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Manafacture: Blueair File size: 1.18 mb File name: Language of manual:

In the case of the 020 sized units, each cell should have an even loading pattern. Adjust alignment or replace spring. Replace. Reduce air volume to design cfm. Seal. Insufficient air — check return air grilles for obstruction by furniture, drapes, etc.,and remove, check blower for proper air flow. Replace or reposition as per Maintenance Instructions, Owner's Manual. Install turning vanes or air baffles WA *0 mt mW'm^ m mbs ta tfe »1 Radio or T.V. Interference Accumulation of foreign particles lodged in ionizer section Unit improperly grounded Ground line of power supply not properly grounded Loose ionizer wires Loosely connected components, or loose connections Defective power pack Dents in collector section of ionizer section Damaged dirt collecting pad (media-type only) Improperly installed dirt collecting pad (media-type only) Remove. Provide good ground to unit. Correct same. Replace. Tighten. Replace. Straighten. Clean or replace. Reposition. White Dust on Furnishings Occasionally a "white dust'' might be noticed in bedrooms or newly furnished rooms. This is mainly composed of lint which because of its weight, settles before it reaches your unit. This is not mixed with airborne dirt. It has no staining or soiling properties and will Only air taken thru return grilles is cleaned. j lessen as the excess lint works out of fabrics. . TROUBLESHOOTING PROCEDURE The following troubleshooting procedure has been designed to speed the serviceman’s work and f , ensure that any malfunction in the electronic air 1 cleaner is quickly detected and properly repaired. Troubleshooting Sequence Chart Troubleshooting the electronic air cleaner can be accomplished with only a few tools. • Screwdrivers — long shank, plastic or rubber handles; 2 required for some arc checks. • Jumper cord. • Voltmeter with 25 kv DC probe. • Grounding wire. Most of the steps can be performed by observing the indicator light in the ON-OFF switch. This light is powered from the high-voltage circuit on the high-voltage transformer and is on whenever the high-voltage transformer is working properly. This procedure is outlined in the Troubleshooting Sequence Chart. A complete description is provided on the following pages. This troubleshooting procedure description is divided into 2 sections: 1. Diagnostic Tests — The numbered steps correspond to the numbered steps on the Troubleshooting Sequence Chart. Follow this sequence of tests to locate the cause of a failure within the air cleaner. 2. Component checks explain how to locate a faulty component within an assembly, or how to prove a component good or bad. Diagnostic Tests STEP 1 - ENERGIZE ELECTRONIC AIR CLEANER a. Be sure electronic cells and prefilter screens are clean, dry and properly installed in cabinet. b. Energize electronic air cleaner. — Put switch at “On” position. — Energize blower. c. Check on indicator light operation. — If light is off, failure is in the electronic air cleaner — go to Step 3. — If light is on — go to Step 2. STEP 2 - PUSH TEST BUTTON - INDICATOR LIGHT ON Test Button Fig. 2, item 6, on the cleaner access door, provides a simple easy-to-use method of checking for correct high voltage in electronic cell. When pushed, it shorts from insulated high-voltage components to ground. From the sound of the resulting arc, serviceman may determine whether or not high voltage is supplied to electronic cell. 9 a. Turn electronic air cleaner on and energize system fan to power the electronic air cleaner. b. Push test button. Snapping sounds (arcing noise) indicate that air cleaner is working properly. c. If no arcing noise is heard, check for continuity thru resistor, and then check push button assembly. STEP 3 - PUSH TEST BUTTON - INDICATOR LIGHT OFF a. Turn on electronic air cleaner and energize system fan to power the electronic air cleaner. b. Push test button. Snapping sound indicates that electronic air cleaner is working properly. Failure is in the indicating light circuit. See Step 9 — Defective Light Circuit. c. If no snapping sound is heard, go to Step 4. STEP 4 - REMOVE CELLS a. Turn off blower circuit and remove electronic cells. b. Replace power door and reenergize power supply. Put switch in “On” position and energize blower. c. If light comes on now, check cells and top guide assembly for proper contact. Check surge...

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