OK
OK
1. Connector connection failure 2. Thermistor failure 3. Coil failure 4. 4-way valve failure
5. Main PCB failure
Test 1 : Check connection of Connector
Check if connector is removed.
Check erroneous connection.
Check if thermistor cable is open.
>> Upon correcting the removed connector or miss-wiring, reset the power.
Test 3 : Check the solenoid coil and 4-way valve
[ Solenoid coil ]
Remove CN6 from PCB and check the resistance value of coil.
Resistance value is about 1725+ 172.5 (68°F (20°C))
>> If it is Open or abnormal resistance value, replace Solenoid Coil.
[ 4-way valve ]
Check each piping temperature,
and the location of the valve by the temperature difference.
>> If the value location is not proper, replace 4-way valve.
OK
Test 4 : Replace Main PCB
If Test 1- 3 do not improve the symptom, replace Main PCB.
Test 2 : Check thermistor of Indoor unit
Isn’t it fallen off the holder?
Is there a cable pinched?
>> Check characteristics of thermistor, (Refer to Trouble shooting 11,12),
If defective, replace the thermistor.
Trouble shooting 30
OUTDOOR UNIT Error Method:
4-Way Valve Error
Indoor unit controller PCB circuit
Heat Ex. temperature thermistor
Room temperature thermistor
4-way valve
When the indoor heat exchanger temperature is compared with the
room temperature, and either following condition is decided
continuously two times, the compressor stops.
Cooling or Dry operation.
[Indoor heat exchanger temp.] - [Room temp.] > 50°F (10°C)
Heating operation
If the same operation is repeated 5 times, the compressor stops permanently.
[Indoor heat exchanger temp.] - [Room temp.] < -50°F (-10°C)
Detective Actuators: Detective details:
Indicate of Display:
Forecast of Cause:
Outdoor unit :
POWER
MODE
ERROR
2
9
(L1) (L2) (L6)(L5)(L4)(L3)
9
PUMP
DOWN
LOW
NOISE
PEAK
CUT
-
02-33
Indoor Unit :
Operation lamp: 9 times Flash,
Timer lamp : 9 times Flash
ERROR CODE : [E : 99]
n
: n times blinking
: Light ON: Light OFF
To Next Page
Loading...
