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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 part name checking results repaire method
HEATER
SENSOR TEMP.
FUSE TEMP.
dry Heater is short or cut-off.
Thermistor is short or cut-off.
FUSE TEMPERATURE is cut-off.
replace the
dry Heater.
replace the
Thermistor.
replace the
FUSE
TEMPERATURE.
THERMISTOR
HEATER DRY
FUSE
TEMPERATURE
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