tag:blogger.com,1999:blog-3584132508185165153.post521404900652347773..comments2024-03-19T00:03:28.879-04:00Comments on My Commentary and Technical help: EcoQuest Fresh Air II air purifier repairBob Davishttp://www.blogger.com/profile/04602803109106077023noreply@blogger.comBlogger29125tag:blogger.com,1999:blog-3584132508185165153.post-265893953033589612024-01-15T17:59:49.202-05:002024-01-15T17:59:49.202-05:00Anyone know the value of R11 on the verson 2 board...Anyone know the value of R11 on the verson 2 boards? I have one with the FQD1020L FET burned out and R11 is toast!Bob Davishttps://www.blogger.com/profile/04602803109106077023noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-74441197072609562552024-01-07T12:32:20.473-05:002024-01-07T12:32:20.473-05:00I'm not familiar with the 2.2, I have the orig...I'm not familiar with the 2.2, I have the original FA, so just a few suggestions. Do a visual inspection first for anything obvious such as a leaking or 'domed' cap. I'm not sure if this version shuts down when the bulb goes bad but something to consider. Have you tried replacing the ozone plate? Check the mosfets/triac for a short/open since they do most of the heavy lifting. Testing done with POWER OFF. I didn't have any luck finding a service manual or schematic for mine online.etronicfixerhttps://www.blogger.com/profile/01220598059637898344noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-90257563371932057472024-01-06T18:53:42.704-05:002024-01-06T18:53:42.704-05:00My 2.2 shuts off when the fan starts. I'm thin...My 2.2 shuts off when the fan starts. I'm thinking capacitors but am a novice. What is happening and what's the fix?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-34059658560634078172023-06-15T19:29:59.630-04:002023-06-15T19:29:59.630-04:00I fixed it! Looks like it was the triac on the ozo...I fixed it! Looks like it was the triac on the ozone control and a fuse that I missed the first time. I monitored it under a thermal cam (never thought of it until after I fixed it) just in case the fuse blew again and I can actually see the ceramic plate 'light up' when I place it in purifier mode.etronicfixerhttps://www.blogger.com/profile/01220598059637898344noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-9299204574855511302023-05-05T15:04:49.739-04:002023-05-05T15:04:49.739-04:00Schematics for original Fresh Air with parts descr...Schematics for original Fresh Air with parts description.<br /><br />FreshAir_DofC_10-08-04.pdfAnonymoushttps://www.blogger.com/profile/02841328191158907471noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-3782192564556987622023-05-05T12:28:52.516-04:002023-05-05T12:28:52.516-04:00I used to be an ecoquest distributor when they fir...I used to be an ecoquest distributor when they first started out - sold many fresh air units back in the day. I kept one (original Fresh Air) for myself but now it seems the power to run the ozone plate is not there, everything else is still working fine. Yes - I did replace the plate with a few different new ones to no avail. Would anyone know what the expected voltage output to the ozone plate should be? I just don't want to blow up my meter. I haven't tested the transformer output for that reason. Is there a chronic known failure point on these units as they age? I really miss having this operating in my home.It's an oldie ... but a goodie when it's working.Anonymoushttps://www.blogger.com/profile/02841328191158907471noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-70184106501164708552023-02-10T04:39:37.213-05:002023-02-10T04:39:37.213-05:00I have only this part of schematic.
http://u.diany...I have only this part of schematic.<br />http://u.dianyuan.com/bbs/u/82/92371255428060.jpgNikhttps://www.blogger.com/profile/11046580967351813082noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-15752172444701526742023-02-05T07:10:29.464-05:002023-02-05T07:10:29.464-05:00This comment has been removed by the author.Repairhttps://www.blogger.com/profile/05384390067627338782noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-59513529257643030522023-02-05T07:10:05.874-05:002023-02-05T07:10:05.874-05:00
Nik, Can you send me other parts of the schematic...<br />Nik, Can you send me other parts of the schematic please?Repairhttps://www.blogger.com/profile/05384390067627338782noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-62762755638690148742022-08-23T22:36:16.454-04:002022-08-23T22:36:16.454-04:00Hi Bob, what is the value of R31 and R32?Hi Bob, what is the value of R31 and R32?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-26620881187659202062020-04-13T10:02:37.783-04:002020-04-13T10:02:37.783-04:00To any one who is having trouble with the display ...To any one who is having trouble with the display on their Fresh Air 2, I was able to repair mine with a soldering iron and tin foil. got the idea from this youtube video: https://www.youtube.com/watch?v=-QZk9WCz-D8&t=509s . It is a little crude but the repair is still holding . Skip ahead to the section where he covers the fpc repair on the calculator. I did not use a wet sponge for cooling , just made a few slow pressing passes and did a check, and repeat until I had a fully working screen. Just be careful you don't get the fpc too hot or it will melt.<br /><br />BJD: display replacement is fairly easy, remove the back cover, filter, and light. Unplug the 2 fan wires( I marked one so I knew where it belonged) then pull the aluminum housing up, unplug the rj6 connector, then unscrew the control/display board from the switch panel, remove the switch panel. From there you should have everything out and easily accessible for the replacement. Notes: when removing the aluminum assembly you can tip it on an angle as you separate it from the plastic, this will allow you to remove it without unplugging the other wires. Another note: there is a flex cable going from one of the boards to the buttons on the front, be sure to release its white holder or you may risk damaging the cable. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-26560794699450303152020-04-04T16:52:08.485-04:002020-04-04T16:52:08.485-04:00I need a schematic for a greenTech 3000 - Fresh ai...I need a schematic for a greenTech 3000 - Fresh air II powerboard board number SFA3.0-PCB1-007ghackthttps://www.blogger.com/profile/15217813749256115246noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-79144502434599349792020-04-04T16:51:16.767-04:002020-04-04T16:51:16.767-04:00I need a schematic for a GreenTech fresh Air II po...I need a schematic for a GreenTech fresh Air II power bd SFA3.0-PCB1-007ghackthttps://www.blogger.com/profile/15217813749256115246noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-38627576762947312322020-04-03T15:10:49.026-04:002020-04-03T15:10:49.026-04:00My Freshair ecoquest LCD display is not working an...My Freshair ecoquest LCD display is not working and is no longer under warranty . I have bran new LCD display anyone know how to replace?BJDhttps://www.blogger.com/profile/01034690452809121883noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-50430918518948829032019-09-18T11:11:47.168-04:002019-09-18T11:11:47.168-04:00The most common errors are the the filter needs cl...The most common errors are the the filter needs cleaning or that the High Voltage Plate is cracked.Bob Davishttps://www.blogger.com/profile/04602803109106077023noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-34906665334029549162019-09-17T06:55:25.131-04:002019-09-17T06:55:25.131-04:00Display show error how will rectify the issue
Display show error how will rectify the issue<br />Anonymoushttps://www.blogger.com/profile/01904312620832025553noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-1626238630279396022019-09-17T06:55:12.548-04:002019-09-17T06:55:12.548-04:00Display show error how will rectify the issue
Display show error how will rectify the issue<br />Anonymoushttps://www.blogger.com/profile/01904312620832025553noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-81218775479207619912016-08-09T10:29:31.195-04:002016-08-09T10:29:31.195-04:00Hi Bob, Do you have a wiring diagram for Eco quest...Hi Bob, Do you have a wiring diagram for Eco quest Fresh Air? when I took off front cover to clean.. a screw dropped out. As far as I can see, it is to the red wire. I don't know where it connects to. Thanks for any help!<br />Anonymoushttps://www.blogger.com/profile/13328827703930998638noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-59583658954216871672016-08-02T03:36:20.877-04:002016-08-02T03:36:20.877-04:00You ever get this thing working? I've got one....You ever get this thing working? I've got one. The OZ TRIAC is corroded out, and I've got a filter cap near the red flyback that blew. Also, there was a lot of green corrosion which completely killed two traces to the south of that red flyback. <br /><br />It was "repaired" at some point according to a sticker. But the guy who did it must have been a moron because there were plenty of ugly and even cold-looking, spherical solder joints. I think the cap had a solder joint fail and eventually arc'd itself to death.<br /><br />Maybe I'm missing something, but it seems dumb as heck to leave the PCB "open to the elements" in an air purifier. Some components may need diagnosing / replacement (so maybe no to potting the whole thing in black goop), but surely letting any water and grime just drop all over the thing.Chris Katkohttps://www.blogger.com/profile/06822445036157463389noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-33997910596128569132016-02-02T11:19:12.498-05:002016-02-02T11:19:12.498-05:00It is very similar piece of schemes:
http://u.dian...It is very similar piece of schemes:<br />http://u.dianyuan.com/bbs/u/82/92371255428060.jpg<br />r36 - 5.1 Ohm<br />r37 - 10 OhmNikhttps://www.blogger.com/profile/11046580967351813082noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-54357317577432874952016-02-02T06:09:33.027-05:002016-02-02T06:09:33.027-05:00Plese help, need nominal r36, r37.Plese help, need nominal r36, r37.Anonymoushttps://www.blogger.com/profile/17872349001213035791noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-71496788156613489382016-02-02T06:07:45.740-05:002016-02-02T06:07:45.740-05:00Plese help, need nominal r36, r37.Plese help, need nominal r36, r37.Anonymoushttps://www.blogger.com/profile/17872349001213035791noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-45081930496359228642015-09-20T17:01:46.558-04:002015-09-20T17:01:46.558-04:00I repare my board, it work!
But i replaced all ele...I repare my board, it work!<br />But i replaced all elements of power input part. The total price of all elements ~15$.<br />As first step, you must check voltage on input capacitor, must be around 175V.<br />The second step, you must replace viper53 and check all elements around this IC.<br />If this not help, you can check output diodes and capasitors. My output capacitors is dead too, but diodes is good.Nikhttps://www.blogger.com/profile/11046580967351813082noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-86052584670768190122015-09-12T23:15:41.658-04:002015-09-12T23:15:41.658-04:00I just opened mine after years of not working.. n...I just opened mine after years of not working.. nothing will come on when plugged in and the fuse is ok. I have the second gen board. I will try to test the voltage points tomorrow.. any other advise one troubleshooting this crazy thing?? Aalelanhttps://www.blogger.com/profile/02388710475222641417noreply@blogger.comtag:blogger.com,1999:blog-3584132508185165153.post-4705721918692862702015-09-02T15:25:40.603-04:002015-09-02T15:25:40.603-04:00I send you a part of schematic by e-mail.I send you a part of schematic by e-mail.Nikhttps://www.blogger.com/profile/11046580967351813082noreply@blogger.com