Defrosting Function - Midea FDB Series Service Manual

E0 Ice maker fault
Variable frequency driver board fault analysis
Variable frequency driver board LED
Light
Blink once: light 1S, extinguish 1S
Blink once: light 0.5S, extinguish 1.5S
Blink twice: light 0.5S, extinguish 0.5S, interval
time( extinguish ) is 1.5 second
Blink four times: light 0.5S, extinguish 0.5S, interval
time( extinguish ) is 1.5 second
Blink eight times: light 0.5S, extinguish 0.5S, interval
time( extinguish ) is 1.5 second
Blink sixteen times: light 0.5S, extinguish 0.5S, interval
time( extinguish ) is 1.5 second

9.6 Defrosting function

1）Defrost the freezing chamber as per the accumulative operation time of the Compressor
2）After running 6 hours continuously, enter defrost mode, if defrost mode has been entered, it will not
enter.
sensor.
Step 1: Check whether the terminal CN12 of main
control board is well stuck, pull out the terminal and
Yes re-stick it in place and check if there is any foreign
matter on the terminal
Step 2: Check whether the terminal of ice maker is well
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Service Manual_2018-V1.0
Fault cause
Working
Standby
Overcurrent
Overvoltage
Undervoltage
LOCK
Overload protection