Mitsubishi Electric Mr.SLIM SLZ-KA25VA Technical & Service Manual page 23

7-6. TROUBLE CRITERION OF MAIN PARTS
SLZ-KA25VAL.TH
SLZ-KA35VAL.TH
SLZ-KA50VAL.TH
Part name
Room temperature
thermistor
(TH1)
Pipe temperature
thermistor/liquid
(TH2)
Condenser/evaporator
temperature thermistor
(TH5)
Indoor fan motor
(MF)
P
BLK YLW BRN RED ORN
BLU
WHT
: Thermal fuse 141 ± 3˚C
P
Vane motor (MV)
4
White
M
2
Orange
1
Red
5 3
Blue Yellow
Drain pump (DP)
Yellow
1
2
Yellow
Drain sensor (DS)
1
2
3
SLZ-KA25VA.TH
SLZ-KA35VA.TH
SLZ-KA50VA.TH
Check method and criterion
Measure the resistance with a tester.
(Part temperature 10°C ~ 30°C)
Normal
4.3kΩ~9.6k"
Measure the resistance between the terminals with a tester.
(Coil wiring temperature 10°C ~ 30°C)
KA25VA(L)
WHT-BLK 386~428"
BLK-BLU 81~91"
BLU-YLW 28~32"
BRN-RED 157~174"
Measure the resistance between the terminals with a tester.
(At the ambient temperature 20:~30:)
Connector
Red — Yellow
Red — Blue
Red — Orange
Red — White
Measure the resistance between the terminals with a tester.
(At the ambient temperature 20:~30:)
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 0:~60:)
Normal
0.6k"~6.0k"
SLZ-KA25VAL .TH
1
SLZ-KA35VAL .TH
1
SLZ-KA50VAL .TH
1
Abnormal
Opened or short-circuited
Normal
KA35VA(L)
373~413"
155~172"
44~49"
302~335"
Normal Abnormal
300" Open or short
Abnormal
Open or short
Abnormal
Open or short (Refer to the next page for a detail.)
23
SLZ-KA25VA .TH
1
SLZ-KA35VA .TH
1
SLZ-KA50VA .TH
1
Abnormal
KA50VA(L)
308~341"
135~151"
Opened or
44~49"
short-circuited
293~324"