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Check the heater
connections and
operation
Machine indicates
NTC or heater
fault at the end of
the functional test
Any problems with the
connections of the NTC
Any fault with the
connections of the
heater
Check the main
board and
connections
TROUBLESHOOTING GUIDE FOR A3 TYPE DW'S
Yes
Establish proper
board and NTC
No
Yes
Establish proper
board and heater
No
Check whether the
NTC works
properly
connection
between main
connection
between main
Check whether
there exists any
broken wiring
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