Midmark M11 - Page 12

English-12
004-1032-00
TP210 Rev. A
© 2012 Midmark Corp. | 60 Vista Drive Versailles, OH 45380 USA | 1-800-643-6275 | 1-937-526-3662 |
[Revised: 8/15/17]
Troubleshooting Chart - continued
Problem Display / Symptom Cause Check Action
Pouches / Packs Hot
Pouches / packs appear discolored
after cycle is complete.
Excessive dry time. Check the dry time for the cycle parameter. Adjust dry time.
(factory preset is 30 minutes.)
Maintenance not performed. Verify weekly & monthly maintenance has
been performed by customer.
Refer to User Guide.
Perform monthly maintenance.
Sterilizer overloaded. Check the size of the load.
(Refer to User Guide)
Reduce load size.
Sterilizer is not level.
(remove tray / trays)
Verify support surface is level. Place sterilizer on a level support surface.
Verify water on all sides of chamber
are equal.
Temperature sensor malfunctioning. Check for residue build up on temperature
sensor.
Clean sensor probe with Speed-Clean,
distilled water, and abrasive pad.
Check that nothing is touching or crowding
the temperature sensor.
(Example: trays, pouches, cassettes, etc.)
Reposition items so nothing touches or
crowds the temperature sensor.
Perform Temperature Sensor Resistance
Test. Allow sensor to cool to room
temperature before testing.
Acceptable range 1.07-1.1K Ω.
Refer to:
Temperature Sensor Resistance Test
Replace temperature sensor.
Perform Temperature Sensor Supply
Voltage Test. Disconnect sensor harness
from J12 on PC board. On pins 1 & 2
acceptable range is 4.0 - 6.0 VDC. Refer to:
Temperature Sensor Supply Voltage Test
Replace Main PC board.
Door hinge binding. Check for binding or build up of debris
in the door hinges.
Clean debris from hinges.
PC Board malfunctioning.
Perform:
Heating Element Supply Voltage Test
(With harness attached to leads should
have line voltage in test mode)
Replace Main PC board.
Perform: Main PC Board Relay Test
(Check TP1 & TP2 for an acceptable range:
10 to 14 VDC)
Perform: Main PC Board Pressure
Transducer Voltage Test
(Acceptable range: 4.0 to 6.0 VDC)
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Style A