6. Fuse
Checking continuity of fuse on PCB ASS’Y.
Remove the PCB ASS’Y from the electrical component box. Then pull out the fuse
from the PCB ASS’Y (Fig.1)
Fuse
PCB Ass'Y
Fig.1
2) Check for continuity by a multimeter as shown in Fig.2.
Fuse
Fig.2
7.Capacitor
1) Remove the lead wires from the capacitor terminals, and then place a probe on
the capacitor terminals as shown in Fig.3.
2) Observe the deflection of the pointer, setting the resistance measuring range of
the multimeter to the maximum value.
3) The capacitor is “good” if the pointer bounces to a great extent and then gradually
returns to its original position.
4) The range of deflection and deflection time differ according to the capacity of the
capacitor.
Compressor motor
capacitor
Fan motor
capacitor
Multimeter
Fig.3
15. CHECKING COMPONENTS
73
Summary of Contents for 2AMW-42U4RRA
Page 10: ...1 GENERAL Type Capacity Btu h View 1 to 5 indoor units 42K 6 ...
Page 15: ...3 OUTLINES AND DIMENSIONS 21K AMW3 24U4RFA Unit mm 11 ...
Page 16: ...3 OUTLINES AND DIMENSIONS AMW3 24U4RAA Unit mm 414 380 12 ...
Page 17: ...3 OUTLINES AND DIMENSIONS 27K Unit mm 414 380 13 ...
Page 18: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON NS S Unit mm 42K 14 ...
Page 29: ...7 REFRIGERANT CYCLE 7 Refrigerant cycle 12K 14K 18K 21K 24K 25 ...
Page 32: ...8 WIRING DIAGRAM Electric wiring diagram 1982504 D 21K AMW3 24U4RFA 28 ...
Page 33: ...8 WIRING DIAGRAM AMW3 24U4RAA Electric wiring diagram 1957327 B 29 ...
Page 34: ...8 WIRING DIAGRAM 27K 36K 30 ...