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There is a good app on Appstore IOS.....called RTFM thermostats, with preloaded instal and operating manuals for hundreds of different brandsand models. Easy to use and well orginised. It will make...

I see now, my bad.....and sorry. I did not realise that is said T8,. Thinkig of TH800,TH811,TH832OU. Those tstats have same way to get to installer set up. I was WRONG.

And the same whay to get to installer setup screen...duh

Are we talking here about Vision Pro 8000. Tstat? Two stage heat and one cooling. Press sceadule and second and fourt blank area. Now you are in installer setup mode. O terminan wire from tstat goes...

You can swich first floor tstat with second and see if does same thing. NO it does not mean it was in AC if there is ice on pipes.......

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Check gas valve manifold pressure and what city is giving you...i do a lot of pm work when it's slow. Ohm out hot surface ignitor should be around 60-90 ohms, i also vacuum dirt and dust makes it...

Need manual for Liebert Modek BU071WG and Serial NO9B740109 thanks, PLEASE.

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Nice explanation Airreserch. Nice.

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Dirt,dirt,dirt......in other words water flow. Also water temperature. Check that beafore you start replacing control boards.

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Check your loop temperature. If your supply water is to cold, system will trip on cold water safety. Also check tempersture sensor; but i doubt it is a sensor. There should be sticker on the side of...

Ooops , wrong tred,sorry did not see. This needed to go on tred about ptacs sorry. Dont know how to move.

If you worked on split systems and other staff, ptac's are going to be joke for you. A lot hotels dont even fix them anymore, just replace them. You might be a hero if you fix some. With the new ones...

Check the LED codes if yoi jave mark 4 board or any other board, water flow is very important in units like this ,strainers might be pluged and if you take it upart you will be amazed whats in there,...

Pozdrav Drazene!!! Hello Drazen!!! That is well known name in Croatia, europe and NBA thanks to basketball legend and one of the wery first europian players to come and play for NBA, Drazen...

Like you said I am not comfortable yet, still learning a lot ,but maybe one day I will try own business just not yet. Thanks for offering help. Yes i always stop myself and go back to basics when I...

Wow,man congrats to you,wow. You should be proud of your self. I was in army to , three and half years in war thorn country,dont wanna say name for privacy. I have stragled with ptsd and ****, did...

I know the feeling my brother, got in the states in 98 , did not know a word of english, went to school for english eight monts later got me a job in the factory they closed the doors and by law had...

We do open sistems and put valves, piercing valve,saddle valve or just regular valves. Somethimes just suction side,its easy,just be carefull with brazing not to plug lines cause they are so small....

I all ready did, all i need is post number count . I am allready approved. Cant waith

Yea I understand that,with txv and other controls,beer can can't be used. Ambient + 30° gets you somewhere but cant relay on that. I'm just wondering what other techs think about that and getting my...

Many old school guys told me that when checking or charging sistem I can use ambient+30° rule to charge unit, they even said just look suction line and when it starts sweting it is good. What do you...

Using a red dye would solve the sniffing refrigirant problem,even though I personaly never heard of it. Havr to add something about misteriously missing refrigerant. We have one 50ton unit sitting...

yes they can be jerks big time, my firs boss owner of a small companie,told me to go yearsvago on the roof and clean some coils,metal roof by the way, also he told me to use and by actualy to go and...

I had a problem with one of our meat cooler compressor not running,but after furder investigation it happen to be just capacitor,after a quick change it started right up.

Try to find big company that can aford you riding on truck with anothet tech,stay away from small micro businesses, they will eat you alive expect that you know everything and when they find out you...

Having a degree wont guaranty you a job or 100.000 dollars a year,and eployer will choose guy w two years field experience over you. Having said that ass. Degree will show out there that you are not...

To all new members, you gonna find here a lot smart a...s ,do not get upset, get trough it and take what you can take from here if anything.

Hey Drazen where r u from? I am from former Yugoslavia.

How did you get licence,whitout any experience? What that licence means? Can u open your own bussines?

Thanks dandyme, it feels good to spend all my time on hvac issues than bouncing off from "real world" to changing a lock or ballast. Ready to move to another level.

You have to fill out form ,your name email,your education,epa card and have to make si many posts here, thats what i am doing right now its pain but they wanna protect our
Trade and avoid people...

Hey im nnewinthefield, but im not, i been around for seven with school nine years,just got new job to do true hvac service,not just building maintinance, it s gonna be good