LST900/900D
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Fault & Solutions
Fault
Hot wedge
burned
Thermocouple failure
Replace the thermocouple
Replace the drive board
Drive board doesn't work
Wires "+" and "-" of
thermocouple were
connected wrongly
Connect correctly
Shows on display:
Mosaicgarbled
Press two buttons at the same
time so that it heats
Stop heating
Change the display screen
or board
Display screen or board
doesn't work
Shows on diplay
“thermoc-ouple
ERR”
Shows on diplay
“CT:016℃
ST:Pause”
No thermocouple
Check whether the thermocouple
wire in the display board is off
Replace the thermocouple
Thermocouple burned
Causes
Solutions