Samsung AM080*XV Series, Service Manual

Page: 169 / 277

T roub l eshooting
Sa m sung El ectronics 4-49
4-3-31 : Comp. Down due to High Pressure Protection Control
1 .
Cause of prob l e m
Is the S - net
esti m ated v a l ue and theManifo l d
G auge v a l ue in range ?
Are the Indoor Unit
and Outdoor Unit EE V nor m a lly
operating ?
Are there an y b l oc k age inside
the pipe ? ( fi l ter etc. )
Chec k the refrigerant a m ount.
Are the Outdoor Fan
operating nor m a lly for the coo l ing
and the Indoor Fan operating nor m a lly
for the heating ?
Auto T ria l Operation
Open the Ser v ice Va lv e
R ep l ace H igh P ressure sensor
Chec k the re l e v ant EE V
P ipe inspection
R ep l ace re l e v ant co m ponent
(m otor or fan )
Y es
Y es
Y es
No
Y es
Are a ll ser v ice v a lv es open ?
Connect S - net and Manifo l d G auge.
( essentia l re q uire m ent )
No
No
No
Y es
No
Outdoor unit
disp l a y
( Air Coo l ed )
Indoorunit
disp l a y
Duct , Cassette (1/ 2 W a y), Conso l e , Ce l ing Cassette (4/ Mini 4 W a y) W a ll-m ounted ( NeoForte )
Operation Defrost T i m er Fan Fi l ter / M P I Operation Defrost T i m er Fi l ter Operation T i m er T urbo
× × ◑ ◑ ◑ × ◑ ◑ ◑ ● ◑ ◑
※ ● : ON ◑ : F l ash ×: OFF
J udg m ent
Method
• Va l ue of the high pressure sensor is detected at 4 0 k g / c m² or m ore
Cause of
prob l e m
<Cooling Operation>
∙ Outdoor unit fan m otor prob l e m ( constrained , defecti v e )
∙ Outdoor heat e x changer is conta m inated.
∙ Ser v ice v a lv e l oc k ed / Fi ll refrigerant
<Heating Operation>
∙ Ser v ice v a lv e l oc k ed /Ex cessi v e refrigerant