How To Check Simple The Main Parts - Toshiba RAS-18J2KVSG-E Service Manual

11-6. How to Check Simple the Main Parts

<Check procedure>
NO
Is connector of coil connected to inverter?
Is positioning sound of valve (sound hitting to stopper) heard
from valve when the air conditioner starts the operation after turning off power
Are temp. sensors of indoor/outdoor units correctly set to the holder?
NOTE :
The temperature sensors include indoor heat exchanger sensor (TC), outdoor
heat exchanger temp. sensor (TE), outdoor suction temp. sensor (TS) and
outdoor sensor (TO).
* TE : (For Heating model)
TS : (For P.M.V. used model).
Gas amount check and valve clogging check
Remove TC sensor connector from the P.C. board in indoor unit.
(Remove connector from the P.C. board.)
Operate the air conditioner in COOL mode by TEMP button
("Beep" sound is heard if keeping pushed for 10 seconds.).
The operation enters temporary operation mode which fixes opening degree of compressor speed.
If there is condensation at outlet (1/4 inch=Ø6.35mm valve side),
the valve is clogged. (If there is no P.M.V. --> Skip this step)
Check the operating pressure from service port, and add gas if pressure is low.
1C
Gas leakage,
disconnection of TS/TC
sensors (Check code 02, 1C)
Does this model
have P.M.V. or not?
YES
Valve drive check
Is coil of the pulse motor valve
(P.M.V.) correctly set?
YES
YES
of the air conditioner once?
YES
YES
Check condensation at outlet of P.M.V.
NO
1E
Discharge temp. error,
gas leakage
(Check code 03, 1E)
NO
NO
NO
NO
YES
- 106 -
Set it correctly.
Set it correctly.
Replace coil valve.
Set it correctly.
Replace valve.
Add gas.