55
S-15 CAPACITOR CHECK
REV.
VALVE
FAN
LOW
FAN
HIGH
LINE 1
DANGER HIGH VOLTAGE
265
vac
230
vac
ON
LED1
IN
FD2 TF1 TF2 C R GL W2 Y B GH
P3
P5
P
6
ON
-B
O
A
R
D
XF
R
M
R
INDOOR
CONTROL
FAN
B
A
LOW
COOL
HIGH
COOL
LOW
HEAT
FAN
HIGH
HEAT
ON/AUTO
1. Remove front cover.
2. Remove control knobs by pulling straight up away from the
escutcheon.
3. Remove the escutcheon by lifting front of escutcheon up
and pulling top tabs from holes.
4. Remove the two mounting screws, one on each side of the
control board cover. Tilting the control panel out, remove
the cover.
5. Disconnect all wiring to the capacitor. Label the wires to
ensure proper reassembly.
6. Remove the screw securing the capacitor mounting clamp
to the center partition. Remove the capacitor.
Resistance Check
WARNING
Discharge capacitor and remove wire leads.
WARNING
DISCHARGE CAPACITOR THROUGH A 20 TO 30 OHM
RESISTOR BEFORE HANDLING.
Capacitor
Capacitor
Capacitor
Capacitor Resistance TEST
a. Good Condition - indicator swings to zero and slowly
returns to infinity. (Start capacitor with bleed resistor
will not return to infinity. It will still read the resistance of
the resistor).
b. Shorted - indicator swings to zero and stops there - re-
place.
c. Open - no reading - replace. (Start capacitor would read
resistor resistance).
2. Testing for ohms between either capacitor terminal and
the capacitor body must show infinite ohms.
Capacitance Check
Using a hookup as shown below, take the amperage and volt-
age readings and use them in the formula:
WARNING
LINE VOLTAGE NOW PRESENT.
SERVICING
