Respironics REMstar Choice Service Manual page 78

Repair and Replacement
STEP 3 Set the unit upright. Remove the circuit board from the groove in
the unit base.
If the existing blower has a ribbon cable:
Disconnect the red 8-pin connector from J1 on the circuit board.
Pry the rear blower assembly fastener from the back of the blower
(see page 6-1) and remove the ribbon cable.
If the existing blower has eight wire leads:
Disconnect the white 8-pin connector from J1 on the circuit board.
Unlatch the black cable clip located on the rear panel of the unit
and remove the eight motor wires. According to the unit type,
remove the wires from the foam tape attached to the blower, or
remove the wires from a second cable clip on the rear panel.
STEP 4 Lift the existing blower assembly out of the unit. Using a slotted screwdriver, pry the three (3)
blower assembly fasteners from the blower.
STEP 5 Find the joint between the blower
top and bottom. Using a knife cut
along this joint all the way
around the blower.
STEP 6 Gently lift the blower top from
the blower, taking care not to
damage the fan blade inside the
housing.
STEP 7 Place the new blower top assem-
bly onto the blower, taking care
not to damage the fan blade.
Check that the blower top is
properly aligned and fully seated.
STEP 8 Starting on the very edge of the
blower outlet, attach the blower
sealing tape over the old tape all
the way to the other edge of the
outlet. Remove any excess tape.
STEP 9 Attach the two front-most blower
assembly fasteners, check that
they snap into the dimples located on
the blower top and bottom. Do not attach the rear fastener.
.
6-8
Blower Top
Sub-Assembly
Blower
Joint
(Cut Here)
Blower
Bottom
Blower
Assembly Blower
Fastener Sealing Tape
Motor
Connector
J1
REMstar Service Manual