4
-31DESCRIPTION OF OPERATING SYSTEM
SELF-DIAGNOSIS FUCTION
DIAGNOSTIC METHOD
If there is problem in the heater/air-
conditioner, inspect it as below self-di-
agnostic method.
1. Turn ON the ignition switch.
2. Press the vent switch more than 4
times in 2 seconds with the air in-
take switch pressed.
3. Check that the switch indicator
flashes 5 times.
4. If the system is return to the previ-
ous state of self-diagnosis, it is
normal, if not, inspects items of self-
diagnosis.
5. When the power switch is pressed
once, the system is returned to the
previous state of self-diagnosis, and
when pressed twice, the system
stops.
ERROR MODE DISPLAY
1. If there’ s faulty parts, the corre-
sponding indicator is flashed twice
at an interval of 0.5 seconds, the
other indicators are turned
2. The corresponding indicator display
of faulty parts is as below.
Faulty parts
Indicator
Mode actuator-1
Mode actuator-2
Temperature actuator
Water valve actuator
Intake air actuator
A/C temperature sensor
The system is stopped during
self-diagnosis function.
NOTE
!!
!!
!
CAUTION
A/C uses new refrigerant HFC-
134a. So in case of using the
used refrigerant CFC-12
wrongly, it can cause malfunc-
tion such as compressor
burning. Be sure that the refrig-
erant is correct prior to charg-
ing refrigerant.
If water comes in the A/C cycle,
it can cause cooling malfunc-
tion and faulty cycle parts.
If the compressor oil quantity is
insufficient, lubrication is bad
and the compressor is burnt.
Also if oil quantity is excessive,
cooling malfunction happens.
So after cases as below, replace
or add compressor oil as well
as refrigerant as much as the
specified capacity.
- Refrigerant or oil leaks from
the cycle
- Serious refrigerant leaks from
the cycle
- After replacing the cycle parts
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