Samsung MH080FXEA4A - Fault Diagnosis of Major Parts

9-12Samsung Electronics
9-5 Fault Diagnosis of Major Parts
Preparation : multimeter (AC voltage, DC voltage, Resistance)
Indoor
Temperature sensor
Heat exchanger in/out sensor
Outdoor
Temperature sensor
Condenser temperature sensor
Outdoor
Discharge temperature sensor
OLP temperature sensor
Indoor Fan Motor
Measure the resistance between terminals of the sensor connector housing. In case of outdoor
unit sensor, "view mode" is used for checking sensor temperature. In case of Indoor temperature
sensor, temperature is displayed on the display unit in "Fan Mode" operation.
Normal
Abnormal ∞, 0Ω...open or short
Measure the resistance between terminals of the sensor connector housing.
In case of outdoor unit sensor, "view mode" is used for checking sensor temperature.
Normal
Abnormal ∞, 0Ω...open or short
Measure the resistance between terminals of the Motor connector housing
Normal At the normal temperature (10˚C - 30˚C)
Abnormal ∞, 0Ω...open or short
DiagnosisPart
Ambient temperature 15˚C20˚C25˚C30˚C35˚C40˚C
Resistance of sensor[KΩ] 14.7 12.1 10 8.3 6.9 5.8
Ambient temperature 0˚C10˚C20˚C30˚C40˚C50˚C
Resistance of sensor[KΩ] 553 362 242 166 115 82
*MH020FPEA/ MH023FPEA/ MH026FPEA/ MH✳✳✳✳✳-07/ MH✳✳✳✳✳-09
*White wire is not short with Red wire.
Terminal(wire color) Model Bender Resistance(Ω) Remark
SHIBAURA 356~435
SINYA 531~650
DAEYANG 312~381
MH052FWEA
SUNGSHIN 130~159
DAEYANG 211.5~258.5
MH026FKEA SHIBAURA 314.7~425.7
MH035FKEA
NEW MOTECH 142.8~193.2
MH030FMEA
MH035FMEA NEW MOTECH 115.6~156.4
MH052FMEA
MH023FEEA
MH026FEEA SINYA 141.4~190.9
MH035FEEA
Yellow-Red MH052FEEA SINYA 40.1~54.3
Yellow-Blue MH052FDEA OYANG 46.8~57.2
SHIBAURA 324.9~397
SINYA 320~391
DAEYANG 252~308
MH052FWEA
SUNGSHIN 106.2~130
DAEYANG 164.7~201.3
Yellow-Red
MH026FKEA SHIBAURA 214.4~290.2
MH035FKEA
NEW MOTECH
160.7~217.3
MH030FMEA
*White-Blue
MH035FMEA
NEW MOTECH
110.5~149.5
MH052FMEA
MH023FEEA
MH026FEEA SINYA 122.4~165.6
MH035FEEA
MH052FEEA SINYA 50.3~68.1
Yellow-Red MH052FDEA OYANG 81.9~100.1
MH023/026/035FWEA
MH✳✳VW2-✳✳
MH023/026/035FWEA
MH✳✳VW2-✳✳
Sub
Main
Yellow-Blue
Blue-Red
Red-Yellow
*White-Yellow
Resistance[Ω]
MH✳✳✳FVEA MH035FPEA MH052FPEA
MH✳✳VV1-✳✳ *MH✳✳✳✳✳✳✳ MH✳✳✳✳✳-12 MH052FPEA1
Yellow-Blue 364~445 250~280 250~280 120~150 Main
Yellow-Red 306~374 420~480 330~370 120~150 Sub
Terminals
(wire color)
Remark