FILE NO. SVM-10020

 

 

 

 

 

 

 

Block distinction

 

Operation of diagnosis function

 

 

 

 

 

 

 

 

 

 

 

Check

 

Check

 

Air

Display

 

Action and Judgment

Block

Cause of operation

conditioner

 

code

code

flashing error

 

 

 

 

status

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Compressor does not rotate.

All OFF

Flashes after

1.

Remove connecting lead wire of the

 

 

 

Because of missed wiring,

 

error is detected

 

compressor, and operate again.

 

 

 

missed phase or shortage.

 

4 times*.

2.

If outdoor fan does not operate or

 

 

 

 

 

 

 

operation but stop after some period,

 

 

 

 

 

 

 

replace the inverter P.C. board.

 

 

 

 

 

 

3.

If outdoor fan operates normally,

 

 

 

 

 

 

 

measure 3-Phase output of inverter

 

 

 

 

 

 

 

P.C. board (150-270VAC) at the

 

 

 

 

 

 

 

connecting lead wire of compressor.

 

 

 

 

 

 

4.

If 3-Phase output is abnormal, replace

 

 

 

 

 

 

 

inverter P.C.Board.

 

 

 

 

 

 

5.

If 3-Phase output is normal, measure

 

 

 

 

 

 

 

resistance of compressor winding.

 

 

 

 

 

 

6.

If winding is shortage, replace the

 

 

 

 

 

 

 

compressor.

 

 

 

 

 

 

 

 

 

 

 

Discharge temperature

All OFF

Flashes after

1.

Check sensors TD.

 

 

 

exceeded 117oC.

 

error is detected

2.

Check refrigerant amount.

 

 

 

 

 

4 times*.

3.

Check P.M.V. by measure the

 

 

 

 

 

 

 

resistance of the coil and confirm its

 

 

 

 

 

 

 

operation (sound of initial

 

 

 

 

 

 

 

operation, etc.)

 

 

 

 

 

 

4.

Observe any possibility cause which

 

 

 

 

 

 

 

may affect high temperature of

 

 

 

 

 

 

 

compressor.

 

 

 

 

 

 

 

 

 

 

 

Compressor is high current

All OFF

Flashes after

1.

Check installation conditions such as

 

 

 

though operation Hz is

 

error is detected

 

packed valve opening, refrigerant

 

 

 

decreased to minimum limit.

 

4 times*.

 

amount and power supply (rate +10%,

 

 

 

Installation problem.

 

 

 

both of operation and non operation

 

 

 

Instantaneous power

 

 

 

condition).

 

 

 

failure.

 

 

2.

Check P.M.V. by measure the

 

 

 

Refrigeration cycle

 

 

 

resistance of the coil and confirm its

 

 

 

problem.

 

 

 

operation (sound of initial

 

 

 

Compressor break down.

 

 

 

operation, etc.)

 

 

 

 

 

 

3.

Observe any possibility cause which

 

 

 

 

 

 

 

may affect high current of compressor.

 

 

 

 

 

 

4.

If 1, 2 and 3 are normal, replace

 

 

 

 

 

 

 

compressor.

 

 

 

 

 

 

 

 

* 4 times ; When first error is detected, error is count as 1 time, then once operation is stop and re-started.

After re-starting operation within 6 minutes, if same error is detected, error count is add (count become 2 times) When error count comes 4 times, record error to check code. But after re-starting operation, if no error is detected and air conditioner can operate more than 6 minutes, error count is cleared.

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