M9/M11 Sterilizer Printer Supply Voltage Test and Repair
Some procedures require power to be connected with covers removed. Line voltage is present. Use extreme caution to prevent electric shock.

Model |
M9M11 -020 thru -022, -033, -034 |
Serial Number | All |
1.Disconnect sensor harness from J14 on PC board.
2.Set meter to 20 VDC.
3.At J14 on PC board, place meter probes on pins 7 and 8 as shown.
Meter Reading | Required Action |
---|---|
Acceptable range: 4 to 6 VDC |
Perform continuity test on printer harness. If broken wires are found, replace harness. If harness is OK, replace printer. |
Any reading out of the acceptable range |
Replace Main PC board |

Model |
M9M11 -040 thru -043 |
Serial Number | All |
1.Disconnect sensor harness from J14 on PC board.
2.Set meter to 20 VDC.
3.At J14 on PC board, place meter probes on pins 7 and 8 as shown.
Meter Reading | Required Action |
---|---|
Acceptable range: 4 to 6 VDC |
Perform continuity test on printer harness. If broken wires are found, replace harness. If harness is OK, replace printer. |
Any reading out of the acceptable range |
Replace Main PC board |