Motor Replacement; Blower Wheel Replacement; Replacement Parts - Rheem RHSL-HM1817AA Installation Instructions Manual

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12.6 MOTOR REPLACEMENT

With the blower assembly removed, the indoor blower motor can be removed and
replaced using the following procedure:
• Remove motor leads from the motor capacitor and blower relay. Note lead locations
for ease of reassembly. Pull leads from plastic bushing in blower side.
• Loosen the set screw holding blower wheel onto the motor shaft. Shaft extends
through blower hub so that a wrench can be used on the extended shaft to break the
shaft loose if necessary. Be careful not to damage shaft. A wheel puller can be used
on the groove in the blower hub if necessary.
• Remove 4 metal screws holding motor mounts to blower side and remove motor from
blower assembly.
• To install new motor, remove 1 screw holding motor mounts to motor shell and
remove mounts (four) from motor.
• Install (four) motor mounts to motor using same screw or screws supplied with
replacement motor.
WARNING
To avoid electrical shock which can result in personal injury or death, use only
the screws furnished in the motor shell mounting holds. Screws are #8-18 x .25
in. long blunt nose thread forming. Screws longer than 1/4 in. may contact the
motor winding.
• To reassemble, insert motor shaft through hub in blower wheel and orient motor to
original position with motor leads and motor label to front of blower (control area).
• Reassemble 12 sheet metal screws through motor mounts into blower side. Do not
overtorque screws, blower side is light gage sheet metal, just snug screws tight
enough to hold motor mounts in position.
• Turn motor shaft so that flat on shaft is located under blower wheel setscrew, and
blower wheel is centered in blower housing with the same distance on each side
between the inlet venturi and outside of blower wheel. Tighten setscrew on motor
shaft. Turn wheel by hand to make sure it runs true without hitting blower sides.
• Reassemble motor wiring to capacitor and blower relay making sure that wires match
wiring diagram and are tight and secure.

12.7 BLOWER WHEEL REPLACEMENT

With the blower assembly removed and the motor assembly removed (see above
instructions), remove the 4 screws holding the blower wrap (cutoff) to the blower sides.
• With wrap (cutoff) screws removed, cut off end of blower wrap will spring up. Lifting
wrap blower wheel is removed through the discharge opening in the blower housing.
• To replace, make sure wheel is oriented properly with hub to the opposite side from
the motor. Lift blower wrap and insert blower wheel through discharge opening in the
blower housing.
• Hold blower wrap down into position and replace two screws holding blower wrap to
blower sides.
• See motor replacement and blower assembly instructions for remaining assembly
procedure.

13.0 REPLACEMENT PARTS

Any replacement part used to replace parts originally supplied on equipment must be the
same as or an approved alternate to the original part supplied. The manufacturer will not
be responsible for replacement parts not designed to physically fit or operate within the
design parameters the original parts were selected for.
These parts include but are not limited to: Circuit breakers, heater controls, heater limit
controls, heater elements, motor, motor capacitor, blower relay, control transformer,
blower wheel, filter, indoor coil and sheet metal parts.