Table of Contents
Advertisement
CHECKING FLOW CHART BY FAILURE
Convection fan not work, F7?
Unplug the unit
1
Check the resistance of each
fan motor. Normal?
(Measure the resistance after
cooling down.
The resistance is shown below)
Fan motor
Fan High
Fan Low
No
Replace the
Fan motor
Fan High
Fan Low
Ω
Resistance[
]
Approximately
25 ± 10%
30 ± 10%
Yes
2
Is the fan motor
relay normal?
Measure the resistance of
fan motor relay and Live
Normal: infinite
Abnormal: shorted
5
th
and 7
3
th
pin and 7
9-20
No
Replace the
failed heater
Conv. Fan
High
th
pin of CN53 : RY 8
Conv. Fan
Low
th
pin of CN53 : RY 9
yes
Advertisement
Table of Contents
