Hello Guys

I am trying to install a new Honneywell RTH6300B but I am a litle confused

I have the following wires

Yellow
Red
White
Green and
Blue

Where do I put the blue wire?


On the terminal I have the following

G
W
Not Used
Y
R
Rc


I am confused when I purchased this unit I was told that anyone can get thos unit installed. I have noticed on my older thermostadt that the BLUE wire wasn't attached, I also couldn't see on the old themsostadt where each wire was connected to.

I need help before paying someone $300 to plug in wires.

Any suggestions are highly appriciated.

Thank you

The "not used" terminal is most likely a C terminal(common). Put the blue to c, and make sure to hook the blue wire up to c at the furnace board. Let us know if you have more questions about this. We will do 0ur best to help.

Hello

When you say "put the blue to C" what do you mean by that? The connections I have aviabile on the new therostadt are G W Not Used Y R and Rc I don't see a C to connect the blue wire.

Thank you

W is not used?

Does this t-stat say battery or 24 volt powered?

I have a White wire coming out of the wall. I am trying to figure it out where each wire goes.

I would assume that:

W - White
Y - Yellow
R - Red
G - Green

When I put the BLUE wire to Rc My AC starts working and the heat at the same time. When I leave Blue out and connect the jumper to R and Rc I can't get the AC to turn on.

I am confused

OK, if there is no c terminal. Just leave the blue unhooked. You should be fine. The blue wire was not hooked up to the old thermostat, so it won't need to be hooked up to the new one. Just hook red to r, white to w, yellow to y, green to g

There should be a jumper between r and rc, just leave it in and hook r to r.

If you have a terminal that says not used, then your thermostat does not require a common. Just hook the wires up to the same letters as the old thermostat and you will be set. Please keep me posted.

mygirlsdad77 - I tried that and my AC won't turn on. Please see post above.


JoshDta- It is battery powerd

Can you post a picture of your thermostat leads? And possibly a pic of the area where your thermostat wires hook to your furnace?

I can take some pictures of the thermostadt and the wires that come out of the wall, I';m not quite sure about the second thing to the furnace if you can hold on for 5-10 mor min I will have it for you thank you

Here are the pictures

http://www.bosanci.net/problem/DSC08963.JPG

http://www.bosanci.net/problem/DSC08966.JPG

OK just wire it

r- red
y-yellow
w-white
g-green
Rh-rc jumpered.

Do not use the blue.

Then touch r to y with a piece of wire or pair of needle nose plyers. If the ac works then you probably need to do a installer setup on your stat. if it does not work then you may have blown a fuse at your furnace.

Ok I connected

White - W
Yellow - Y
Red - R
Green - G
RC + R Jummped

Then I turned on the power to the furnace and touched Y + R with pliers, but once I turned the power to the furnace, the furnace came on right away. When I put the cover on to set the temperature and to select AC nothing happens I can hear the furnace working but no AC. The fan is blowing air but no AC. The unit outside is not working. I also can't turn anything off from the thermostat I have to flip the switch to the thermostat. When I select OFF on the thermostat the furnase continues to work. Im not sure what is going on.

I have to turn it off by the main furnace switch.

When you say the furnace came on as soon as you turned on the switch, do you mean heat came on or just the blower? What brand furnace do you have?

Just the blower no heat

Name is albert arna

When I turn on the Switch the blower comes on after a few minutes heat comes on and ater a few minutes it comes off. I see no name on the furnes except for Weis...

Right now the fan is blowing, and heat comes on and off every few minutes, termostat is set to Cool.

Some furnaces have a 1:30 blower on period as soon as you turn the power on have you ever noticed this before. Just a thought. If that is not it sounds like you may have a wire acidently touching anouther somewhere on the t stat

OK does you t-stat have a installer setup? Sounds like you may be set for heatpump instead of gas furnace!

Hello THank you for the help

I will have to call honnewell tomorrow, when I checked the installer setup I don't see half of those options they show me in the book. Im not sure that I need all of those but the once I can see look to be correct.

You need to look at the system type option.

I think that one is your problem, shold be on conventinal heat with ac

Well I think I got everything correct

There are 4 screen that match my setup

1. Use setting 1 if you have Gas, oil or electric heating with central airconditioning

3. use setting 0 if you have a gas or oil heating system

5. Use setting 5 if you have a standard gas or oil furnace that is less than 90% efficiant.

14. Use setting 0 if you want your temperature to be displayed in F.


Those 4 setting I got on my termostat saved but not able to turn on AC

OK set 1 to 0

Set 3 to 0

Set 5 to 3

1 is on 0

And 3 is on 0

5 is on 5
And 14 is on 0

OK then the t-stat shold be set up fine. Lets see what else we can try

Was yellow used on the old t-stat?

Yes yellow was used in the old one every color except for blue

OK take the front of the t-stat off so you can see the wires. Then we will do some tests

Taken off I can see the wires

OK with a pair of needle nose plyers, or a wire touch between r and g and see if the fan comes on.

Well here is the problem, I can't turn off the furness/fan from the t-stat, I have to turn it off by the switch, now when I do that and touch those wires the fan can't come on or can it?

With the t-stat off so you can see the wires when you turn the furnace switch back on nothing should run if it does then you have a problem at the furnace.

Yes when the t-stat off I can see the wires, I go back and turn on the switch the furnest starts working,

What could be wrong with it?

Take the red wire off the r terminal and try it then an tell me if it runs

THIS IS GETTING OUT OF HAND GUYS!

Furnace type is Gas with AC. Correct?
Blue wire was not used. Correct?

XXXX Yellow Red White Green
Yellow___ -
Red__________-
White_____________-
Green___________________-

I want you to complete this table by connecting only two wires. The "-" ed entries don't complete. The "_" is there because AMHD reduces multiple spaces to one space.

One of the following should happen. Put the number in the proper place.

1. Nothing happens
2. AC unit alone turns on
3. Fan turns on
4. Heat turns on & Fan turns on eventually

With the red wire off the furnest runs when I turn on the switch

KeepItSimpleStupid

I don't understand what you want me to do

The heat or the blower runs?

JoshDta

When I disconect all the wires and turn on the furnes on the on/off switch it still turns on and runns

The blowe runns right now, I don't feel any heat

Still runns no heat yet

Go down look in the bottom door and see if your unit is flashing a fault code. There should be a sight glass

I don't see a glass door everything is metal and it's enclosed, the only door I can open is where you can light up the gass

Well the control board shold be in the lower door with the blower inless you have a down flow furnace. Then the blower will be on top.

Well I am in a condo so I have a small room, the furness is on the bottom and the blower is on the bottom too, I know that because I took the filter off and I can see the blower.

OK no control board there?

How does a control board look like ? I see the blower through the filter opening on the wall.

No id don't see anything, the blower is exposed nothing around it has some wires connected to it that is all.

http://www.myhvacparts.com/Catalogue/Printed%20Circuit%20Boards/Nordyne%20624631-A%20control%20board.jpg


Mounted to the front of the blower.

Turn off furnace.
Take all wires off the stat.
Tape the blue wire.

Connect two wires at a time.

Connect yel to red; Turn on furnace. What happens; turn off furnace

Connect yel to white; what happens; turn off furnace

Connect yellow to Green; what happens; turn off furnace.

Keep filling out the table with the number corresponding to what happens.

I don't see that in the fron of the blower

Here is what I see

http://www.bosanci.net/problem/DSC08967.JPG

http://www.bosanci.net/problem/DSC08968.JPG

What's the "jump rope" for?

Are you referring to the white bcable that hangs? That is my cable for TV TV cable

I connected Yel to Red- turned the furness on - Furnes turned on - I turned the furnes off.

The same sequance happened whan I connected yell to Green, Yellow to White

It doesn't matter if I have anything connected if I turn the furness on it turnes on and blows.

I was.

I think the rest of the guys are trying to see where the tstat wires connect to. If you go that route, you have to follow the wires.

If your confident that blue wasn't used, then filling out the table will work.

There may be up to a 5 minute delay on the AC unit, but I doubt it.

You can post attachments directly using "Go Advanced/Manage attachments"

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When I took the old tstat off the blue ire was taped with electric tape. Im not sure if the furness should turn on when all the wires are disconectted?

Wha about the rest of the table?

Like red to yel, red to white, red to green etc.

Did you wait long enough to see if the burners ignited.

The furnace should not turn on with the wires of the tstat disconnected. If it does, then there is something wrong.

If the furnace turns on with no tstat wires connected then,

1. The wiring is faulty from the tstat to the furnace -or-
2. The blower relay is stuck closed.

The furness turns on while all the wires are disconected from the tstat

How can I fix that problem than?

You have to disconnect the wires at the furnace.

Wires disconnected at furnace
1. blower turns on (see more troubleshooting)
2. Blower off; wiring issue

More troubleshooting

1. blower relay
1a If blower relay mounted on control board - replace control board
2. Limit control

Ok well I think that I need to call someone to take a look I don't know anything abiout that

Thank you guys for trying to help

I really appriciate that

I think you made the right decision to have it professionally looked at. Your pics indicate that the unit has not been serviced for quite some time. There is too much dust.

In your last pic, I see that your thermostat wires are connected directly to the transformer(left of the gas valve, mounted on a four by four metal box. Wright down where these wires go, and unhook them all. Now see if blower runs when power is turned on to furnace. Im betting you have a short in your thermostat wires between stat and furnace, or you have a bad transformer. At this point I agree that you would be best to call in an onsight tech. However if you disconnect the t stat wires from the transformer in furnace, it will help us gain a little more knowledge about your problem. Good luck and please let us know how things turn out.