M9/M11 Sterilizer Fill / Vent Valve Test and Repair
Some procedures require power to be connected with covers removed. Line voltage is present. Use extreme caution to prevent electric shock.
Sterilizer door must be closed to perform fill valve test.
Model Range -020 thru -022, -033, -034
|
Model |
M9M11 -020 thru -022, -033, -034 |
| Serial Number | All |
Fill / Vent Valve: Supply Voltage Test
If you are testing the valve during a specific cycle mode (Fill Mode, Vent Mode, etc), steps 1 thru 3 are not required. Refer to Service Diagnostics section for steps 1 thru 3.
1.Activate the Service Diagnostics Mode.
2.Initiate the I/O Test.
3.Energize the desired valve Fill or Vent.
4.Disconnect wires from valve terminals.
5.Set meter to VDC.
6.Place meter probes wires.
| Meter Reading | Required Action |
|---|---|
|
115V models*: 92.7 to 113.9 VDC |
PC board is OK Perform Continuity Test |
|
230V models**: 186.5 to 228.4 VDC |
PC board is OK Perform Continuity Test |
|
Any reading out of the acceptable range |
Replace PC board |
|
* For input line voltages of: 104 - 127 VAC ** For input line voltages of: 207 - 253 VAC |
|
Fill / Vent Valve: Continuity Test
1.Disconnect wires from desired valve.
2.Set meter to M Ω
3.Place meter probes on valve terminals.
| Meter Reading | Required Action |
|---|---|
|
Anything other than OL |
Valve OK |
|
OL |
Replace faulty valve |
Model Range -040 thru -043
|
Model |
M9M11 -040 thru -043 |
| Serial Number | All |
Fill / Vent Valve: Supply Voltage Test
If you are testing the valve during a specific cycle mode (Fill Mode, Vent Mode, etc), steps 1 thru 3 are not required. Refer to Service Diagnostics section for steps 1 thru 3.
1.Activate the Service Diagnostics Mode.
2.Initiate the I/O Test.
3.Disconnect wires from valve terminals.
4.Set meter to VDC.
5.Place meter probes wires and check reading.
6.Energize the desired valve and check reading. Fill = LED D1 on, Vent = LED D3 on.
| Meter Reading | Required Action |
|---|---|
| Energized Acceptable Range | |
|
115V models*: 92.7 to 113.9 VDC |
PC board is OK |
|
230V models**: 186.5 to 228.4 VDC |
PC board is OK |
| Any reading other than line voltage | Replace PC Board |
| Not Energized Acceptable Range | |
| 115V models = < 10VDC | PC board is OK |
| 230V models = < 20VDC | PC board is OK |
|
Any reading above these voltages |
Replace PC board |
|
* For input line voltages of: 104 - 127 VAC ** For input line voltages of: 207 - 253 VAC |
|
Fill / Vent Valve: Continuity Test
1.Disconnect wires from desired valve.
2.Set meter to M Ω
3.Place meter probes on valve terminals.
| Meter Reading | Required Action |
|---|---|
|
Anything other than OL |
Valve OK |
|
OL |
Replace faulty valve |
