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H3-177
006-252-02
10.22.99 FM2569
FM-DP L
Service Manual
H3-177
MAINTENANCE 3. TROUBLESHOOTING
Power OFF
FP3F0E44.EPS
Y
Is heater normal?
Check at [Heating] of
[Heat Developper] of M-Utility.
N
Replace thermistor.
Does error occur again?
Y
N
Is thermistor normal?
Measure resistance between
both terminals of thermistor.
Refer to "3.5 Troubleshooting
Reference".
Y
Is heater normal?
Check that heater temperature rises
at [Temperature] of [Heat Developper]
of M-Utility.
N
Y
Are cables of thermistor normal?
Check connector connection, cable
conduction, and connector pins.
Check again.
Repair or replace.
N
Replace SNS11A
board.
Replace SNS11A
board.
Press Reset button.
Replace heater.
Y
N
Is current conducted between both
terminals of heater?
Y
Is thermal protector normal?
Check that Reset button is not pushed
up.
N
Repair or replace.
Y
Are cables to heater normal?
Check connector connection, cable
conduction, and connector pins.
N
N
3
Y
2
1
3
3