare the reading to Table 9.1 ”°Ohm & Amp Readings”± For instructions on how to properly check the Heating Elements Check that all valves are closing properly and not leaking due to problems with the plunger or debris lodged in the valve. Fill Valve, Exhaust Valve, Air Outlet Valve and Dry Valve (only on EA or EKA units) Check if any fittings have come loose or are broken and are leaking. Plug the unit in and turn it on, make sure there is sufficient water in the reservoir and that the door is tightly closed. Select a sterilization program, set the temperature for 273 F (134 C) and press Start on the front keypad. The unit should fill and begin to heat up. The heating elements should come on and stay on until the pressure reaches approx. 25 psi. At this point the heaters should alternate on and off for the duration of the cycle. Verify that the heaters are getting line voltage across the terminals. Also verify that the heaters are cycling on and off properly by either monitoring the line voltage across the element terminals or amperage on the wires going to the elements. Refer to Table 9.1 for the proper amperages for each model machine. For more detailed instructions on testing the Heating Elements. If the Heating Elements are not receiving the proper voltage or cycling properly then: Check for any loose or broken wires Check the Safety Thermostat on units with control proms earlier than T93N3 Check the Heat SSR and the control circuitry Check if the Chamber has become porous or corroded and is leaking. |
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The technical information is just to help sterilizer users as reference to do their trouble shooting. no guarranty implied. For each specific technical help to do with sterilizers or autoclaves, go to www.sterilizers.com ... or call 1-800-801-9934 Contact Us |