Elektronika SCM60ZD-S Manual page 74

(2) Indication of self diagnosis
Indoor unit
Outdoor unit Wired remote
indicator
indicator control display
RUN TIMER
(LED 5) (optional parts)
light
light
1 time Comes
Stays off
flash on
2 time Comes
Stays off
flash on
4 time Comes
Stays off
flash on
5 time Comes
Stays off
flash on
6 time Comes
Stays off
flash on
7 time Comes
Stays off
flash on
Keeps
1 time
Stays off
flashing
flash
Keeps
2 time
Stays off
flashing
flash
On for 4 sec-
Keep 4 time
onds and off
flashing flash
for 4 seconds
Keep 5 time
Stays off
flashing flash
Comes
1 time
1 time flash
on
flash
Comes
2 time
2 time flash
on
flash
Comes
3 time
3 time flash
on
flash
Comes
5 time
5 time flash
on
flash
Comes
6 time
6 time flash
on
flash
2 time
2 time
7 time flash
flash
flash
74
Description of
trouble
• Broken heat exchanger sensor (1)
Indoor heat exchanger
wire
E6
sensor (1) error
Connector poor connection
•
Disconnected sensor
•
• Broken room temperature sensor
Room temperature
wire
E7
sensor error
• Connector poor connection
• Drain at reverse gradient
Drain abnormality
E9
(STM, SRRM only) • Float switch defective
• Broken heat exchanger sensor (2)
wire
Indoor heat exchange
E6
• Connector poor connection
sensor (2) error
• Disconnected sensor
• Defective fan motor
Indoor fan motor error
E16
Connector poor connection
•
Closed service valve • Closed service valve
Indoor heat exchanger • Heat exchanger sensor (1) is
E6
sensor (1) error disconnected.
• Broken outdoor air temperature
Outdoor air tempera-
E38 sensor wire
ture sensor error
• Poor connector connection
• Broken heat exchanger sensor
Outdoor heat exchan-
wire
E37
ger sensor error
• Poor connector connection
Discharge pipe sensor •
Broken discharge pipe sensor wire
E39
error •
Connector poor connection
Comp. suction sensor •
Broken comp. suction sensor wire
E53
error
•
Poor connector connection
• Compressor locking
Current cut
• Open phase on compressor output
E42
• Shortcircuit on power transistor
• Defective power transistor.
Trouble of outdoor
E59 Broken compressor wire
•
unit
Compressor blockage
•
• Overload operation
E58 Current safe stop
• Overcharge
Gas shortage
•
E36
Over heat of compressor
• Defective discharge pipe sensor
• Defective power supply
Error of signal trans-
• Broken signal wire
E5
mission • Defective indoor/outdoor unit
circuit boads.
• Defective compressor
E60 Compressor lock
• Defective outdoor PCB
Error of wired • Broken wired remote control wire
E1
•
remote control wiring Defective indoor unit boards
Cause Conditions of flashing
When heat exchanger sensor (1) temperature of
–20 °C or under continued for more than 15
seconds while operation is stopped. (This is not
displayed during operation.)
When room temperature sensor temperature of
–20 °C or under continued for more than 15
seconds while operation is stopped. (This is not
displayed during operation.)
Float switch motion
When heat exchanger sensor (2) temperature of -
20°C or under continued for more than 15
seconds while operation is stopped. (This is not
displayed during operation.)
When air conditioner is operating and indoor fan
motor is turned ON, indoor fan motor speed of
300 rpm or under continued for more than 30
seconds. (Air conditioner stops.)
After cooling starts, when the temperature
difference at the indoor heat exchanger sensor (1)
after 13 minutes and after 16 minutes is greater
than –2ºC, operation is stopped.
When outdoor air temperature sensor temperature
of –20 °C or under continued for more than 10
seconds while operation is stopped. (This is not
displayed during operation.)
When heat exchanger sensor temperature of –20
°C or under continued for more than 10 seconds
while operation is stopped. (This is not displayed
during operation.)
After the decision speed has been 0 rps or more for
9 continuous minutes and the discharge pipe sensor
has sent a 10 second or more broken wire signal.
(Compressor is stopped.)
When comp. suction sensor temperature of
-20°C or under continued for more than 10
seconds while operation is stopped.
When converter output current which exceeds
setting value is detected. (Compressor stops.)
When an error with the outdoor unit causes an
error stop, or when the input current is measured
at 1 A or less for 3 continuous minutes or more.
(Compressor is stopped.)
When the decision speed is 30 rps or less and the
current save has operated. (Compressor stops)
When discharge pipe sensor value exceeds setting
value.
(Compressor Stops.)
If serial signal cannot be sent or received for 1
minute and 55 seconds continuously.
When the motor for the compressor does not turn
1/12 revolution 0.044 second after it has been started.
The wired remote control wire Y is open. The wired remote control
wires X and Y are reversely connected. Noise is penetrating the
wired remote control lines. The wired remote control or indoor
control PCB is faulty. (The communications circuit is faulty.)