Daikin LX10F11B3 Service Manual page 58

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012 E202
Alarm Automatic pumpdown failure
Logic HPT≧2300kPa or DCHS1 or DCHS2≧120℃ during automatic pump-down.
Possible
Refrigerant overcharged
Causes
Trouble
Recover refrigerant and charge with specified amount of refrigerant shown on unit name plate.
Shooting
Controller
E202 Alarm display only
Action
013 E203
Alarm SS≦SP-3.0℃ & 5 minutes elapsed during modulated control in chilled mode.
Logic (Over cooling prevention)
Possible
Cooling load changes rapidly. (Small heat load)
Causes
Trouble Check for the cause of sudden reduction of the heat load.
Shooting ＊Example 1: Set the ventilation outlet from OPEN to CLOSE.
＊Example 2: The door is opened at the low ambient temperature (＜SP).
Controller
E203 Restart after 3 minutes
Action
014 E207
Alarm Defrost can not be completed within 90 minutes.
Logic (The condition EOS≧10℃ was not satisfied five defrosting times continuously during 90 minute
counting).
Possible ＊Excessive frost on the evaporator coil.
Causes ＊Setting time of defrosting interval is too long.
Trouble 1. Remove rest frost by manual defrost.
Shooting Also, check whether defrost completion condition (EOS≧25℃ & RS ≧15℃ ) are reached
within 90 minutes on the LCD screen (※3 Sensor Information in paragraph 2.3).
＊ In case of defrost is completed by above complete condition, consider as normal.
Monitor unit operation.
＊ In case of defrost does not complete due to not reach to complete condition, there may be
low hot-gas temperature, insufficient hot-gas circulation.
Controller
E207 Alarm display only
Action
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