Zibro S1731, Service Manual

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TROUBLESHOOTING GUIDE
INDICATION LAMP
Micro computer self-diagnose the points of the troubles and inform it by the combination of the status (On, Flush, or
Off) of three lamp indicators on the front panel of the indoor unit.
ALARM
INDICATION TIME
APPEARANCE, PORTION, PARTS
SEEMED WRONG
MOMENTARY STOP OF POWER
(IN CASE OF LIGHTNING)
DROP OF POWER VOLTAGE
check the plug inserted into the outlet and the power supply
emergency operation (display of remote controller is faint or not)
check the electric continuity by tester
check the electric continuity by tester
emergency operation
other than described above
15 sec. later after main power on, if alarm indication appears,
IN PCB (main) should be replaced
METHOD OF CHECK
(press the ON/OFF button of remote controller in case of reset)
POWER
(green)
TIMER
(yellow)
OPERATION
(green)
INDICATION LAMP
OFF OFF OFF
IN, OUT do not work at all
FLASHING OFF OFF
OFF
FLASHING ON ON
ON
ON
FLASHING
ON ON FLASHING
FLASHING ON OFF
alarm indication appears
immediately when press
operation switch
OFF OFF FLASHING
FLASHING OFF FLASHING
IN, OUT don’t work at all,
and after 20 sec., operation
lamp is flashing (2 min. in
case of power on)
normal lamp indication
turn alarm when
something is wrong with
IN, OUT
error of transmission
CT disconnection
OFF FLASHING OFF
FLASHING FLASHING OFF
OFF
or
30 〜 40 min. later after
compressor start, the yellow
lamp is flashing and IN,
OUT stop running
sensor discharge operate
because temperature of
discharge tube beyond
100
°
C, or sensor
discharge is bad quality
protective action against
excessive AC current
detection
FLASHING FLASHING ON
FLASHING ON
FLASHING
once stop running with
power lamp lighting when
something is wrong with
IN, OUT, and start
running again after 6 〜
26 min.
later after that in case of
reoccurrence, alarm
indication appears
protective action against
excessive DC current
detection
or
abnormal revolution of
compressor
in case of heating
operation, a rise of
temperature (above 62
°
C)
of IN heat exchanger or
less quantity of IN blow
FLASHING FLASHING
FLASHING FLASHING
FLASHING ON FLASHING
in case of heating operation,
after a few minutes operation,
all lamps are flashing and
IN, OUT stop running
accident of controller
rise of temperature
(above 100
°
C) of power
module
short or open of sensor,
temperature or incomplete
insertion of connector
IN PCB (MAIN)
OUT PCB (MAIN)
SHORT CYCLE
(INSUFFICIENT AIR CIRCULATION)
UNREASONABLE OPERATION
UNDER OVERLOAD
SENSOR, TEMP. ROOM
SENSOR, TEMP. HEAT EXCHANGER
SENSOR, TEMP. DEFROST
SENSOR, TEMP. OUTDOOR
SENSOR, TEMP. DISCHARGE
FILTER IS CHOKED
SENSOR, TEMP. HEAT EXCHANGER
IN PCB (MAIN)
FAN MOTOR (IN)
UNREASONABLE OPERATION
UNDER OVERLOAD
MOMENTARY STOP OF POWER
(IN CASE OF LIGHTNING)
DROP OF POWER VOLTAGE
OUT PCB (MAIN)
COMPRESSOR LOCKING
POWER SUPPLY
REMOTE CONTROL
IN FUSE(3.15A)
IN TERMINAL BLOCK
PCB (RECEIVER & DISPLAY)
IN PCB (MAIN)
MIS-WIRING
(OUT-IN CONNECTING CABLE)
OR RARE CONTACT
CUTTING OFF CT
CURRENT FUSE . (12A) FUSING
(ON THE OUT PCB (FILTER))
GAS LEAKAGE
VALVE, SERVICE IS CLOSED
PIPE
SENSOR, TEMP. DISCHARGE
check the place of installation (blockage of air inlet & outlet of IN, OUT)
check the excessive gas
check the movement by reoperation
check the power voltage (230V)
UNREASONABLE OPERATION
UNDER OVERLOAD
check the place of installation (blockage of air inlet & outlet of IN, OUT)
check the excessive gas
check by eyes and clean it
check the resistance by tester [see table 2]
check the voltage between blue and yellow in connector [see fig.3]
if it is not AC 110V
〜
230V, IN PCB (main) should be replaced
other than described above
check the movement by reoperation
check the power voltage (230V)
check the place of installation (blockage of air inlet & outlet of
IN, OUT)
If the same alarm lamp will remain lit during operation even after
disconnecting the connector of the lead cable to the compressor,
it implies the defect of the OUT controller assy.
change the OUT PCB (main)
check the wiring connection and rare contact
check the resistance by tester [see table 1]
check the resistance by tester [see table 2]
check the resistance by tester [see table 2]
check the resistance by tester [see table 2]
check the resistance by tester [see table 3]
check the point of leakage (discharge temperature rise in case of
small leakage), measure the pressure of compressor during fixed
operation (emergency and test operation)
check the valve by eyes
check by eyes
check the resistance by tester [see table 3]
check the electric continuity by tester.[see fig. 2]
(if it is no continuity, OUT controller assy should be replaced.)
60 sec. later after start running through remote controller, if alarm
indication appears, OUT controller assy should be replaced
-
-
-
check the drain hose by eyes (it might be folded or choked)
check the IN whether lean or not
not cool down
not warm up
water leakage
louver doesn' t work
※
In this table IN means indoor unit and OUT means outdoor unit.
check the resistance by tester [see fig.5]
check the point of leakage measure the pressure of compressor
during fixed operation (emergency and test operation)
nasty smell
FILTER IS CHOKED
NO USE FOR A LONG TIME
NASTY SMELL
(CIGARETTE, FURNITURE, ETC.)
DRAINAGE
MIS-INSTALLATION
LOUVER MOTOR
GAS LEAKAGE
SENSOR, TEMP. ROOM
SENSOR, TEMP. HEAT EXCHANGER
4-WAY VALVE
SHORT CYCLE
(INSUFFICIENT AIR CIRCULATION)
check by eyes and clean it
use deodorizer
check the resistance by tester [see table 1]
- - - -
-
-
-
- - - -
- - - -
- - - -
check the resistance by tester [see table 2]
FAN MOTOR (IN)
check the voltage between blue and yellow in connector [see fig.3]
if it is AC 110V
〜
230V, IN fan motor should be replaced
check the resistance by tester [see fig.4]
check the blockage of air inlet & outlet of IN, OUT
If the same alarm lamp will remain lit during operation even after replacing
the OUT controller assy, it implies the defect of the compressor.