Midmark M11 - Page 64

English-64
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:
C983
Note: An error code beginning
with “C98” means the high-limit
thermostat is tripped open.
This is normally due to lack
of water in the chamber.
C983: HEATUP MODE
HI-LIMIT OPEN
UNPLUG / REPLUG UNIT
High-limit thermostat opened for at
least 0.25 seconds during HEAT UP
mode.
Maintenance not performed. Verify weekly & monthly maintenance has been
performed by customer.
Refer to User Guide.
Perform monthly maintenance.
High Limit Thermostats open.
If error code does not reset…
Perform: Thermostat Continuity Test
Meter Reading - Anything but OL
Replace thermostats.
If the unit skips the Fill mode…
Tray rack / tray plate not installed
properly.
Inspect tray rack / tray plate for proper
installation. (The 45 degree angled end
of tray plate must be positioned upward
and to the back of the chamber)
Install tray rack / tray plate properly.
(M11) Mesh filter not in place. Verify filter is in place. Re-Install filter.
Office running back to back cycles. Check if operator is running consecutive
cycles without completing the DRY cycle.
Complete full cycle.
Water level sensor malfunctioning.
Dirty/foreign object touching sensor.
Check sensor. Inspect water level sensor for
foreign objects. (burs, instruments, etc.).
Clean/Dry water level sensor.
(Clean with Speed-Clean and scotch bright pad)
Remove foreign objects.
Perform: Water Level Sensor Test
Replace water level sensor.
If the unit completes the Fill mode…
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.
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 thru
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
thru condensing coil spout.
NOTE: During the HEAT & VENT
modes, it is normal for steam to be
exhausted thru the spout.
Clean / Replace air valve.
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Style A