Leakage/Clogging Of Oil-Equalization Circuit; Trouble With Clogging; Trouble With Leakage - Toshiba Super MMU-AP0091H Service Manual

14. LEAKAGE/CLOGGING OF OIL-EQUALIZATION CIRCUIT

Check code list for leakage, clogging of outdoor refrigerant circuit and oil circuit parts
<Trouble with clogging>
Part name
Outdoor PMV
Check valve of main discharge pipe
collective section
Check valve of discharge pipe
Check valve of oil-equalization circuit
Capillary
Strainer
SV3A valve
SV3B valve
SV3C valve
SV3D valve
SV3D valve circuit capillary
Strainer
SV3E valve
Oil return capillary
SV3C bypass capillary
< Trouble with leakage>
Part name
Outdoor PMV
Check valve of main discharge pipe
collective section
Check valve of discharge pipe
Check valve of oil-equalization circuit
SV3A valve
SV3C valve
NOTE) XX: Error on sub-code
Position with trouble Unit issuing
(See next page.) check code
A Corresponding unit
B Corresponding unit
C Corresponding unit
D Corresponding unit
E Other connected unit
F Corresponding unit
G Other connected unit
H Corresponding unit
I Corresponding unit
J Corresponding unit
K Corresponding unit
Position with trouble Unit issuing
(See next page.) check code
A Corresponding unit
B Corresponding unit
C Corresponding unit
D Corresponding unit
E Corresponding unit
G Corresponding unit
Check code to be detected
High-pressure protective operation
Low-pressure protective operation
Discharge temp. error
High-pressure protective operation
High-pressure SW system error
High-pressure SW system error
Oil level detective circuit error
Oil level down error
Oil level down error
Oil level down error
Oil level down error
Oil level down error
Oil level detective circuit error
Oil level down error
Oil level down error
Oil level detective circuit error
Check code to be detected
Outdoor liquid back error
Oil level down error
Oil level down error
Compressor breakdown
Compressor error (Lock)
Oil level down error
Compressor breakdown
Compressor error (Lock)
Oil level down error
Oil level down error
Oil level down error
240
Phenomena
(Corresponding unit)
P20 High-pressure up
H06 Low-pressure down
P03 Discharge temp. up
P17
P20 Abnormal high-pressure up
P04-XX
P04-XX Abnormal high-pressure up
H16-XX Oil-equalization circuit error
H07 or oil-shortage judgment
H07 Excessive oil amount
H07 Shortage of oil amount
H07 Excessive oil amount
H07 Shortage of oil amount
H16-04 Oil-equalization circuit error
H07 Judgment of shortage
Shortage of oil amount
H07 Shortage of oil amount
H16-03 Oil-equalization circuit error
Phenomena
(Corresponding unit)
P13 Refrigerant stagnation
H07
H07 Refrigerant stagnation
H01-XX
H02-XX
H07 Refrigerant stagnation
H01-XX
H02-XX
H07 Excessive oil amount
(Leaked side)
Shortage of oil amount
(Normal side)
H07 Shortage of oil amount
H07 Judgment of oil shortage