Midmark M9® -05x / M11® -05x Sterilizer Troubleshooting 09 Display Interface Error Codes

WARNING

To prevent risk of shock always disconnect power before removing covers or performing any service procedure.

WARNING

Some procedures require power to be connected with covers removed. Line voltage is present. Use extreme caution to prevent electric shock.

Error Code Display Screen Cause Action

0906-1B00:
CONTROL BOARD ERROR

Missing communication with control board

Display was not able to communicate with other CAN nodes during power up.

Check CAN harnesses.

Remove power for 10 seconds. Plug back in and see if error clears. If not, replace PCB.
Error Code Display Screen Cause Action

094A-1080:
UPDATE ERROR

Software update file corrupted or incompatible

Subsystem responded with invalid data on the CAN bus when checking firmware update compatibility.

Check CAN harnesses.

Remove power for 10 seconds. Plug back in and see if error clears. If not, replace PCB.
Error Code Display Screen Cause Action

0954-0A[m]8:
POWER LOSS ERROR

Display lost power during [m] Mode

 

Modes 2, 3, 4: Instruments not sterile and need to be reprocessed.

Modes 5, 6, 7: Risk of recontaminated instruments.

Any other Mode: [not applicable]

Power was lost or the display reset during a sterilization cycle.

Check board connections, check power supply voltage, check control board fuses.

Remove power for 10 seconds. Plug back in and see if error clears. If not, replace PCB.

Check display interface software version. If v01.00.04, ensure that Custom Cycle name is no longer than 15 characters.
Error Code Display Screen Cause Action

094E-0E10:
EXPORT ERROR

Insufficient memory on your flash drive

When attempting to export records, the drive ran out of space.

Replace thumb drive.

Remove power for 10 seconds. Plug back in and see if error clears. If not, replace PCB.
Error Code Display Screen Cause Action

095E-4340:

IDEAL PRESSURE ERROR

Ideal pressure out of range during sterilization

 

Check BI or CI indicators to determine cycle status.

Chamber pressure during sterilization is out of ideal range calculated using the altimeter reading and chamber temperature, compared to within 20% of ideal steam table values.

Check that sterilizer is level.

Check door gasket.

Clean chamber filters.

If errors persist, replace control PCB.

 

Maintenance not performed.

Verify weekly and monthly maintenance has been performed by customer. Refer to User Guide.

Perform monthly maintenance.

 

Sterilizer is unlevel.

 

Verify support surface is level.

Remove tray/trays.

Verify water on all sides of chamber is equal.

Temperature sensor malfunctioning.

Chamber temperature rose above upper sterilization temperature limit during Sterilization mode.

Check for residue buildup on temperature sensor probe.

Clean with Speed-Clean, distilled water, and abrasive pad.

Verify that nothing is touching or crowding the temperature sensor (e.g., trays, pouches, cassettes).

Perform Temperature Sensor Resistance Test.

Allow sensor to cool to room temperature before testing.

Acceptable range: 1.07 to 1.1K Ω

Refer to: Temperature Sensor Resistance Test

Replace temperature sensor.

Perform Temperature Sensor Supply Voltage Test.

Disconnect sensor harness from J6 on PC board.

On pins 1 and 2, acceptable range is 4.0 to 6.0 VDC.

Refer to: Temperature Sensor Supply Voltage Test

Replace main PC board.

Not enough water.

Check diameter of chamber water level sensor.

Replace if .750 inch diameter.

Pressure leaks.

Check for loose/worn door and dam gaskets or water leaking around door.

Verify door and dam gaskets are installed properly.

Replace gasket kit 1x year.

Clean/replace gaskets.

Replacement fill / vent valve solenoid requires rectifier harness for DC coil.

Install rectifier harness.

Check for voltage flow through rectifier harness. Refer to:Fill / Vent Valve Supply Voltage Test

Replace rectifier harness.

Leaking or defective vent valve:

Check for water leaking from condensing coil spout. Perform Vent Valve Test.

Clean/replace vent valve.

Leaking or defective fill valve:

Check for water leaking back into reservoir through the fill line.

Look for bubbles coming from bottom of reservoir.

Perform Fill Valve Test.

Clean/replace fill valve.

Leaking or defective air valve:

Check for excessive steam coming through condensing coil spout.

During the HEATING and VENTING modes, it is normal for steam to be exhausted through the spout.

Clean/replace air valve.

Leaking or defective Pressure Relief Valve:

Check for water/steam leakage from beneath the rear of the sterilizer.

Perform Pressure Relief Valve Test.

Replace pressure relief valve.

Pressure transducer tubing leaking:

Check for steam leakage at pressure transducer tubing connections.

Secure pressure transducer tubing connections with high temperature cable ties.

Check all plumbing fitting connections for leakage.

Tighten or replace fittings.

Heating element malfunctioning.

Inspect heating element.

Heating element should lay flat in the bottom of the chamber and be free of any flaking/pitting.

Perform Heating Element Resistance Test (should read 9 to 11 Ω for 115V model and 34 to 42 Ω for 230V model).
Replace heating element.

PC board malfunctioning.

Perform Heating Element Supply Voltage Test.

With harness attached to leads, should have line voltage in test mode.

Perform Main PC Board Relay Test.

Check TP1 and TP2 for an acceptable range of 10 to 14 VDC.

Perform Main PC Board Pressure Transducer Voltage Test.

Acceptable range: 4.0 to 6.0 VDC
Verify unit is operating within designated program parameters. Refer to: Using a Pressure Gauge
Replace Main PC board.
Error Code Display Screen Cause Action

0940-0C05:
OPERATING MODE

Not responding in power up mode

Display board not communicating during power up.

Check CAN communication connections between boards.

Remove power for 10 seconds. Plug back in and see if error clears. If not, replace PCB.
Error Code Display Screen Cause Action

095B-4505:
RECOVERY ERROR

SD card not found.

SD card is not mounted.

Remove and re-insert SD card. Remove power for 10 seconds. Plug back in and see if error clears. If not, replace SD card.

Remove power for 10 seconds. Plug back in and see if error clears. If not, replace display PCB.
Error Code Display Screen Cause Action

095B-0D05:
RECOVERY ERROR

Unable to read from SD card.

Data on the SD card could not be read.

Remove power for 10 seconds. Plug back in and see if error clears. If not, replace SD card.

Remove power for 10 seconds. Plug back in and see if error clears. If not, replace display PCB.
Error Code Display Screen Cause Action

095B-0E05:
RECOVERY ERROR

Backup Failed.

Data could not be written to SD card.

Remove power for 10 seconds. Plug back in and see if error clears. If not, replace SD card.

Remove power for 10 seconds. Plug back in and see if error clears. If not, replace display PCB.
Error Code Display Screen Cause Action

095B-1D05:
RECOVERY ERROR

Insufficient memory on your SD card.

SD card storage is (nearly) full.

Remove power for 10 seconds. Plug back in and see if error clears. If not, replace SD card.

Remove power for 10 seconds. Plug back in and see if error clears. If not, replace display PCB.
Error Code Display Screen Cause Action

095F-161C:
FAILED TO START CYCLE

The cycle could not be started.

Display attempted to start a cycle, but did not see the sterilizer move to fill mode.

Check CAN harnesses. Remove power for 10 seconds, plug back in and see if error clears. If not, replace PCB.
Error Code Display Screen Cause Action

0904-1309:
MEMORY ALMOST FULL ERROR

Memory in Sterilizer Display Control is almost full.

Display is running out of space on the EMMC for storing records.

Remove power for 10 seconds, plug back in and see if error clears. If not, replace PCB.
Error Code Display Screen Cause Action

0904-0E09:
MEMORY WRITE ERROR

Unable to store new Sterilizer Records to Display Control Memory.

Display was unable to write record data to the EMMC.

Remove power for 10 seconds, plug back in and see if error clears. If not, replace PCB.