I purchase a honeywell programmable theramostat last night.
And try to replace my old analog honeywell theramostat.

As I remove the old one. I have 4 wire coming out of the wall R,W,Y, and G.
I had hooked everything as according to the diagram. Figure 2.3.6.

What I have work, is the furnace is working. But the A/C is not working.

For my house in and a central heat and cool system... it said on the manual for follow step 4 and 5. But, my question in more concern on the diagram about the relay for each setting. Whick there are no relay come with the units.

Should I just JUMPS the Wire R,Y,G for A/C and Heating R,W?

Help

RE: to the early post..

Before my installion of my old units. Is that everythings is working fine.
I just wanted to upgrade my old analog to more energy eff. System.

Rc should be Jumped to Rh and this becomes R.

The relays that the manual speaks of are inside of your HVAC system. One for the fan, one for the outside unit and one for heating.

KeepitSimpleStupid-> Right, I have done that Rc and Rh is jumped. And the R go to that slot. And keep it as default and the Jumper is on HG setting.

HG setting would be correct

Does the fan come on inside?

If the outside unit does not come on, then there is a real possibility that you could have blown the fuse/breaker for the outside unit. This would be a large double breaker. This can happen if the power was not turned off for the AC and the heater. They are usually separate breakers in your case.

KeepitSimpleStupid-> yes the fan dose turn on.
But, the A\C dose not turn on.

I test the votage on the R and Black wire on the A/C unit and it dose get power.

But, you what I don't get to test the Fuse..

Thanks.
I follow up with you later this afternoon.
I try that with a votage test for conutiy?

The outside unit is real sensitive when it's turned on and off quickly. In the electronic stat's there is a delay on break timer that will not allow the unit to turn back on unless it's been off for 2 to 5 minutes.

If you have fuses make sure you replace them with a time delay variety.

Bet you didn't turn off the breaker to the HVAC system before you replaced the stat?

KeepitSimpleStupid-> is that a # that I can call you for step by step.. I don''t wanted to burn down the hole house...

Not too sure what your afraid of?

I'm assuming you have fuses and not breakers for electric in your house?

If you wish, you can send me your fist name and telephone number via PM (Private Message) and a good time to call with your time zone (Eastern, Central, Mountain, Pacific time) tomorrow.

KeepitSimpleStupid-> your right one of the fuse is gone..
Now I have another problem.. everything good.. with the thermostats and all.
But the fan on the AC is out won't turn. I think the motor is dead..
Any remendy where can I get replace parts for my AC Units?

Told you!

The outside unit fans also have a capacitor. They die because of age, typically. You need to check the fan to see if the shaft is frozen or has a lot of friction. If you can give it a slight push and it runs, then suspect the cap.

Without a capacitor testor, it's difficult to rule out which part is bad.

You can remove the motor and fan and take it to a supply house and they should be able to give you a universal motor and a capacitor. You also need to get the direction right. Face the shaft and then determine if it's clockwise or counter clockwise.
The make, model and serial number will help too. Always get a new capacitor when you buy a motor. Pulling the fan blade may be difficult too.

Now the fun part. The AC unit probably came with a 3 wire capacitor where one section is for the compressor and the other for the fan. The replacement motor can come with 3 or 4 wires, so you have the additional problem of putting in another capacitor and changing from a 3 or 4 wire system. Some replacement motors are also reverseable and this will also add complications.

There are online suppliers too.

KeepitSimpleStupid-> do you thinks it better to go to home depot or sear and have them replace the whole new units.
The down size the cost.. $3000+ so, that what I afraid of with a 12months term.
Anyhow my email. [email protected]
And cel is 301-675-1256 for
So, tell what would you refer I do.

I cannot answer that question at all. I have no idea of the age of the unit or anything or whether you want to take advantage of the tax credit or whether it makes sense to replace heat as well.

I did, however, find this site which basically shows your looking at $150 or so, if you do it yourself. The site is neatly laid out, with install instructions, etc. The capacitor is under accessories.

Replacement Motors

When replacing HVAC systems, you need to get estimates from at least 3 contractors and don't necessarily go with the lowest bid. Each one may suggest multiple systems.

The energy rebate is tough because it applies to very high efficiency units.

Keepitsimplestupid-> got a friends to look at the AC.. He replaced the breaker on the AC and the capacit( a small little retangle box next the breaker. It was working fine.. suddenly it went out again..
He thougt that is the thermostats. So, he replace that.. and still it not working.

I told him it could be the fan. He said that the fan motor sound good. And it could go on for 2 more year.

He thinking that is could be the AC compressor.. it not circulating or could be clog. And the fan is not turning..

What do you thinks it could be the problem.
It got power. Once you push the breaker down. The fan should turn. But, did not. And all the line from the breaker to the fan, and the compressor got power.

??