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Summary of Contents for Oreck 8143
- Page 1 Increase Quality Through Interaction with the Field The Oreck Manufacturing Company 8143 Air Purifier Tune-Up & Service Guide 07/20/2005 Compiled by Clark DeNoble Increase Quality Through Interaction with the Field...
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Page 2: Table Of Contents
Increase Quality Through Interaction with the Field Table of Contents Tune-Up Pages 3-13 Check Housing Aesthetics and Structural Integrity Page 3 If Equipped: Check that the Louver Functions Smoothly Page 3 Check Fan Speed Switch and Motor Function Pages 3-4 Check the Status Light Function Pages 4-6 If Equipped: Check the Ionizer Switch Function... -
Page 3: Tune-Up
Increase Quality Through Interaction with the Field Tune-Up 1. Check Housing Aesthetics and Structural Integrity a. If you cannot see the blemish at arms length then it probably doesn’t matter otherwise apply the following. b. Hairline scratches: i. Top & Sides-no more than 2, at ≤ ½”, on each surface. ii. -
Page 4: Check The Status Light Function
Increase Quality Through Interaction with the Field FYI-There is a felt behind the bearing. When you apply oil to the bearing hole allow time for it to soak into the felt. Fan Bearing Assembly- Oil Retention Front Bearing Assembly Bracket Felt Retainer Felt 4. - Page 5 Increase Quality Through Interaction with the Field Take the bar/s and look for a carbon trail light to dark brown or just discolored (circled). This trail is often hard to see but it is supplying an electrical path from a negative plate to a positive plate (see arrows).
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Page 6: If Equipped: Check The Ionizer Switch Function
Increase Quality Through Interaction with the Field Status light function reversed: Operates in reverse, when you turn the unit ON the Status light briefly shows green then goes to red and when you turn the unit OFF the Status light fades from red to green and goes out, then either the wiring is reversed or the LED board is defective. - Page 7 Increase Quality Through Interaction with the Field iv. Twisted Fan- Determine if the fan is twisted (the blades should be horizontal). You can untwist the fan by gently turning the ends so the blades straighten out (this has eliminated ticking v.
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Page 8: Thorough Washing Instruction
Increase Quality Through Interaction with the Field THOROUGH WASHING INSTRUCTION 1. REMOVE UPPER HOUSING Turn the unit onto its’ backside. Remove 9 screws. 2. REMOVE UPPER HOUSING Tilt the upper housing off the lower housing. You may need to hold the fan- bushing bracket down while removing the upper housing. - Page 9 Increase Quality Through Interaction with the Field 6. REMOVE THE POWER SUPPLY Remove the two (2) screws that fasten down the power supply. 7. REMOVE THE MOTOR HOLD DOWN BRACKET Remove the four (4) screws from the bracket. Remove the bracket. Remove the two (2) upper motor mounts 8.
- Page 10 Increase Quality Through Interaction with the Field 11. REMOVE THE POWER CORD Remove two (2) screws. Remove the cord clamp. Remove the cord. 12. CLEAN AND REASSEMBLE CAUTION DO NOT USE: Solvent Spot & Stain Remover: liquefies the plastic. Cleaning may involve just rinsing the housings, fan and cell parts with hot water.
- Page 11 Increase Quality Through Interaction with the Field 9. Check the Structural Integrity of the Cell a. Remove the cell from the unit b. Remove the Pre-filter from the Precipitator cell and place in a soap bath. Gently clean, rinse and dry. c.
- Page 12 Increase Quality Through Interaction with the Field Gently clean the two metal contacts of the cell interconnect board with a plastic safe contact cleaner/lubricant and soft cloth. Use Zoom Spout or equivalent to lubricate the fan bearing. 11. Finishing Up •...
- Page 13 Fix the grill in place and tighten the retaining screw. • Recheck all switch functions for proper unit operation. • Clean the exterior using Oreck Foam Cleaner 32252 or equivalent. Don’t spray any cleaning product into louver area (may result in stray static arcing). Other Service Considerations Nothing Works 1.
- Page 14 Increase Quality Through Interaction with the Field 4. You should get a 0 reading in each of the three On positions. 5. If you get an ∞ (infinite) reading the problem is either with the power switch, wiring including cord, safety switch or safety switch actuator. 6.
- Page 15 Increase Quality Through Interaction with the Field 5. Touch the other lead to the back of the power switch where the black, (brown or blue) and red. 6. If you get a ∞ reading in any position then the motor is bad. 7.
- Page 16 Increase Quality Through Interaction with the Field 4. Lift the fan out of the side shown in Fig H and pull it off the motor shaft (Fig I). 5. Remove the four (4) screws securing the motor to the lower housing (Fig J). 6.
- Page 17 Increase Quality Through Interaction with the Field 9. Turn the defective motor on its’ side and remove the cable clamp screw. 10. Cut the four (4) wire leads from the motor. Remove motor. 11. Install the new motor and place the new harness with the old harness. 12.
- Page 18 Increase Quality Through Interaction with the Field 13. Trim back the jacket (outer covering) for a convenient lead length on both harnesses so you can strip (3/8”) the wires. 14. For stability cable tie both harnesses together before connecting leads. 15.
- Page 19 Increase Quality Through Interaction with the Field 20. Fit the fan to the motor shaft. One fan grommet is made to butt up against the brass retainer on the motor shaft and another fits over. 21. Reassemble and test operation: must work in all three “On” positions. Cell High Voltage Circuit Board Replacement 1.
- Page 20 Increase Quality Through Interaction with the Field 5. Tie-wrap all leads together and position the connectors so they will not contact the top housing (Fig E). 6. Perform the tests in Tune-Up to assure successful repair. 7. Reassemble unit. Increase Quality Through Interaction with the Field...
- Page 21 Increase Quality Through Interaction with the Field Circuit Diagram Red to ionizer Blue Black plate on cell High Voltage Black Power Supply … On/Off & Fan Control Switch Black Black Brown Transformer Ionizer On Black Blue White Black Status LED Board Motor White White w/needle...
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