13-1
TROUBLESHOOTING
SM FBFRPM 1-A.0 GB
13. TROUBLESHOOTING
ELECTRICAL & CONTROL TROUBLE
S
HOOTING
ATTENTION : check for broken or loose c
a
ble lugs first.
NO
SYMPTON
PROBABLE CAUSE
CORRECTIVE ACTION
1.
The power supply
indic
a
tor (red led)
doesn’t light up.
There is no correct volt
a
ge
between the line
a
nd
neutr
a
l termin
a
ls on m
a
in
P.C.B.
-If the volt
a
ge is low rep
a
ir power supply.
-If there is no volt
a
ge rep
a
ir gener
a
l wiring.
-If there is correct volt
a
ge repl
a
ce m
a
in or
displ
a
y P.C.B’
S
2
.
The oper
a
ting
indic
a
tor (green led)
does not light up.
The remote control
b
a
tteries
a
re disch
a
rged
-Repl
a
ce b
a
tteries of the remote control
3. The
oper
a
ting
indic
a
tor (green led)
does not light up when
st
a
rting from unit..
Check m
a
in P.C.B
a
nd
displ
a
y P.C.B.
-Repl
a
ce P.C.B if necess
a
ry.
4.
The indoor f
a
n does
not function correctly.
Check the volt
a
ge between
indoor f
a
n termin
a
ls on the
m
a
in P.C.B
- If there is volt
a
ge repl
a
ce c
a
p
a
citor or
motor.
5.
The outdoor f
a
n does
not function correctly.
Check the volt
a
ge between
indoor f
a
n termin
a
ls on the
m
a
in P.C.B.
There is volt
a
ge between
outdoor f
a
n termin
a
ls on
the outdoor unit.
There is no volt
a
ge
between outdoor f
a
n
termin
a
ls on the outdoor
unit.
- If there is no volt
a
ge repl
a
ce m
a
in P.C.B
- Repl
a
ce c
a
p
a
citor or motor.
- Check
a
nd rep
a
ir electric
a
l wiring between
indoor
a
nd outdoor units.
6
.
The compressor does
not st
a
rt up.
Check volt
a
ge on
compressor termin
a
ls on
the outdoor unit. (with
a
mpmeter)
Check if there is correct
volt
a
ge between
compressor termin
a
ls on
the outdoor unit.
-If no volt
a
ge repl
a
ce m
a
in P.C.B.
- If low volt
a
ge rep
a
ir power supply.
-If the volt
a
ge corrrect repl
a
ce c
a
p
a
citor or
compressor.
-If there is no volt
a
ge rep
a
ir electric
a
l wiring
between indoor
a
nd outdoor units.
7. The
refriger
a
tion
system does not
function correctly.
Check for le
a
ks or
restrictions, with
a
mpmeter, pressure gu
a
ge
or surf
a
ce thermometer.
- Rep
a
ir refriger
a
tion system
a
nd ch
a
rge
refriger
a
nt if necess
a
ry.
8.
No cooling or he
a
ting
only indoor f
a
n works.
Outdoor f
a
n motor f
a
ulty or
other f
a
ult c
a
used,
compresssor overlo
a
d
protection cut out.
-Repl
a
ce P.C.B.
- Outdoor f
a
n blocked remove obstructions.
Summary of Contents for YCF055
Page 45: ...8 2 WIRING DIAGRAMS SM FBFRPM 1 A 0 GB 8 3 Indoor Units YDF030 8 4 Outdoor Unit GCN 30NRCT...
Page 46: ...8 3 WIRING DIAGRAMS SM FBFRPM 1 A 0 GB 8 5 Outdoor Unit GCN 37NRC 8 6 Outdoor Unit GCN 37NRCT...
Page 47: ...8 4 WIRING DIAGRAMS SM FBFRPM 1 A 0 GB 8 7 Outdoor Unit YDF047 8 8 Outdoor Unit YCF055...
Page 50: ...10 2 REFRIGERATION DIAGRAMS SM FBFRPM 1 A 0 GB 10 1 2 FBF045 FBF060...
Page 92: ...14 4 EXPLODED VIEWS AND SPARE PARTS LISTS SM FBFRPM 1 A 0 GB 14 4 Indoor Unit FBF046 FBF060...
Page 109: ...15 3 OPTIONAL ACCESSORIES SM FBFRPM 1 A 0 GB 15 3 RCW RCW2 Wiring Connections as Shown on Kit...
