Maytag Amana PTC A Series Service Instructions Manual page 56

SERVICING
Voltmeter
Ammeter
Testing Capacitance
Capacitance (MFD) = 2650 X Amperage
If the value obtained is not within 10% of the rating printed on
the capacitor, replace.
S-16 CHECKING FAN AND MOTOR BLOWER WIND-
INGS
BLOWER WHEEL,BLOWER MOTOR, FAN BLADE
1. Remove chassis from the wall sleeve.
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. Remove the two screws securing the top screen to the
evaporator assembly. (Be sure to slide the top of the screen
between the top flange and chassis when reassembling.)
6. Remove the two screws securing the heater assembly to
the evaporator.
7. Pull heater assembly up and out of the chassis.
8. Loosen the Allen screw securing the clamp holding the
blower wheel on the motor shaft.
9. Pull the blower wheel off the shaft.
10. Disconnect the blower motor wiring as follows:
White from capacitor C terminal
Red from control board FAN LOW terminal
Brown from capacitor FAN terminal
Black from control board FAN HIGH terminal
Gently pull the wire through the center partition.
11. Remove the two screws securing the side center partition
side brace to the top brace. Remove the brace.
12. Remove the two screws securing the condenser air baffle
to the center partition. Remove the brace.
56
15 Amp
Fuse
Capacitor
Voltage
13. Remove all screws from the sides of the outdoor coil se-
curing the shroud to the coil.
14. Pressing the tabs on the right side of the shroud separate
the shroud from the outdoor coil.
15. Remove the two screw securing the outdoor coil to the
base pan.
16. Carefully lift the outdoor coil over the basepan lip away
from the fan wheel.
17. Push the shroud back toward the center partition panel.
18. Loosen the Allen screw securing the fan wheel clamp to
the motor shaft. Remove the fan blade. The fan blade must
be 1 inch away from the outdoor coil when reinstalled.
19. Remove the three mounting bolts securing the fan motor
to the center partition. Remove the motor.S-16 Checking
Fan and Motor Blower Windings
The auto reset fan motor overload is designed to protect the
motor against high temperature and high amperage conditions
by breaking the common circuit within the motor, similar to the
compressor internal overload. However, heat generated within
the motor is faster to dissipate than the compressor, allow at
least 45 minutes for the overload to reset, then retest.
WARNING
1. Remove the motor leads from their respective connection
points and capacitor (if applicable).
2. Check the continuity between each of the motor leads.
3. Touch one probe of the ohmmeter to the motor frame
(ground) and the other probe in turn to each lead.
If the windings do not test continuous or a reading is obtained
from lead to ground, replace the motor.
WARNING