Midmark M11 - Page 19

English-19
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:
C326
C326: DOOR MODE
DOOR CLOSED
OPEN DOOR
Door switch indicates that the door
remains closed one second after door
motor has attempted to open door.
Door spring missing / damaged. If the door motor releases the latch, but the
door remains closed. Inspect door spring for
damage.
Replace door springs.
Verify if door is at the vented position.
(Push in on door with out lifting handle)
Verify the QTY of door springs.
(M11- QTY 2, M9-QTY 1)
Verify door springs are at a 45 degree angle. Place door spring at a 45 degree angle.
Door / Dam gasket(s). Inspect door / dam gaskets for proper
installation and any signs of sticking.
Install door / dam gaskets properly.
If new gasket, check if wire ring in gasket is
preventing gasket from fully being seated.
Temporarily remove wire ring.
Re-install wire ring after gasket is fully
seated.
Trays not pushed in properly. Be sure trays slide in properly. Remove obstructions that prevent the
trays from sliding in completely.
Door pins / latch binding. With door open, door handle should move
Up / Down freely.
Clean door pins / latch mechanism.
(Clean with Synthetic Dry Protectant -
Aerosol / Spray on)
Tightened door pins/latch mechanism.
Inspect latch mechanism for wear / damage. Replace worn / damaged components.
Door motor system / latch
“hanging up”.
Remove the door cover and RH side panel. With
the door closed, run the
‘Door Open Test’. Watch for any
mechanical issues that may prevent the
door from opening. Refer to:
Service Diagnostics (I/O Test)
Replace worn / damaged components.
Verify door motor is angled as close to
PC board as possible.
Adjust door motor angle.
Check if the connecting rod is installed in the
proper location on the door motor cam.
(9 for M9, 11 for M11)
Install connecting rod in the proper
9 or 11 location on the door motor cam.
Door motor defective.
Remove the door cover and RH side panel. With
the door closed, run the
‘Door Open Test’. Watch for any
mechanical issues that may prevent the
door from opening. Refer to:
Service Diagnostics (I/O Test)
Replace door motor.
Door hinge binding. Check for binding or build up of debris
in the door hinges.
Clean debris from hinges.
If debris cannot be cleaned from hinges
to remove binding
Send unit to Midmark for factory
Repair and Return.
midmark.com
Style A