English-23
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:
C533 - continued
C533: HEATUP MODE
STEAM TEMP LOW
ITEMS NOT STERILE
UNPLUG / REPLUG UNIT
Sterilization Mode not reached after 25
minutes.
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.
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.
Leaking or defective Pressure Relief Valve.
Check for water / steam leakage from
beneath the rear of the sterilizer.
Perform: Pressure Relief Valve Test
Replace pressure relief valve.
Pressure transducer tubing leaking.
Check for steam leakage at pressure
transducer tubing connections.
Secure pressure transducer tubing
connections with high temperature cable ties.
Check all plumbing fitting connections for
leakage.
Tighten or replace fittings.
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