Airwell YCV280, Installation And Maintenance Instructions Manual

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yes
[102]
DC motor driving board EEPROM failure
no
if wire between fan motor
and module is connected
normally
re-connect and test again
replace motor and module
yes
[103]
DC motor driving board overcurrent or current sensor broken down
no
if wire between fan motor
and module is connected
normally
re-connect and test again
yes
no
if it is normal after replacing
motor and module
module is ok, replace motor and
re-test
motor and module broken down
[104] voltage too low protection of DC motor driving board
no
yes
if voltage between
P[+] and N[-] of
module >202VDC
if voltage between L and
N of module >140VAC
no
check wire and
input voltage
if it resumes
automatically after
being electrififed
for 3 minutes
yes
no
motor and
module are ok
replace motor
and module
yes
replace module
404