Question about Honeywell Air Conditioners

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Hi my oil furnace keeps comming on every 10min the system is 1 year old and i just installed a new homeywell thermostat and set the gauge at 50 and the temp. is 80 that is way to hot in here.

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Cut the unit off it sounds like it is tripping on high limit this could be dangerous.
Take the wires off of your primary control and see if this stops the furnace. the wires should be marked t and t Post me back with details

Posted on Nov 28, 2008

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Havc thermostats


I will assume you did not write down what color wire you took of each letter on old thermostat? Sometimes color of wire doesn't matter as some installers will use whatever color. If you noted where each wire was on old thermostat, just put same color wire to same letter on new one. Under normal situation. y is for compressor (cool) G, is for fan (on AC) , RC is 24 volts from transformer for AC side, RH is 24 volt transformer from heat/furnace, and W is for other wire from furnace, is furnace is only 2 wire system. Was there any wire connected to A on old thermostat?

Apr 11, 2012 | Air Conditioners

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Installed a new Filtrete thermostat on a new Carrier high-efficiency furnace. I followed instructions exactly. It doesn't work. What did I do wrong? Furnace was installed in December. Broom handle...


Hi smargyle,

Welcome to fixya!

I can provide you with diagrams for the old Carrier therm and for the new Filtrete therm. But, I would need to know what the model numbers are for each therm plus how many speeds AC you have.

Please reply back with that information and we will get your AC back in working order.

Thanks,

Handie Andie

Jul 22, 2011 | Air Conditioners

1 Answer

I had a Honeywell Thermostat RTH8500 installed by a pro to run Heat / Cool electric heating WITH central air conditioning. Problem : When running on cool Fan on auto ,it work OK but sometimes when the...


Is this a new hvac system? A new furnace can work differently than your old one. Does it shut off after a minute or two or continue to run? If it continues to run then call that professional back and let him fix it. If it shuts down after a minute or two then it is a feature of the new thermostat to squeeze all of the cool it can from the a/c coil and ductwork.Some of them have settings that you can adjust for blower delay on and off, read the manual that came with the t-stat and see if it does.

Jun 16, 2011 | Honeywell Air Conditioners

1 Answer

I am installing a totaline progammable thermostat, the old one is a rheem, i hooked the b wire to the b terminal the r wire to the r terminal the g to the g terminal and the y to the y terminal the e l and...


First off, make sure that the wires you are connecting at the thermostat match the circuit board of the unit. It is good practice, but not always followed to do a "1 for 1". To answer your question, W2 is simply when there is 2-stages of heating. If your furnace does not have 2-stage heating, then leave it empty on the t-stat. "C" is common. Common is neutral, so it should have continuity to the ground or L2. If your old stat did not utilize this, I wouldn't worry about it, unless the new stat is a touchscreen and constantly lit stat. Just keep this in mind. W-warm (heat), Y-cooling, G-fan, R-hot (main 24v power from furnace to thermostat), C-common (not always required), AUX (auxillary, if there wasn't one used on your last furnace, I wouldn't worry about it.). X may have been a common, or a dead terminal.
Bottom line, if you open your furnace to see the circuit board and where the thermostat wire connects, and match above, you should be just fine. Make sure you turn power off prior to opening the furnace, and when landing the wires on the stat. You could inadvertently blow the 24v transformer.

May 08, 2010 | Air Conditioners

2 Answers

Gas Furnace will not start when outside temperature rises to 50F


There is a pressure switch near your draft inducer motor that needs to close when draft inducer motor is running. Verify that the switch is closing. If it is not closing, you might have a problem with either the switch itself, or there could be some sort of blockage in your flue. I would start with the switch first. This switch has to "prove" before it will allow anything else to happen. The loud click could be from your switch or your gas valve. If the switch is closing and nothing else is happening, it could be a problem with your gas valve or HSI.

Mar 12, 2010 | Carrier XHB123D X/Y Series Heat/Cool Air...

2 Answers

My carrier a/c compressor unit won't start. it just goes ''click-hummmm-click''.installed new filter-old one fairly dirty.both circuit breakers on.furnace blower fan on.new batteries in thermostat and temp...


Sounds as if your compressor has locked up. 2 things to do. 1`) get a hard start kit from an a/c supplier compatible with the volts on your system. makie connections to the existing capacitor as directed in the kit. If that doesn't cure problem you need a new compressor

Jul 07, 2009 | Air Conditioners

1 Answer

Cannot get new thermostat to work


didn't wire up correctly or if purchased a digital one didn't set up correctly, look at the instructions and should tell you how to set t-tstat up or if you have to remove or move jumper.

Apr 23, 2009 | Air Conditioners

1 Answer

Code 32 when wind blows


Hi and welcome to Fixya. I believe that the wind is affecting the draft. What I would recommend is to install a cap on the flue that is similar to a weather vane in that it rotates to block the wind from creating a downdraft in the flue. Some times depending on the direction and strength of the wind it will come up over the roof peak and then down the flue. A regular fixed cap may work too. You should be able to purchase one at your local hardware store. Please let me know if this was helpful. Good luck.

Jan 25, 2009 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

I've replaced my very old (mercury) Honeywell thermostat with a new one (round, Model: YCT87K1011), but I can't get it to control the temperature. If I connect the two wires one way, the furnace comes on...


Hey John, man that ole T87 has been around for a hundred years and I have installed many of them, but I cant remember the letters on the wiring. Seems to me that it is R-W-Y, any way you will use the R and W. I have a t87 at home still in the box and I could wait till I got home to help you but Im sure its the R and W terminal. Dont forget to set the heat anticipator. Set it the same as the current value of your gas or oil valve.

Nov 06, 2008 | Honeywell Air Conditioners

1 Answer

Amana Air Command 80, 20 years old. Electronic ignition. Furnace does not start. Good power to furnace. Themostat properly set. Where do I start looking? Bob


Hello Bob,
Welcome to fixya,

You said, Amana Air Command 80, 20 years old.
Electronic ignition.
Furnace does not start.
Good power to furnace.
Thermostat properly set.
Where do I start looking?

Sounds like you possibly have one or more bad jets if the unit is a gas furnace!
Let me know how it goes.
Huuum

WOW, listen to this story!
I understand you are looking for the solution to fix your furnace your self.
But I want to tell you my story about my smart wife and our furnace.
When we moved into this house the furnace was 20 years old and she suggested that we put a new one that it will save us money.
I laughed at her and replied if it's not broken why fix it!
Six years later it finally broke down and I replaced the whole furnace and central air unit with a new one.
Our utility bill went down $100 dollars a month!
That's $7200. that I lost over 6 years due to not respecting my wife's power of reasoning!
If you can afford it or can get financing replace any unit 20 years old and it will pay for it self.
Can you imaging $1200. a year for 20 years is $24,000 dollars I'm saving with a new and efficient unit.
Do the math!!!!!!!!!

Thank You,
Huuum, Hope I gave you some good fatherly advice.
Please remember to leave a rating


Oct 12, 2008 | Amana Air Conditioners

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