Troubleshooting
12-13Samsung Electronics
■
:
Oil Valve(Equal Oil Valve) 1 Self Diagnosis(Open or Close Error, Sensor Breakaway or Defect)
1.
Check Method
Outdoor unit display
Indoor unit display (Operation) (Timer) (Fan) (Filter) (Defrost)
1. In case only one outdoor unit is installed, do not judge.
2. When the oil valve (equal oil valve) 1 is broken during more than 2 outdoor unit is connect-
ed and exchange oil or when the temperature sensor for detecting a defect of the equal oil
valve 1 is broken away, the error is displayed.
3. After closing the equal valve 1 before starting equal oil operation and opening the Hot Gas
Bypass, if temperature is raised by over 5°C, the error is displayed.
4. After open the oil valve (equal oil valve) 1 on the oil discharging step during the equal oil
operation and open the Hot Gas Bypass, if temperature is not changed by over 7°C,
the error is displayed.
Causes
Oil valve (equal oil valve) temperature sensor breakaway / oil valve (equal oil valve) 1 defect /
coil defect or terminal contact badness
Is the oil valve 1 temperature
sensor separated?
Insert the sensor correctly.
Yes
No
Is the temperature measuring value proper?
(Using S-net and View Mode)
Replace the temperature sensor
No
Yes
Is the oil service valve opened?
Open the oil service valve.
No
Yes
Is the connector of the valve coil correctly
connected?
Connect to the connector
correctly.
No
Yes
Is the resistance value of the coil proper?
Replace the oil valve (equal oil)
1 body.
Replace the coil.
No
Yes
• When replace the oil valve, never use a
welder to the equal oil piping. Operate
after cutting by the copper pipe cutter.
(It is dangerous for firing because oil is
gathered to the equal oil piping.)
Judgment method
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