48
10.3.3.9 High temperature protection of condenser (ODU P5)
When outdoor pipe temperature is more than 65°C, the unit will stop, and unit runs again when outdoor pipe
temperature less than 52°C.
Hi
i
gh temperature protecti
i
on of
condenser
No
Check the
connecti
i
on
between
temperature
sensor and PCB
.
.
No
Yes
Check whet
t
her t
t
he
condenser
t
t
emperat
t
ure i
i
s Hi
i
gher
t
t
han
65°C
Check whet
t
her t
t
he
resi
i
st
t
ance of
f
condenser t
t
emp.
.
sensor i
i
s normal
l
refer to the
Appendi
i
x
1
No
Yes
Check whet
t
her t
t
he
out
t
door ambi
i
ent
t
t
t
emperat
t
ure i
i
s hi
i
gher
t
t
han 50
℃
Yes
No
Check i
i
f the outdoor
uni
i
t
venti
i
l
l
ati
i
on i
i
s good
No
Yes
Check i
i
f the outdoor
fan runs
properl
l
y
No
Yes
Check whet
t
her
t
t
he heat
t
exchanger i
i
s di
i
rt
t
y
Yes
Yes
Make tthe outtdoor
uniitt ventilate well
No
Cl
l
ean t
t
he heat
t
exchanger
pl
l
ease refer to the sol
l
uti
i
on of fan
speed has been out of control
l
mal
l
functi
i
on .
.
Fi
i
nd out the cause
and
have i
i
t sol
l
ved.
.
Make tthe outtdoor uniitt ventilate
well
Stop the uni
i
t
Repl
l
ace the temperature
sensor
Correct the connecti
i
on
No
Check whet
t
her t
t
he
ref
f
ri
i
gerant
t
syst
t
em i
i
s ok
Refri
i
gerant i
i
s not enough add
the refri
i
gerant
