DMW-22-TDL SERVICE MANUAL
Confidential and proprietary information of Meister Cook, LLC. Not to be reproduced or used in any manner other than
with the express written permission of Meister Cook, LLC.
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Low resistance
-
Check for crossed thermocouple
connections
-
Check for damage to wire harnesses
-
Check for short circuits
-
Test for proper heater current draw
from power supply
-
Test with new UI board
“FLT! 1111”
-
Verify this occurs at times other than
power down
-
Check if system works if plugged into
another outlet or circuit
-
Check for damage to wiring harnesses
-
Test with new power supply
-
Test with new UI Board
Loud noise continuous coming
from system
-
Verify noise can be easily heard from
5-6 feet away from the system
-
Check for foreign objects or debris in
system
-
Test with new blower
Garbled text on display
-
Cycle power to system
-
Restore system defaults
-
Check connections to UI Board
-
Check programming port on UI Board
for bent pins
-
Test with new UI Board
Smoke generated by system
-
Have operator shut off system
immediately, if they have not already
done so
-
After shutting off the system, have
operator unplug system from outlet
-
Verify no obvious foreign objects are
present
-
Check for presence of foreign objects
-
Check for damage to wire harnesses
-
Check for short circuits
-
Test for proper heater current draw
from power supply
-
Test with new UI Board
Popping noise coming from
system
-
No resolution over the phone
-
Check for damage to wire harnesses
-
Check for short circuits
When assisting over the phone, it is essential to gather as much information as possible. Such data
includes, but is not limited to:
Site information (store number, location phone number, contact(s))
Number of systems, along with serial number(s) and location(s) within the store
Serial number of system under complaint
Reported fault symptom(s)
Frequency of fault symptom(s)
Make sure the caller is in front of the system under complaint. It is essential for them to be able to
exactly describe the failure symptom(s). When in doubt, err on the side of asking too many
questions.
If the caller is reporting problems with temperature and/or quality of
food products
being served
from the DMW, it is essential to re-direct them to the system to determine if there is an actual fault
with the DMW. Food product temperature and/or quality can potentially be linked to several factors
unrelated to the DMW.
