Toshiba RAS-B05J2KVG-E Service Manual page 85

Block distinction
Check
Block
code
The others
(including
compressor)
Operation of diagnosis function
Check
Cause of operation
code
Compressor does not rotate.
Because of missed wiring,
missed phase or shortage.
Discharge temperature
o
exceeded 117 C.
Compressor is high current
though operation Hz is
decreased to minimum limit.
Installation problem.
Instantaneous power
failure.
Refrigeration cycle
problem.
Compressor break down.
Compressor failure (High
current).operation, etc.)
Air
Display
conditioner
flashing error
status
All OFF Flashes after
error is detected
8 times*.
All OFF Flashes after
error is detected
4 times*.
All OFF Flashes after
error is detected
8 times*.
- 85 -
FILE NO. SVM-19001
Action and Judgment
1. Remove connecting lead wire of the
compressor, and operate again.
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.
1. Check sensors TD.
2. Check refrigerant amount.
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.
1. Check installation conditions such as
packed valve opening, refrigerant
amount and power supply (rate +10%,
both of operation and non operation
condition).
2. Check P.M.V. by measure the
resistance of the coil and confirm its
operation (sound of initial
operation, etc.)
3. Observe any possibility cause which
may affect high current of compressor.
4. If 1, 2 and 3 are normal, replace
compressor.