55
No.
Caused by (outdoor unit)
LED lamps
Meaning
2 3 4 5
— Normal
●
● ●
● ●
● ●
●
Normal operation
— Defective in IC chip (E
2
PROM)
●
● ●
● ●
●
●
Cannot read IC chip data or missing IC chip on outside
PCB
— Defective Gas Valves
●
● ●
●
●
●
●
Detects abnormality in Gas Valve Circuit at initial
checking
A
Detective Thermistor 1
●
● ●
●
● ●
Open or Short of Thermistor 1
B
Detective Thermistor 2
●
●
●
●
● ●
●
Open or Short of Thermistor 2
C
Limit switch
●
●
●
●
●
●
Thermal fuse or Bimetal Thermostat tripped
D
Flame current circuit
●
●
● ●
●
●
Defective abnormal in Flame Current Circuit
E
Lighting failure
●
●
● ● ●
Couldn’t establish flame
F
Lost flame
●
●
● ●
● ●
●
Flame Sensor Circuit detects lost flame and could not
establish the flame
G
Incorrect combustion motor speed
●
●
● ●
●
●
Incorrect combustion motor speed
H
Over-time period in retry
●
●
●
●
●
●
Thermistor 1 or Thermistor 2 temperature did not go
down in set period
I
Over number of times in retry
●
●
●
● ●
Combustion stopped by Thermistor 1 or Thermistor 2
more than set number
J
Bypass Valve (V2) not open
● ●
●
● ●
●
Bypass Valve failure or drop-out of Thermistor 2
— Reversing Valve not working
● ●
●
●
●
Reversing Valve failure, drop-out of Thermistor 2, or
shortage of refrigerant
12-3-2. Thermistor Abnormality (Indoor Unit Only)
Check open / short circuit at the coil thermistor and room thermistor (between 1 and 2 of the lamp 8P) on the
PCB of the indoor unit (but only when the room temperature is 14 to 113°F).
12-3-3. Protective Circuit of Outdoor (Burner) Unit Operated
Check the following according to the failure display. Check items listed in 12-6. Heating Operation Not Possible.
12-3-4. CT Detection (Refer to 12-3-9 and 12-3-10.)
(1) Compressor abnormality
(2) Compressor over-load relay engaged
Note: Refer to 12-8. Failure Display on Outdoor Unit and Correction Method.
●
●
light off
●
light on
Содержание CG1411
Страница 73: ...1 INSTRUCTION MANUAL KGS 1411 CG1411 APPENDIX ...
