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11. Remove the Phillips-head screw and the wire
retainer. Pull the fan motor wires through the
opening.
Wire Retainer
12. Lift the outdoor fan motor and shroud from the
base pan.
(Continued next page)
Heater Assembly
The heater assembly consists of three 230/208 VAC
or 265 VAC resistance heating elements, a L110°C
(230°F) one-shot thermal fuse, and an L80-17°C
(176-63°F) auto reset thermal protector. The one-
shot thermal fuse is used as a backup in case the
auto reset thermal protector fails (stuck closed). The
heater assembly is located inside the air plenum
behind the indoor coil. The heaters and protectors
are removed as an assembly.
Heater StartUp Control
The heater is formed from a ceramic type PTC
(Power Temperature Coef
fi
cient) electrical resistance
material, which will generate heat in response to the
fl
ow of electric current passing through it.
Auto Reset Thermal
Protector
One-shot Thermal
Fuse
10. Using a
fl
at blade screwdriver, pry and remove
the wire cover from the rear of the air plenum.
Wire Cover
