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• Situation : PCB shows "H7".
cause)
Dry heater is cut-off.
Fuse temp. is cut-off.
repaire method)
replace the Dry heater.
replace the Fuse temp.
checking point
FUSE
TEMPERATURE
HEATER DRY
THERMISTOR
part name
checking results
HEATER
dry Heater is short or cut-off.
SENSOR TEMP.
Thermistor is short or cut-off.
FUSE TEMP.
FUSE TEMPERATURE is cut-off.
57
repaire method
replace the
dry Heater.
replace the
Thermistor.
replace the
FUSE
TEMPERATURE.
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