1
3
9
Check code
[P15] / [AE]
(Current code / AI-NET)
Check code name
Gas leak detection
TD condition (Sub-code: 02)
Cause of operation
1. Outdoor unit service valve closed
2. Outdoor PMV error
3. TD sensor error
4. SV4 circuit error
5. Refrigerant shortage, clogging refrigerant circuit
Coil, valve body, coil installation,
disconnection of cable, etc.
Open service valves fully.
Repair outdoor PMV.
Replace TD1 or TD2 sensor.
Repair SV41 and SV42 circuits.
Correct cabling.
Are service valves of gas
and liquid sides fully opened?
Are characteristics of
TD1, TD2 sensor resistance normal?
Is SV4 valve circuit normal?
(Coil misinstallation, valve leakage)
Are not indoor units in different
refrigerant circuit connected?
Refrigerant shortage,
clogging, pipe breakage.
* Connectors CN300, 301 White
* Refer to outdoor temp sensor
characteristics-4
Check with miscabling check
function of outdoor unit.
(Check there is no clogging and pipe breakage, and then recharge refrigerant.)
Is outdoor PMV normal?
1. Connector connection
2. Cabling
3. Coil
4. Valve body
5. Outdoor I/F P.C. board
( )
( )
YES
NO
YES
YES
YES
YES
NO
NO
NO
NO
FILE NO. SVM-1
40
77
