Home AC HELPPPPPPPP!!!!!

OK, so here's the situation.

I got the bright idea to relocate the thermostat for one of my home AC units. Basically to the other side of the wall that it was mounted on.

Before I disconnected it, I took a picture of the connections to make sure that I put each wire back where it came from.

I rerouted the wires, and connected the thermostat up on the other side of the wall. The thermostat reads "cooling" but the unit itself will not switch on.

I've checked the breakers, they are fine (switched them off and on a couple of times). I've gone up on the roof to check the quick disconnect, and it has no fuses in it. I do have 240 volts at the quick disconnect.

I've double, triple and quadruple checked my picture, and all the wires are where they are supposed to be in the terminal block. Also checked to make sure that the connections are all tight.

At this point, I am at a loss. Could there be fuses somewhere else within the unit itself? I am looking for ideas.....

?????

Have you tried putting it back on the other side of the wall again and reconnecting the wires the way they were? Maybe it doesn't wanna move.

Is there an outlet where the FAU is that maybe has a breaker on it? A gfci.....or whatever theyre called.

There is an outlet up there (not sure what it is for), but it has no breaker on it. Plus, I have 3 units on my roof and only this 1 is not kicking on.

Scouter, did it lose its programming when you unhooked it possibly?
Hopefully one of the pros from Desert Aire sees this and walks you through it.

Found out the hard way on my Honeywell wifi thermostat that if you pop it off the wall/base while it is not in the "off" setting, it fries the thermostat. Afterwards, it looked/seemed functional, but did not activate the system.

I've swapped this thermostat out with one of the other ones, and it works the other AC, so it's not fried.

I also hooked the swapped out one to this AC and nothing....

There has to be a fuse somewhere that got blown or something....

Did you unplug the furnace before you started moving wires? I fried a motherboard not doing that.

Leave a window open and come over and have a cocktail. It's beautiful out and we're watching my Aggies. I'll make you a drink to forget about your A/C.

I think Daytonababe has the best solution to your problem yet, you better take up on that offer hahaha! :drink

DaytonaBabe said:

Leave a window open and come over and have a cocktail. It's beautiful out and we're watching my Aggies. I'll make you a drink to forget about your A/C.

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We will be over soon. Waiting for a call from work.... Are you going to watch the band at Martinez tonight?

How many wires did the thermostat have , you probably shorted out the control transformer fuse ( Common wire touched the red power wire ) on the circuit board. Should be a little 3 amp car fuse. Find that fuse depending on what you have its in the furnace or if its a roof top unit its up on the roof

scouter said:

We will be over soon. Waiting for a call from work.... Are you going to watch the band at Martinez tonight?

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Yep - see ya there!

DaytonaBabe said:

Leave a window open and come over and have a cocktail. It's beautiful out and we're watching my Aggies. I'll make you a drink to forget about your A/C.

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Youre gonna need eXtra drinks too if your boys can't catch them Razorbacks.

RSoscia said:

How many wires did the thermostat have , you probably shorted out the control transformer fuse ( Common wire touched the red power wire ) on the circuit board. Should be a little 3 amp car fuse. Find that fuse depending on what you have its in the furnace or if its a roof top unit its up on the roof

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Now this helps, Thank you....... Confession.... when I disconnected the thermostat from it's original location, I did not shut off the breaker (lesson learned). I did see 2 wires cross, and a little spark. (not sure which 2 wires crossed).

The thermostat has 10 wires connected (see pic below). Our house has a controller system that allows us to control everything from our phones or iPads, so some of the wires are for that.

I assume this fuse must be somewhere in the unit (it is a roof top unit), so I need to take off a panel to find the board....

Guess I'm going back up on the roof tomorrow....

HOOTER SLED- said:

Youre gonna need eXtra drinks too if your boys can't catch them Razorbacks.

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Nervous... having extra cocktails instead.

I'm just seeing this but I'm guessing you toucjed your "r" and your "c" wore and blew the fuse on the control board. It should be S simple as changing the fuse on the board in the unit (3 or 5amp blade type fuse). Of that doesn't work hit me up and I can walk you through it.

Riverbound said:

I'm just seeing this but Amy guessing you toucjed your "r" and your "c" wore and blew the fuse on the control board. It should be S simple as changing the fuse on the board in the unit (3 or 5amp blade type fuse). Of that doesn't work hit me up and I can walk you through it.

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Billdo beat me to it.

I have no idea what kind of system you have so if you have a package unit in the roof, the fuse and control board will be there. If it's a split system (sperate indoor and outdoor units) the fuse and control board (if it has one) will be in the inside unit. Both types of systems could have an automotive type 3 amp blade fuse on the board, a resetable breaker on the transformer, a wired in-line fuse, or if you're really lucky, there could be no fuse protection at all and you fried the transformer (unlikely and kinda rare).

Btw. There's a phrase I teach every new Hire.

RTFM

Read The Fucking Manual!

First step is always to kill power to the unit to avoid situations like this.

DaytonaBabe said:

Leave a window open and come over and have a cocktail. It's beautiful out and we're watching my Aggies. I'll make you a drink to forget about your A/C.

Click to expand...

Ugh...... Ended up doing this ^^^^^^^^^ (A drink or several from DB) last night. Overslept this morning and missed our "Sunday Funday" fishing trip.... Oh well, we are rallying now and DB and Mr. DB are supposed to come over for breakfast and the Cardinals game..

Riverbound said:

Btw. There's a phrase I teach every new Hire.

RTFM

Read The Fucking Manual!

First step is always to kill power to the unit to avoid situations like this.

Click to expand...

Ha, Ha..... Early on in my career (30 some plus years ago ), I am an IT guy, when ever any one asked a technical question, the answer was always "RTFM it".......

Going up on the roof soon..... Thanks everyone.

scouter said:

Ugh...... Ended up doing this ^^^^^^^^^ (A drink or several from DB) last night. Overslept this morning and missed our "Sunday Funday" fishing trip.... Oh well, we are rallying now and DB and Mr. DB are supposed to come over for breakfast and the Cardinals game..



Ha, Ha..... Early on in my career (30 some plus years ago ), I am an IT guy, when ever any one asked a technical question, the answer was always "RTFM it".......

Going up on the roof soon..... Thanks everyone.

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If you need help when up there hit me up. Hopefully it's an easy quick fix.

Success......

They should really label the panels on these things to say "Hey dumbass, all the important shit is behind here"..... Took 3 panels off before I found the circuit boards....

Fuse was blown. I didn't have a 3 amp, so I put a 5 amp in. Will pick up some 3 amps when I am in town this week.

In the meantime, my office is nice and cool again.

Thanks everyone......

Riverbound said:

Btw. There's a phrase I teach every new Hire.

RTFM

Read The Fucking Manual!

First step is always to kill power to the unit to avoid situations like this.

Click to expand...

.

I put up a sign in my garage that's directed at my 30 year old "kid".

It sez