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Not the best picture....be gentle.

Hack picture

atleast they put it over the expected snow level???

We do have kits for working on pneumatics in our shop. Ive just never had to use them... I had this picture on my phone from awhile ago. Its kinda cut off, but maybe it will help you guys get an idea...

Thanks for everyones response. whec720 Its a steam coil, and a DX cooling coil. There is a return air transmitter and a supply air transmitter. They both come back to gauges that are on the main...

Ill start off my saying I have very very limited experience with pneumatics. So please be understanding with my lack of knowledge. I got sent to this building for the first time today, and not...

what is the voltage and mfd's on both caps in there??? something is sounding fishy. P.s. dont call that same company. Capacitors shouldnt cost that much

is the suction line at the outdoor unit iced over?

Brillant..:LOL:

So quick to rule out the young techs... i bet "most" young techs could have passed your little examination.

lol but that is a funny story nonetheless

Thanks for all the replys...it was the board as i suspected. Due to scheduling i wasnt able to go back the next day. I told my thought to the other tech and he contacted tech support to confirm. None...

i appreciate the help and advice...im going to take another look first thing tmrw. Hopefully i can see the board all crispy on the back side lol. Either way i think we are going to try a new one. Ill...

that was my thinking...but wanted a conformation before i jumped to conclusions. Thanks for the help

This is kinda my first big rodeo with one...so far its winning. I think I have an idea, but dont wanna over look anything. Seeing as how i have this great resource at my finger tips i mine as well...

thanks! I do have some questions now if you can help. The IT guy said it tripped the breaker. He reset it and said it made a noise like it was trying to start but couldnt. I looked at the indoor...

Im looking for a schematic for a mitsubishi mini split model number puya18nha?? any help would be appreciated.

how much ya asking for it???

Will do. Thanks

Beenthere can you give me a run down of what your doing...i feel like im confused on his needs now

I dont know if im reading this right but ill give ya my 2cents...How i interpret what your saying is that you also live in the same building correct??? So the only time they are getting heat is when...

Ive heard of the samething...i know of one that burnt out two heating elements in the first two weeks of installation due to hard water.

my bad on assuming he had a stat that popped off like that..

i would say that would open the circuit....unless its a problem in the wall or the unit.

Hard to say without seeing the problem first hand...but to narrow down the issue the next time it cycles like that take the face of the thermostat off, and see if that ends the call. If that ends the...

-2 with a -20 windchill....its not very nice right now. But highs of 42 on saturday!

im getting 27 right out of the board...thats whats blowing my mind. It looks like schematically the ign is separate from the main board....is there anyway the main board could be causing this?

when i first turn the unit on...shouldnt the leds light or show signs of power?

Yea thats what i was thinking...but im 2 boards deep right now... i thought i got a bad one out of the box at first.

120v...i temporarily wired a different transformer in thinking that could be giving me fits too

I have not checked resistance on it...but i unplugged the hsi and checked the voltage coming into it. 27v when it should be 120v. This is why i figured bad board due to low voltage back feeding to...

Went to look at a rooftop trane ycd090d3hobb today that has been kicking my A**. The ign board was getting power. but none of the leds light up. When i put the unit into test im getting 27 volts to...

i dont use it because i worry about the dirt and oils on my hands while trying to answer the touch screen. Not to mention pipe dope and calks too.

Ive posted about this before, and here is the copy of my previous post. This problem seems to be quite common. Its all has to do with the humidity inside your home, and the dew point... the problem...

When your on low fire your gas valve isnt open fully, and your fan isnt running at full speed. Think about it rationally. 1st and 2nd stage are directly proportional. When it calls for 2nd stage the...

To answer the low and high fire question. Its not about efficency!! Its all about comfort. Your furnace has to be able to hold a temp of 70 degrees indoors on a -20 degree day. Since we dont have...

ohm out the hsi, and make sure its under about 150. (unplug it and put your meter leads on each terminal)

What do you have when you ohm the hsi out??

Haha that just made a great start to my day....thank you for the good laugh

some people just dont like it...m kilgore hit it right on the head. Change it out with a good media and you'll be more then satisfied

If its not a fly by night hvac business i would hope they would stand behind something like that...having three leaks is unexcitable work in my book. and why did 3 fittings take 2hours!?!? did he put...

I agree with beenthere....i would look into why your old unit is overheating before you snap and buy a whole new furnace. Secondly you are certainly in the minority having oversized duckwork. Ive...

Im not so sure why you are disappointed...heat pumps are set up to give you the highest efficiency. They are set to call for backup heat when they can no longer supply the highest efficiency to you...

This problem seems to be quite common. Its all has to do with the humidity inside your home, and the dew point... the problem you have is the glass surface is at or below the dew point for the amount...

please note...thats not just any old 8" elbow. Thats B-vent

I looked over the whole heat exchanger and to my surprise it all looked good...not to say it wont have future problems

I ran across this after getting a call complaining the unit was cycling blowing hot then cold air. Thought you guys might enjoy these photos.