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83
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Check code
Main remote
controller
P13
P15
P17
P19
P20
Outdoor 7-segment display
Check code
P13
P15
P17
P19
P20
Sub-code
—
01: TS condition
02: TD condition
—
Detected outdoor unit
No.
—
Detected
position
I/F
I/F
I/F
I/F
I/F
I/F
Check code name
Outdoor liquid back
detection error
Gas leak detection
(TS1 condition)
Gas leak detection
(TD condition)
Discharge temp TD2 error
4-way valve operation error
High-pressure protective
operation
Status
All stop
All stop
All stop
All stop
All stop
All stop
Error detection condition
<In cooling>
While the system is operating in COOL mode,
a high pressure value was detected in follower
unit in which compressor did not operate.
<In heating>
While the system is operating in HEAT mode,
outdoor PMV of which opening degree was
100p or less for a certain time.
Suction temp exceeded the judgment standard
temp for 10 minutes or more.
<TS error judgment standard temperature>
In cooling operation: 60°C or higher
In heating operation: 40°C or higher
Discharge temperature TD1 or TD2 was
continuously 108°C or higher for 10 minutes.
Discharge temperature (TD2) exceeded 115°C.
When abnormal refrigerating cycle data was
detected in heating
Pd sensor detected 3.6MPa or more.
Check item (position)
• Check full close operation of outdoor PMV (1, 2).
• Check Pd and Ps sensor error.
• Check clogging of SV2 circuit.
• Check clogging of balance pipe.
• Check clogging of SV3B circuit.
• Check outdoor P.C. board (I/F) error.
• Check capillary clogging of oil return circuit from oil separator.
• Check leakage of check valve of the main discharge pipe.
• Check refrigerant shortage.
• Check full open of outdoor service valves (gas side, liquid side).
• Check outdoor PMV clogging (PMV1, 2).
• Check characteristics of TS1 sensor resistance value.
• Check leakage of SV4 circuit.
• Check refrigerant shortage.
• Check outdoor PMV clogging (PMV1, 2).
• Check characteristics of TD1, TD2 sensor resistance value.
• Check indoor air filter clogging.
• Check pipe clogging.
• Check SV4 circuit (Valve leakage, misinstallation)
• Check full opening of outdoor service valves
(gas side, liquid side).
• Check clogging of outdoor PMV (PMV1, 2).
• Check characteristics of TD2 sensor resistance value.
• Check leakage of SV42 circuit.
• Check SV4 circuit.
(Miscabling and misinstallation of SV41 and SV42)
• Check coil error and connector connection of 4-way valve.
• Check characteristics of TS1/TE1 sensor resistance value.
• Check characteristics of Pd, Ps pressure sensor output voltage.
• Check misconnection of TE1 and TL sensors.
• Check Pd pressure sensor error.
• Check full opening of service valves (Gas side, Liquid side).
• Check outdoor fan error.
• Check outdoor fan motor error.
• Check clogging of outdoor PMV. (PMV1,2)
• Check clogging of indoor/outdoor heat exchangers.
• Check air short-circuiting in outdoor unit.
• Check clogging of SV2 circuit.
• Check outdoor P.C. board (I/F) error.
• Check indoor fan system error. (Cause of air volume decrease)
• Check valve opening of indoor PMV.
• Check miscabling of communication line between indoor and
outdoor.
• Check operation error of check valve of discharge pipe.
• Check circuit of gas balance SV4 valve.
• Check refrigerant overcharge.