Daikin LX10F11B3 - Page 80

Symptom Cause Checkpoint Remedy
Ⅴ
Control is unstable (during chilled in range control operation).
The control
temperature is
unstable.
Faulty low
pressure
transducer LPT
Replace the LPT.
Correct
installation
of DCHS
Improper installation
of EOS, EIS
and SGS?
Is the difference
in pressure between the pressure
gauge and LPT 30 kPa
or more?
Is the DCHS 1, 2
or heat insulation installed
improperly ?
Installation check of RS and SS
Repair
Installation
of EOS,EIS
and SGS
YES
YES
YES
NO
NO
NO
Operating temperature
is fluctuating.
Faulty discharge
pipe temperature
sensor DCHS 1, 2
Pipe temperature
sensor fault
（EOS,EIS,SGS）
Air temperature
sensor fault （RS,SS）
Temperature
continues to
decrease.
Stop of evaporator
fan
Condenser fan stop
Check the fan
motor.
Temperature continues
to decrease.
Check the SS and RS.
YES
NO
Temperature
continues to
increase.
・ Solenoid valve
HSV or RSV
internal leak
Excessive frost on
the evaporator
YES
Is outlet side
pipe of HSV or
DSV hot?
Check operation of the
HSV, RSV.
⇒ Replace the HSV,
RSV.
NO
Temperature continues
to increase.
Manual defrost
2-51
02章45-54LX10F11B3TR16-02En.indd2-5102章45-54LX10F11B3TR16-02En.indd2-51 2016/02/029:37:432016/02/029:37:43
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