4. Troubleshooting
: 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
“E-23, E-26” is displayed.
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.
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