| Sterilizer Manufacturer: Tuttnauer |
| Model of Sterilizer: |
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Problem Title:
Tuttnauer Dry Pump Problem |
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Problem Description:
Pump does not turn off |
| Reasons |
| 1. it may be the control board Adjunc out of order |
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Solutions |
| 1. At the end of any dry cycle the Dry Pump will stay on until the door has been opened, even if the Stop Button has been pressed and the cycle aborted. If the door remains closed the Dry Pump will continue to run for 2 hours to insure the sterilized items have properly dried and cooled before shutting itself off. Check if the Dry SSR is being told to turn off. With a DVM read between TP20 and TP1, a 3.5 to 5 volt DC signal tells the Dry SSR to turn off and 0 to 1 volts tells it to turn on. (if the unit has an Ajunc 2 board this check will be made between TP18 and TP1). An incorrect signal would indicate a problem with the control circuit. If the control signal is correct at the test point then check if the signal is at the Dry SSR. A reading across terminals 3 and 4 should show 10 to12 volts DC for the Dry SSR to be turned on and 0 to 1 volt if it should be off If the control signal is not correct at the Dry SSR then the problem is with the Ajunc board and it should be replaced |
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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 |