Sanyo KH2442 User Manual download pdf (Page 189)

Section

SM830082

IV - 33

SM830082

4. Service procedures

Fan motor

capacitor

Compressor motor

capacitor

1041_X_S

Multimeter

Ω

Fig. IV-19

6 Continuity of fuse on P.C.B. Ass’y

• Check for continuity using a multimeter

as shown in Fig. IV-20.

Method Used to Replace Fuse on PCB Ass’y

1. Remove the PCB Ass’y from the electrical compo-

nent box.

2. Remove the fuse from PCB Ass’y using pliers while

heating the soldered leads on the back side of the

PCB Ass’y with a soldering iron (30W or 60W).

(Fig. IV-21)

3. For replacement, insert a fuse of the same rating to

the intended position and solder it.

(Allow time to radiate heat during soldering so that

the fuse does not melt.)

When replacing the fuse, be

sure not to break down the

varistor.

NOTE

1042_X_S

Fuse

Fig. IV-20

1043_X_S

Soldering iron

PCB Ass’y

Fuse Varistor

Pliers

5 Motor capacitor ............ Both in indoor and outdoor unit

• Remove the lead wires from the capacitor terminals, and then place a probe on the capacitor

terminals as shown in Fig. IV-19. Observe the deflection of the pointer, setting the resistanc

measuring range of the multimeter to the maximum value.

• The capacitor is “good” if the pointer bounces to a great extent and then gradually returns to

its original position.

The range of deflection and the deflection time

differ according to the capacity of the capacitor.

NOTE

Fig. IV-21

CAUTION

1 2 ... 184 185 186 187 188 189 190 191 192 193 194 ... 201 202

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