Midmark M9 - C232; C326

SECTION II
TESTING AND TROUBLESHOOTING
© Midmark Corporation 2002 SF-1803 Page 2-9 Printed in U.S.A.
Code C102 FILL
Code
C103 HEATUP
Code
C104 STERILIZE
Code
C105 VENT
Code
C106 DOOR OPEN
(Error Type: RESTART)
(Refer to column on left for
codes and description)
C10X: XXXXXX MODE
STOP PRESSED
ITEMS NOT STERILE
PUSH STOP TO RESTART
Operator pressed STOP
button, terminating that
specific Mode.
Check with person oper-
ating unit.
Explain proper operation.
Note: It may be necessary to
wait briefly (up to 1 minute)
while chamber pressure / tem-
perature dissipates.
Press STOP button to return
to SELECT CYCLE to initiate
a new cycle.
Code
C232.
(Error Type: RESTART)
C232: FILL MODE
WATER LOW
ITEMS NOT STERILE
PUSH STOP TO RESTART
After door is closed or
chamber vented, water fill
(level) sensor did not
detect water level within
the 5 minutes
required time
period.
Reservoir water level
low.
Check water level in Res-
ervoir.
Add water to reservoir so that
it is in the correct range on the
water level label.
Push STOP to restart back to
SELECT CYCLE Mode.
Mesh filter restricted. Check if mesh filter is
clogged.
Clean or replace mesh filter.
Water Fill (level) Sensor
dirty.
Check Water Fill (level)
Sensor for dirt or corro-
sion.
Clean or replace Water Fill
(level) Sensor (Refer to
para 4.21).
Fill Valve or related
plumbing clogged.
Check Water Fill Valve
and related tubing for
restrictions.
Clean or replace Water Fill
Valve (Refer to para 4.18).
Fill Valve coil malfunc-
tioning.
Check continuity of
Water Fill Valve solenoid
coil for open winding.
Replace Water Fill Valve
(Refer to para 4.18).
Plug connection(s) W3 /
W4 loose or discon-
nected or broken wires.
Check Water Fill Valve
connections at W3 / W4
on P.C. Board and
related leads.
Assure W3 / W4 plug connec-
tions are securely connected
and related leads are not bro-
ken.
P.C. board malfunction-
ing
Check for line (115 or
230 VAC) voltage at W3 /
W4.
If no voltage replace P.C.
Board (Refer to para 4.13).
Always
run Service Diagnos-
tics (Para 2.2) before replac-
ing P.C. Board.
Check for 4.5 to 5.0 VDC
at J8 pins 1 & 2 on P.C.
Board.
Run a Service Diagnos-
tics to check functions of
Fill Valve and related
components
If no voltage replace P.C.
Board (Refer to para 4.13).
Always
run Service Diagnos-
tics (Para 2.2) before replac-
ing P.C. Board.
Code
C326.
(Error Type: AUTOMATIC)
C326: DOOR MODE
DOOR CLOSED
OPEN DOOR
Door remains closed one
second after door opening
motor output was turned
from On to Off in an
attempt to open door.
Door may be hanging up
on door opening motor
latch.
Check position of door
(open or closed).
Run Service Diagnostics
and run Door Opening
Tes t .
Run another cycle. If condition
persist where door must be
manually opened check door
opening assembly for adjust-
ment or replace assembly
(Refer to para 4.12).
Door Switch malfunction-
ing.
Check Door Switch con-
tacts to assure they close
when door is closed and
open when door is
opened.
If contact of Door Switch
shows open when door is
closed replace switch (Refer
to para 4.11).
Table 2-3. Troubleshooting Guide
Problem Display / Symptom Probable Cause Check Correction
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