My XL15 doesn't work because it needs a fuse. Bought it second hand at a yard sale and plugged it in. I won't work. I noticed it needed a fuse. Didn't get a manual unfortunately so I am guessing it needs a fuse because there isn't one in it. Could someone please help me?
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Sometimes you have to give the fan a push with your finger. If that didn't work, check all connections, fuses, etc. Sometimes things get jarred. If you changed out the connections at the ends of the wires (they include new ones with the replacement motors) you may need to make sure that you connected and/or crimped them correctly.
Please check the fuse first. Unscrew or unlatch the small knob at the back of the machine and inspect the fuse. Even if it looks OK, you probably should replace it. Be sure to get one that is the EXACT same size, available at an auto parts store. If the fuse was the problem, the new fuse should allow your machine to power up and work well.
Make sure the plates are inserted firmly and correctly into the grooves at the top and bottom, so the fingers press firmly on the screen portion.
If the fan now works, but you aren't detecting any purifier (or hearing the buzz caused by the electricity cycling through the plates) you'll need a new transformer. This sends the power through the contact fingers to the plates. Vollara (formerly Alpine/EcoQuest) no longer makes the XL15. The newer machine is called the Classic. Call customer service and they'll tell you what your options are. 800-989-2299. Use #16618 if you need a referral number.
look through the front grill while its "on" you should see a glow from a neon lamp inside. If its not on chances are the circuit card is dead (should have about 350VDC plate voltage).
I have a used but good board if anyone needs one.
If that's one of those fanless air purifiers with parallel plates, it is not all right. The plates need to come up to charge and not discharge much at all unless there is a big contaminant particle (e.g. flying insects.) You may or may not be able to make the plates parallel again; there should be no sharp bits. If it's an ionizer, even then the flashing should be rare; otherwise you will get more ozone than you need. That can be fun, but it is not making plain old clean air....
Confirm that the appropriate sections of the circuitry are powered up and drawing power; check the interlock switch action; toss it back to the maker because the Hi-V transformer or ladder circuit or sense or hold caps were (if testing proves) never quite functional.