13-6
TROUBLESHOOTING
SM CKDDCI 2-A.3 GB
No.
SYMPTOM /
PROBLEM
PROBABLE
CAUSE
CORRECTIVE ACTION
19.
Other home
appliances operation
is faulty such as
noise appears in the
television picture,
or the picture is
distorted or static
occurs in the radio
sound
EMC
interference by
the A/C unit
Check for EMC problems (
13.5.20.2
)
20. All others
Specific
problems
of indoor or
outdoor units
Check for any fault code shown on display
board and act accordingly (
13.4
)
13.3
Checking the refrigeration system
Checking system pressures and other thermodynamic measures should be done when system
is in technician Mode where the system operates as in fixed settings. The performance curves
given in this manual are given for unit performance in Technician mode when high indoor fan
speed is selected.
For entering technician mode see
12.6.
13.4
Troubleshooting by Diagnostics Codes
13.4.1
Fault Code for Outdoor Unit
If any fault exists in the system, its fault will be shown according to the following coding method.
The 5 last fault occurred in the system will be stored in the EEPROM.
If no fault exist in the system, no fault code will be displayed during normal operation mode.
STATUS LED is blinking 5 times in 5 seconds, and shut off for the next 5 seconds.
FAULT LED will blink during the same 5 seconds according to the following table
The LED coding method is as follow:
STBY STATUS FAULT
