Midmark M11 - Page 39

English-39
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
Error Code:
C577 - continued
C577: DRY MODE
STEAM TEMP OVERLIM
ITEMS NOT STERILE
UNPLUG / REPLUG UNIT
Steam temperature exceeds 284°F
(140°C) during DRY mode.
Temperature sensor malfunctioning. Check for residue build up on temperature
sensor probe.
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.
Heating element malfunctioning.
Inspect heating element. Heating element
should lay flat in the bottom of the chamber.
Heating element should be free of any
flaking / pitting.
Perform: Heating Element Resistance Test
(should read 9-11 Ω)
Replace heating element.
Facility voltage too high / low. Test facility supply voltage.
Voltage must be...
115V models: 104 - 127 VAC 50/60 Hz
230V models: 207 - 253 VAC 50/60 Hz
Contact an electrician to modify voltage.
Door motor system / latch
“hanging up”.
Check if the connecting rod is installed in the
proper location on the door motor cam.
(9 for M9, 11 for M11)
Install connecting rod in the proper
9 or 11 location on the door motor cam.
Error Code:
C633
C633: HEATUP MODE
PRESSURE LOW
ITEMS NOT STERILE
UNPLUG / REPLUG UNIT
This will occur if chamber pressure
does not reach 1 psi within one
minute after air valve closes; or if
chamber pressure does not reach
4.93 psi within 25 minutes after
starting the HEAT UP mode.
Maintenance not performed. Verify weekly & monthly maintenance has been
performed by customer.
Refer to User Guide.
Perform monthly maintenance.
Sterilizer is unlevel.
(remove tray / trays)
Verify support surface is level. Place sterilizer on a level support surface.
Verify water on all sides of chamber
are equal.
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