15
REPLACEMENT PART PROCEDURES
THERMOSTAT
1. Disconnect unit from power/unplug power cord.
2. Remove evaporator inlet air grille on the front panel of unit.
3. Remove screws and clips that secure the thermostat sensing bulb.
4. Remove the unit’s top panel attaching screws. Lift panel 6 to 8 inches to reveal components on control panel.
5. Pull sensing bulb and tubing up and out from the evaporator coil area.
6. Mark and remove wires from ON/OFF Switch.
7. Mark and remove wires from Evaporator Fan Switch
8. Mark and remove wires from Condensate Alert Light and Power Ready Light.
9. With a small slotted screwdriver, remove thermostat dial set screw from shaft. Note: Set screw is always tightened
on FLAT section of shaft. Remove dial.
10. Remove switches and lights from control panel.
11. Remove instrument panel overlay by prying up the edges first, then pulling it completely off.
12. Remove 2 thermostat attaching screws; then remove thermostat.
13. Install new thermostat and attaching screws. Apply new overlay.
14. Snap in Fan Switch, ON/OFF Switch, and Green and Red light through new overlay.
15. Reconnect marked wires, guide thermostat bulb to mounting location and attach with clips.
16. Reinstall top panel & attaching screws; replace evaporator grille assembly.
EVAPORATOR BLOWER
CONDENSER BLOWER
1. Disconnect unit from power/unplug power cord.
2. Remove screws to top, right & left side panel, and remove.
3. Remove evaporator duct shroud.
4. Cut, mark and strip electric wires from blower motor for re-connection later.
5. Position top panel to permit blower removal.
6. Remove 1/4 inch countersunk screws and nuts from blower mounting brackets.
7. Remove blower mounting brackets from inoperative blower to new blower.
8. Install new blower in unit attaching 1/4 countersunk screws & nuts.
9. Connect new blower wires to stripped and marked wires.
10. After wiring, test to make sure new blower operates; then reassemble in reverse order.
BELT DRIVE
1. Remove screws on top panel, remove right and left side panels, duct shroud and blower screen.
2. Loosen belt tension, remove belt, blower pulley, adjusting rods, blower motor and plate.
3. Remove 1/4 in nuts & bolts that attach blower cage to basepan and vertical partition.
4. Remove blower and cage assembly from unit through right side, lifting the cage over the unit wiring.
5. Remove nuts & bolts that attach blower to cage assembly; re-install new blower.
6. Reassemble in reverse order, and test for proper operation; reattach side panels & top.
1. Disconnect unit from power/unplug power cord.
2. Remove screws to top, right & left side panel, and remove.
3. Remove condenser duct shroud.
4. Cut, mark and strip electric wires from blower motor for re-connection later.
5. Position top panel to permit blower removal.
6. Remove 1/4 inch countersunk screws and nuts from blower mounting brackets.
7. Remove blower mounting brackets from inoperative blower to new blower.
8. Install new blower in unit, attaching 1/4 countersunk screws & nuts.
9. Connect new blower wires to stripped and marked wires.
10. After wiring, test to make sure new blower operates; then reassemble in reverse order.
BELT DRIVE
1. Follow same procedure for evaporator blower except there is no blower screen to remove.
DIRECT DRIVE
DIRECT DRIVE
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