Midmark M11 - Page 54

English-54
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:
C672
C672: FILL MODE
PRESSURE OVERLIM
UNPLUG / REPLUG UNIT
Gauge pressure inside chamber is
greater than 34.8 psig (240 kPa)
during FILL mode.
Defective Air valve. Leaking or defective air valve.
Perform: Air Valve Test
Check for excessive steam coming
thru condensing coil spout.
Clean / Replace air valve.
Pressure tubing at incorrect angle. Check tubing for restrictions and
ensure tubing is angled down and
away from the PC Board.
Adjust pressure tubing to correct angle.
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)
Error Code:
C673
C673: HEATUP MODE
PRESSURE OVERLIM
ITEMS NOT STERILE
UNPLUG / REPLUG UNIT
Gauge pressure inside chamber is
greater than 34.8 psig (240 kPa)
during HEAT UP mode.
Sterilizer overloaded. Check the size of the load.
(Refer to User Guide)
Reduce load size.
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.
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.
Defective Air valve.
Leaking or defective air valve.
Perform: Air Valve Test
Check for excessive steam coming
thru condensing coil spout.
Clean / Replace air valve.
Pressure tubing at incorrect angle. Check tubing for restrictions and
ensure tubing is angled down and
away from the PC Board.
Adjust pressure tubing to correct angle.
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Style A