Tuttnauer 3545 - User Manual

Questions and Answers

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Wendy JohnsSep 5, 2025
Why does pressure build up very slowly in my Tuttnauer 3545?
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  stevencortezSep 5, 2025
  If the pressure builds up very slowly in your Tuttnauer Laboratory Equipment, several factors could be at play. One or more heaters might be burnt out, requiring inspection and replacement. Alternatively, there might be too much water in the chamber; verify the correct water level. A leaky door gasket could also be the culprit; try tightening it, and if the leak persists, replace the gasket. Lastly, the safety thermostat might not be set to the right temperature, causing it to halt heating prematurely; calibrate the thermostat accordingly.
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lawrencerebeccaSep 3, 2025
What to do if the HEAT light is not on in my Tuttnauer 3545?
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  julie11Sep 3, 2025
  If the HEAT light is not on, while the multi-purpose valve is in STE position and the main switch is ON, and the Tuttnauer Laboratory Equipment is experiencing issues such as operating without heat, insufficient heating, or no heating at all, several factors could be responsible. If the bulb is burnt, replace it. If the pressure switch (B10) is set to too low a temperature, adjust it. A faulty Microswitch No.2 or Bridge No. 10 may also be the cause, requiring replacement or fixing, respectively. If there is no heating, the pressure switch (B10) or the safety thermostat might be faulty, necessitating repair or replacement.
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jimeneztoniSep 1, 2025
How to fix water not entering the chamber when the multi-purpose valve is in FILL position in Tuttnauer 3545?
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  znelsonSep 2, 2025
  If your Tuttnauer Laboratory Equipment's multi-purpose valve is in the FILL position but water isn't entering the chamber, there are a few potential causes. First, ensure the reservoir is filled with mineral-free water. If the reservoir is full, the multi-purpose valve or the pipe itself may be clogged. Follow the instructions in para. 11.10 to address these blockages.
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cindy21Aug 29, 2025
What causes the temperature safety device to activate during sterilization cycles in my Tuttnauer 3545 Laboratory Equipment?
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  Luis WhiteAug 29, 2025
  If, during sterilization cycles, the temperature safety device is activated due to overheating in your Tuttnauer Laboratory Equipment, it could be due to several reasons. Check if the amount of water in the chamber is insufficient and add water as needed. Also, verify that the thermostat is set to the correct temperature. A leaking multi-purpose valve, which allows water to return to the reservoir, or a leaking safety valve, or excessive leaks from the air trap jet can also cause overheating. Replace these components as necessary.
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Peter LewisAug 27, 2025
Why is the pressure safety valve activated and heating continues in STE position in my Tuttnauer 3545?
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  Monica SimsAug 27, 2025
  If your Tuttnauer Laboratory Equipment shows sufficient temperature and pressure, but the pressure safety valve is activated and heating continues while in STE position, it indicates that either the pressure switch (B10) is faulty and not stopping the heating at the required temperature, or the pressure safety valve itself is defective. In either case, the pressure switch (B10) should be fixed or replaced, and the pressure safety valve should be replaced if it's faulty.
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Taylor PalmerAug 26, 2025
What to do if the POWER indicator light doesn't light up on my Tuttnauer 3545 Laboratory Equipment?
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  Elizabeth DavisAug 26, 2025
  If the main switch is in the START position but the POWER indicator light doesn't illuminate on your Tuttnauer Laboratory Equipment, first ensure the equipment is receiving power. Check the circuit breaker and lift the lever if it has tripped. If power is available, the main switch itself may be defective and require checking or replacement. You can test the bulb by setting the timer for 15 minutes and turning the multi-purpose valve to the DRY position; if the HEAT & DRY lights illuminate, the POWER bulb is likely burnt and needs replacement. If none of the lights turn on, there may be a fault in the electrical line, which needs to be checked and repaired from the entry point to the main switch.
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Carla GillAug 25, 2025
How to troubleshoot a clogged drain in Tuttnauer Laboratory Equipment?
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  Jeremy DawsonAug 25, 2025
  To address a clogged drain in your Tuttnauer Laboratory Equipment, open the drain by turning it counterclockwise. Place a heavy object over the reservoir cover, and blow compressed air into the drain to force debris back into the reservoir, then clean out the reservoir. If needed, disassemble the drain valve by turning it counterclockwise past the stop point, remove the valve, clean it, and blow out the line. Reassemble the valve by turning clockwise, ensuring the large “O” ring is pressed into the groove on the autoclave.
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david46Aug 22, 2025
What causes 'High Pres' to be displayed on Tuttnauer 3545 Laboratory Equipment?
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  Eddie ChenAug 23, 2025
  The 'High Pres' message on your Tuttnauer Laboratory Equipment can be due to a few reasons. It could mean the air jet is clogged and needs cleaning. Another possibility is that the heating elements are staying on instead of cycling. A faulty or dirty temperature sensor (PT100) could also be the cause. For the latter two issues, it's best to call a technician.