English-65
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 - continued
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.
If the unit completes the Fill mode… - continued
Pressure Leaks. - continued
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.
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.
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)
Sterilizer overloaded. Check the size of the load.
(Refer to User Guide)
Reduce load size.
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