4-31.1. (MODEL F18H-1S ONLY) CAPACITORS - CONDENSER RUN (C-2), <a href="http://firecontrolman.tpub.com/14104/css/Evaporator-181.htm">EVAPORATOR</a> RUN (C-3), COMPRESSOR START (C4), COMPRESSOR RUN (C-5) AND RELAY; COMPRRSSOR START (KS).

TM5-4120-384-14

4-31.1. (MODEL F18H-1S ONLY)

CAPACITORS - CONDENSER RUN (C-2), EVAPORATOR RUN (C-3), COMPRESSOR

START (C4), COMPRESSOR RUN (C-5) AND RELAY; COMPRRSSOR START (KS).

(Continued)

(3)

Remove

return

air

louver

(para

4-13).

Ground all capacitors before touching.

Touching the

terminals of a charged capacitor can cause electrical

shock and burns.

(4) Check that

wire

connections

and

terminals

are

tight

and

good condition.

(5) Check that

harness

wires

have

cuts,

broken

wires,

frayed insulation.

(6) Check

that

attaching

hardware

tight

and

good

condition.

(7) Inspect electrical parts for obvious damage such

cracks, evidence of overheating, and broken terminals.

(8)

Replace

all

damaged

broken

parts.

Test

Capactiors.

(1) Check by placing test leads of ohmmeter on capacitor

terminals.

Ohmmeter needle should move rapidly toward the top of

the scale, then slowly return toward zero if the capacitor is good.

If needle moves to top of scale and remains there indicating an

internal short or if the needle does not move, indicating an open

circuit, replace the capacitor.

(2) Check capacitors for short circuits to case by placing

the positive (+) lead of the ohmmeter on the positive terminal of

the capacitor and the negative (-) lead to the case.

Continuity

should not be indicated.

Replace capacitor if bad.

Test

Relay.

(1) Using

multimeter,

check

terminals

1-5,

2-5,

and

1-2

for

continuity.

(2)

continuity

exists

relay

good.

(3)

continuity

not

indicated,

replace

relay.

Change 2

4-90.3