100
Check code
Main
remote
controller
H14
H16
L03
L04
Outdoor 7-segment display
Check code
Auxiliary code
H14
—
H16
01: TK1 oil circuit system error
02: TK2 oil circuit system error
03: TK3 oil circuit system error
04: TK4 oil circuit system error
—
—
L04
—
Detected
position
I/F
I/F
Indoor
I/F
Check code name
Compressor 2 case
thermo operation
Oil level detective
circuit system error
MG-SW error
OCR operation
Duplicated indoor
center units
Duplicated outdoor
line address
Status
All stop
All stop
Corresponding
unit only stops.
All stop
Error detection condition
Compressor 2 case thermostat
operated.
Temperature change of TK1 could
not be detected though compres-
sor 1 started the operation.
Temperature change of TK2 could
not be detected though compressor
2 started the operation.
Temperature change of TK3 could
not be detected though compressor
started the operation.
Temperature change of TK4 could
not be detected though compressor
started the operation, or the
difference from other TK sensor
changed for a constant time only
within the specified range.
There are multiple center units in a
group.
Line address setup is duplicated
against the outdoor unit in different
refrigerant pipe system.
Check item (position)
• Check compressor 2 case thermo circuit. (Connector, cable, P.C. board)
• Check full opening of service valve. (Gas and liquid side)
• Check outdoor PMV clogging. (PMV1, 2)
• Check SV42 valve leak.
• Check miscabling/misinstallation of SV41 and SV42.
• Check valve opening of indoor PMV.
• Check 4-way valve error.
• Check refrigerant shortage.
• Check TK1 sensor coming-off.
• Check characteristics of TK1 sensor resistance value.
• Check TK1, TK2, TK3, and TK4 misconnection.
• Check operation error of SV3E valve.
• Check capillary clogging of oil-equation circuit and operation error of stop valve.
• Check refrigerant stagnation in compressor.
• Check MG-SW or OCR.
• Check TK2 sensor coming-off.
• Check characteristics of TK2 sensor resistance value.
• Check TK1, TK2, TK3, and TK4 misconnection.
• Check SV3E valve operation.
• Check capillary clogging of oil equalization circuit and check stop valve operation.
• Check refrigerant stagnation in compressor shell.
• Check MG-SW or OCR.
• Check TK3 sensor coming-off.
• Check characteristics of TK3 sensor resistance value.
• Check TK1, TK2, TK3, and TK4 misconnection.
• Check SV3E valve operation.
• Check capillary clogging of oil-equalization circuit and check valve operation.
• Check refrigerant stagnation in compressor shell.
• Check MG-SW or OCR.
• Check TK4 sensor coming-off.
• Check characteristics of TK4 sensor resistance value.
• Check TK1, TK2, TK3, and TK4 misconnection.
• Check SV3E valve operation.
• Check capillary clogging of oil-equalization circuit and check valve operation.
• Check refrigerant stagnation in compressor shell.
• Check MG-SW or OCR.
• Check indoor address.
• Check the change of remote controller connection
(Group/individual) after indoor address setup.
• Check line address.
MG-SW : Magnet Switch,
OCR
: Over-current Relay
