1-67
(6)
How to make sure of remote controller
Unit
Thermistor
Operation
Function
Short circuit
Broken connection
Cooling
Heating
Cooling
Heating
Cooling
Heating
Indoor unit
Room temperature
thermistor
(1)
(Th
1
)
except for “continuous”
thermal setting.
Cooling will not operate
¡
FM
I
: continuous operation
¡
CM,FM
o
: stopped
Continuous heating operation.
¡
Cannot be turned ON/OFF by thermostat
¡
When FM
I
is on. “AUTO” is continuously Hi
Cooling will operate
¡
Heat exchanger frost preventer begins to operate
¡
Cools alternately for 10 minutes, stopping for 3
minutes.
Heating will not operate normally
¡
CM, FM
o
are ON
¡
FM
I
is OFF
¡
Hot keep lamp illuminated
No effect
Heating will operate.
¡
Unable to defros
(2)
¡
Will not operate for very long when outside air
temperature is low
(5)
Trouble shooting chart for the room temperature thermistor (Th
1
), heat exchanger thermistor (Th
2
) and defrost thermostat (23DH)
Continuous Cooling operation
¡
Cannot be turned ON/OFF by thermostat
¡
When FM
I
is on. “AUTO” is continuously
Hi
Heating will not operate
(CM, FM
o
, FM
I
all stopped)
Heat exchanger
thermistor (Th
2
)
Cooling will not operate.
Heating will not operate
¡
Heating overload protect begins to operate
¡
When FM is on, “AUTO’” is continuously
Hi
¡
CM, FMo are stopped
Notes
(1) When the room temperature thermistor (Th
1
) will not operate normally. Cooling or heating operation may be run continuously by putting the thermostat setting on
“CONTINUOUS”
(2) When switching to the defrost cycle, 23DH opens (broken connection), the machanism resets to heating, and defrosting will not operate.
Defrost thermostat
(23DH)
Outdoor unit
Cooling will not operate (blown breaker)
¡
CM, FM
I
are ON
¡
FM
o
is OFF
Heating will not operate normally
(The defrosting will operate normally, but
23DH reset is not possible. De frosts for 10
minutes)
S
50,56 models
(a)
Press the reset switch of remote controller.
(b)
If the salmost normal if entire display of remote
controller is shown after indication.
Note (1) How to check the remote controller
S
40 model
(a)
Press the reset switch of remote controller.
(b)
If the salmost normal if entire display of remote control-
ler is shown after indication.
(1)
Is remote
controller
normal?
YES
Again pushing
operating switch
Operating the
unit?
NO
Does operating
backup switch
Operating the unit
NO
Replace the
display
Remote controller
defects
Abnormal is not
fount
Is control unit
normal
Is it normal
Remote
controller defects
Operating the unit
NO
NO
YES
YES
CONT HIPOWER ECONO
Summary of Contents for SRC208CENF-L
Page 26: ...Models SRK50A 56A...
Page 40: ...1 40 Model SRK502Z L...
