Toshiba RAS-18J2AVG-E, Руководство по обслуживанию

Страница: 83 / 137

Block distinction Operation of diagnosis function
Check
code
Block
Check
code
Cause of operation
Air
conditioner
status
Display flashing
error
Outdoor P.C. Current on inverter circuit All OFF Flashes after 1. Remove connecting lead wire of the
board is over limit in short time. error is detected compressor, and operate again.
Inverter P.C. board is
8
times*. 2. If outdoor fan does not operate or
failure, IGBT shortage, etc. operat e but stop after some period,
Compressor current is replace the inverter P.C. board.
higher than limitation, 3. If outdoor fan operates normally,
lock rotor, etc. 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, replace
compressor. (lock rotor, etc.)
Compressor position-detect All OFF Flashes after 1. Remove connecting lead wire of the
circuit error or short-circuit error is detected compressor, and operate again.
between winding of
8
times*. 2. If outdoor fan does not operate or
compressor. operation but stop after some period,
replace the inverter P.C. board.
3. If outdoor fan operates normally,
measure resistance of compressor
winding. If circuit is shortage, replace
the compressor.
Current-detect circuit of All OFF Flashes after Even if trying to operate again, all
inverter P.C. board error. error is detected operations stop, replace inverter
4 times*. P.C. board.
All OFF Flashes after
error is detected
4 times*.
1. Check sensors, TE, TS connection. In
case of sensors and it’s connection is
normal, check the inverter P . C . board
2. Check 4way valve operation/position.
In case TE, TS detected temperature
relationship are different from normal
operation, “18” might be detected.
TE or TS sensor; abnormal.
Out of place, disconnection,
shortage, or misconnection
(TE sensor is connected to TS
connector, TS sensor is
connected to TE sensor
connector)
TE sensor; Outdoor heat
exchanger temperature sensor
TS sensor; Suction pipe
temperature sensor
TD sensor ; Discharge pipe All OFF Flashes after 1. Check sensors TD and connection.
temperature sensor is error is detected 2. In case of the sensor and its
disconnection or shortage. 4 times*. connection is normal, check the
inverter P.C. board.
Outdoor fan failure or its All OFF Flashes after 1. Check the motor, measure winding
drive-circuit on the inverter error is detected resistance, shortage or lock rotor.
P.C. board failure.
8
times*. 2. Check the inverter P.C. board.
TO sensor ; The outdoor Operation Record error 1. Check sensors TO and connection.
temperature sensor is
continues. after detected
2. In case of the sensor and its
disconnection or shortage.
4 times*.
connection is normal, check the
But does not
inverter P.C. board.
flash display.
Action and Judgment
FILE NO. SVM-19001
- 83 -