Specifications
- 35 -
: Check the voltages of 
 both heater terminals.
: After operating the heater for more then 
 10 minutes check if the heater temperature 
 remains low.
: A normal heater’s resistance is a few Ω.
 A short circuit increases the resistance 
 to a few MΩ.
YES
YES
NO
NO
NO
YES
YES
NO
YES
NO
Preheating Error (E-08)
Is the heater temperature 
very low?
Is the temperature sensor
connected properly?
Is the resistance 
between the heater terminals 
more then a few MΩ?
Check the heater
 related drive part.
Replace the 
heater.
Reconnect the 
temperature 
sensor properly.
Replace the 
heater.
Does the heater work?
S/W Error
After Power > On,
does the symptom continue?
Replace the PCB.
Perform the operation again and check if it
 is working properly.
4-1-9 E-08










