Toshiba CARRIER RAS-15LKV-UL - Manual (Page 82)

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11-6. Check Code 18 and 1E
<Check procedure>
Gas leakage, disconnection of TS/TC sensors
(Check code 02, 1C)
Discharge temp. error, gas leakage
(Check code 03, 1E)
1C 1E
Set it correctly.
Set it correctly.
Set it correctly.
Replace coil valve.
Replace valve.
Add gas.
Existence of condensation at outlet of PMV
If there is condensation at outlet (1/4 inch = Ø6.35mm valve side), the valve is clogged.
Valve drive check
Is connecter of coil connected to inverter?
Check the operating pressure from service port, and add gas if pressure is low.
Gas amount check and valve clogging check
Is coil of the pulse motor valve
(PMV) correctly set?
Is positioning sound of valve (sound hitting to stopper) heard
from valve when the air conditioner starts the operation
after turning off power of the air conditioner once?
Are temp. sensors of indoor/outdoor units correctly set to the holder?
NOTE :
The temperature sensors which are used to control pulse motor valve
include indoor heat exchanger sensor (TC), outdoor heat exchanger temp.
sensor (TE), outdoor suction temp. sensor (TS) and outdoor sensor (TO).
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.
Check condensation at outlet of PMV, and then check operating pressure from the service port.
NO
NO
NO
NO
YES
YES
YES
YES
FILE NO. SVM-10020