System Diagnostics

The temperature in the steam generator has exceeded the operational limit.

This may be due to placing too many instruments inside the chamber — exceeding the recommended load can lead to overheating.

Another possible cause is a malfunction in the steam generator or incorrect interpretation of sensor data by the mainboard. In most cases, this is caused by using improper water.

The temperature during the sterilization process has exceeded the allowed limit.
This error may occur if the sterilization cycle is run without a tray in the chamber.
It may also be caused by a malfunctioning electromagnetic valve, a faulty chamber temperature sensor, or a mainboard error.

The pressure inside the sterilization chamber has risen above the set operational limit.

This issue may result from:

• A malfunctioning pressure sensor, or
• A limescale-blocked steam generator, which prevents proper pressure regulation, likely due to poor water quality.

The pressure during the sterilization process is too low.

The most common cause is that the blue water supply hose is not fully submerged in water.

This can happen if:

• The hose is incorrectly positioned inside the water container
• The container is empty
• The hose is damaged

If this is not the issue, the problem may be due to :

• A clogged or worn-out Magic Filter
• A worn-out water pump
• An internal leak in the autoclave.

The temperature during the sterilization process did not reach the required level.

This issue may have several causes:

• A faulty temperature sensor misreading the chamber temperature
• A leak in the system preventing temperature buildup
• Limescale in the steam generator, reducing its efficiency
• A worn-out water pump that fails to supply water properly
• Or a malfunctioning mainboard that misinterprets sensor data
• Using distilled water mixed with alcohol or scented additives, which can negatively affect the sterilization process and trigger this code.
• It’s also possible that poor hose positioning or low water level is interfering with proper operation.

The pressure inside the chamber is too high during the drying phase.

This issue can occur when:

• The red drain hose is immersed in water, preventing proper drainage.
• The hose is kinked, twisted, or improperly routed, which blocks the free flow of condensate.
• The load is too heavy, interfering with proper pressure regulation during drying.

The sterilizer attempted to inject steam too many times without success — likely due to a lack of water supply.

The most common causes include:

• The blue feed water hose is not properly connected to the “water in” port.
• The “Water In” connector is loose or damaged, which may prevent proper water intake.
  • The water tank is empty.
  • The load is too heavy, making it difficult to generate the required amount of steam.
  • Internal issues such as limescale buildup in the solenoid valves or steam generator.
  • A worn-out water pump that no longer provides sufficient water pressure.

he system has detected a blockage in the wastewater drainage circuit.

Blockages can be caused by:

• Clogged hoses or drainage channels
• Debris inside the chamber outlet – often from sterilization pouches (dust, paper particles)
• A sterilization pouch falling out of the tray and becoming lodged at the back of the chamber, blocking the drain outlet.
• A full wastewater bottle (red cap)
• The red drain hose being kinked or improperly routed

Over time, particles from sterilization packaging can accumulate and cause obstruction in the internal hydraulic system. Regular cleaning and maintenance are essential to prevent this.

The autoclave was unable to reach the required temperature on the chamber walls.

Several components may be responsible for this issue, including:

• Defective heating elements
• A faulty power relay on the control board
• Issues with the power supply module
• Damaged wiring harnesses
• A malfunctioning mainboard
• Improper electrical connection or insufficient power supply – One frequent cause is connecting the autoclave to a power strip (multi-socket) that also supplies other devices. This can lead to voltage drops and unstable operation.

The steam generator failed to reach the required operating temperature.

This issue most commonly points to a failure in the steam generator’s heating elements. Other possible causes include:

• Damaged heating elements (check resistance according to Enbio guidelines)
• A faulty power supply relay or damaged wiring between the power supply and the generator
• A failure in the power board (e.g., faulty relay)
• A malfunctioning mainboard

Vacuum time exceeded – The device is having trouble generating vacuum at the right level in the required time.

Possible causes include:

• Worn or contaminated chamber door gasket
• A blocked or kinked red drain hose
• A full wastewater container (red cap)
  • A vacuum pump malfunction
• Problems with the safety valve, solenoid valves, or heat exchanger
• More severe failures involving the steam generator, sterilization chamber, or mainboard

A momentary power failure or short circuit occurred during device operation — most often at the beginning of the sterilization cycle.

The issue may be caused by:

• A short circuit in the autoclave or power outlet
• Faulty electrical wiring in the installation site
• Internal faults in components such as the valve wiring harness or heating elements

Pressure was detected in the chamber while the autoclave was idle. This often occurs when a hot chamber remains sealed, causing a vacuum or overpressure that leads to incorrect sensor readings.

The system detected a malfunction in the door locking mechanism.
This issue may be caused by internal parts faults.

The system was unable to unlock the chamber door after the cycle.

The unlocking issue may be caused by:

• Residual pressure remaining in the chamber
• A fault in the door release mechanism
• Problems with the actuator, sensor, or mainboard

The autoclave detected an issue during the decompression phase — likely involving the V3 valve or the HEPA filter.

This fault may result from:

• A clogged HEPA (bacteriological) filter, restricting airflow
• A blocked or faulty V3 solenoid valve responsible for decompression
• In rare cases, a mainboard malfunction causing incorrect sensor interpretation.

Remember! Replace the HEPA filter every 1000 cycles or every 12 months.

The autoclave detected a malfunction in the pressure sensor.
This sensor is integrated with the mainboard, which means the entire mainboard must be replaced in case of failure.

The device does not detect any USB memory stick.. This typically indicates a failure of the USB medium.

This may result from:

• A damaged or incompatible USB drive
• A malfunction in the USB port, internal cable, or control board
• A mainboard malfunction affecting data transfer

During the sterilization cycle, thechamber temperature remained belowthe required minimum threshold.

This issue typically indicatesincorrect sensor readingsor failure to properly heat the chamber. In most cases, it is due to amalfunctioning mainboard, which requires replacement.

A malfunction was detected in the chamber temperature sensor, often indicated by sudden or irregular temperature readings.

Sudden or irregular changes in steam generator temperature readings indicate a sensor fault.

This issue may be caused by:

• A damaged temperature sensor in the steam generator.
• A mainboard malfunction misinterpreting sensor signals.

The system detected abnormal or sudden changes in temperature during the sterilization process, indicating a possible sensor fault.

This may be due to:

• A damaged process temperature sensor
• A mainboard malfunction affecting temperature data interpretation.

The autoclave’s internal components are too cold to safely begin the sterilization cycle. This often occurs when the unit is moved from a cold to a warm environment.

What’s the cause?

• The device has not yet reached the minimum operating temperature.
• Possible sensor error in the chamber or steam generator.

The autoclave detected an issue with internal flash memory.

Most commonly, this is due to adischarged batteryon the mainboard.

The device was unable to perform the vacuum test.

Possible Causes:

• A leak in the chamber
• Leaky solenoid valves (V1 / V2 / V3)
• A faulty safety valve
• Issues with the steam generator or pressure sensor
• A worn-out or dirty chamber door gasket, which prevents proper sealing.

The autoclave detected residual pressure in the chamber during standby mode.

This typically occurs when ahot sterilizer is left with the chamber closed(e.g. overnight). As the unit cools down, avacuum is formed, which the sensors interpret as a pressure error during the next startup.

Pressure stabilization when the device is idle — equalization to atmospheric pressure.

Possible Causes:

A sterilization pouch may have fallen out of the tray and become lodged at the back of the chamber, blocking the drain outlet
A malfunctioning control board, which misreads pressure levels and falsely triggers this message.