118
Check code
[P15] / [AE]
(Current code / AI-NET)
Check code name
Gas leak detection
TS condition (Sub-code: 01)
Cause of operation
1. Outdoor unit service valve closed
2. Outdoor PMV error
3. TS1 sensor error
4. Refrigerant shortage, clogging refrigerant circuit
5. 4-way valve error
6. SV4 circuit error
( )
Open service valves fully.
Repair outdoor PMV.
Replace TS1 sensor.
Check and replace 4-way valve and coil.
Repair SV41 and SV42 circuits.
Are service valves at gas and
liquid side fully opened?
Are characteristics of
TS1 sensor resistance normal?
Is there no leakage of
SV41 and 42 valve circuits?
Refrigerant shortage,
clogging, pipe breakage.
* Connectors CN300, 301 White
* Refer to outdoor temp sensor
characteristics-2
(Check there is no clogging and pipe breakage, and then recharge refrigerant.)
Coil, valve body,
disconnection of cable, etc
Is outdoor PMV normal?
1. Connector connection
2. Cabling
3. Coil
4. Valve body
5. Outdoor I/F P.C. board
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
Does not discharge
refrigerant gas bypass to suction side
through 4-way valve?
