Sanyo CHX06052 - Manual (Page 162)

3-4
Trouble Diagnosis
2. Outdoor Unit Control pCB
v
The number of times that LED 1 and 2 blink on the outdoor unit control PCB can be used to check the alarm displa y
(Refer to
“
Checking the LED 1 and 2 Alarm Display on the Outdoor Unit Control PCB
”
.)
Cause
E06
E12
E15
E16
E20
E24
E25
E29
E30
F04
F06
F07
F08
F12
F16
F17
F31
H03
H06
H31
L05
L06
L10
L17
P03
P14
P16
P22
P26
P29
Remote controller
display
Trouble receiving the signal from the indoor unit at the outdoor unit
Automatic address setting start-prohibit
Automatic address setting alarm (too few units)
Automatic address setting alarm (too many units)
No indoor units when automatic address setting was started
Trouble receiving the signal from the outdoor unit at the relay control unit
Trouble with the outdoor unit address setting
Trouble receiving the signal from the relay control unit at the outdoor unit
Trouble with sending the outdoor unit serial signal
Compressor 1
–
Discharge temperature sensor trouble
Outdoor unit heat exchanger 1
–
Gas (inlet) temperature sensor trouble
Outdoor unit heat exchanger 1
–
Liquid (outlet) temperature sensor trouble
Outside air temperature sensor trouble
Compressor inlet temperature sensor trouble
High-pressure sensor trouble
Low-pressure sensor trouble
Outdoor unit non-volatile memory (EEPROM) trouble
Compressor 1
–
CT sensor disconnected or short circuit
Low-pressure-side pressure too low
Compressor HIC alarm (Also check the description of alarm P29.)
Duplicated indoor unit priority (priority indoor unit)
Duplicated indoor unit priority (non-priority indoor unit) and outdoor unit
Outdoor unit capacity not set.
Outdoor unit type mismatch
Compressor 1
–
Abnormal discharge temperature
O
2
sensor activated.
DCCT or ACCT overcurrent at less than 80 Hz
Outdoor unit fan trouble (IPM damage, overcurrent, inverter trouble, DC fan lock, Hall IC missing
phase)
DCCT or ACCT overcurrent at 80 Hz or higher
Start trouble (CD compressor start trouble) caused by a compressor wiring missing phase or
DCCT trouble
(DISCH1)
(EXL1)
(EXG1)
(AIR TEMP)
(HPS)
(LPS)
(SCT(Suction temperature))
MiniECO-i.indb 4 2007/06/20 16:31:24