Trouble Criterion Of Main Parts - Mitsubishi Electric SLZ-KA09NA Technical & Service Manual

6-5. TROUBLE CRITERION OF MAIN PARTS

SLZ-KA09NA.TH
Part name
Room temperature
thermistor
(TH1)
Pipe temperature
thermistor/liquid
(TH2)
Condenser/evaporator
temperature thermistor
(TH5)
Indoor fan motor
(MF)
P
BLK BLU YLW BRN RED ORN
WHT
: Thermal fuse 284°F±36 F
Vane motor (MV)
White
M
Orange
Red
Blue Yellow
Drain pump (DP)
Relay
connector
Yellow
1
2
Yellow
Drain sensor (DS)
1
2
3
SLZ-KA12NA.TH
Check method and criterion
Measure the resistance with a tester.
(Part temperature 50°F ~ 86°F)
Normal
4.3k~9.6k
Measure the resistance between the terminals with a tester.
(Coil wiring temperature 50°F ~ 86°F)
KA09NA
WHT-BLK 387~418
BLK-BLU 77~83
BLU-YLW 19~21
YLW-RED
179~193
RED-BRN
Measure the resistance between the terminals with a tester.
(At the ambient temperature 68°F ~ 86°F)
Connector
Red — Yellow
Red — Blue
Red — Orange
Red — White
Measure the resistance between the terminals with a tester.
(At the ambient temperature 68°F ~ 86°F)
Normal
290
Measure the resistance between the terminals with a tester.
Measure the resistance after 3 minutes have passed since the power supply was intercepted.
(At the ambient temperature 32°F ~ 140°F)
Normal
0.6k ~6.0k
SLZ-KA15NA.TH
Abnormal
Opened or short-circuited
Normal
KA12NA
303~328 272~295
105~114
39~42
235~254 191~206
Normal Abnormal
300 Open or short
Abnormal
Open or short
Abnormal
Open or short (Refer to the next page for a detail.)
20
Abnormal
KA15NA
Opened or
79~85
short-circuited
37~40