Question about Honeywell Heating & Cooling

1 Answer

My old thermostat has four wires. Black, brown, yellow/green, and the blue taped up. Which coresponding numbers in my new thermostat...honeywell THR830TUK do the different colours go into? PLEASE

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Honeywell Master
  • 43,501 Answers

Hi,

Here is a list of each common terminal and what their commonly used for. Alsolisted is what colors are commonly used. NEVER ASSUME these are what youhave. Verify all your wires by following each to each piece of equipment. Thiswill help you to be able to match your equipment with the terminal.

Here is the rest of the tip that I wrote...

Thermostat Wiring and Terminal Designations
heatman101

Posted on Apr 10, 2011

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Trying to replace honeywell T8001C thermostat with new honeywell RTH7600. The old had a brown not used & a blue. On the new unit not sure where they go. Hooked it up with red,yellow,white,green &...


Red is usually hot side of transformer,yellow is for the a/c compressor,white is for heater,green is for the blower fan,now the blue could be energize for heat or the common side for the transformer,brown can also be the common side of the transformer. It sounds like you need the blue wire connected to the common side for the thermostat....but be careful. Some units use this as a energize wire and are not a common. I would find out what furnace model you have then look online and double check what this wire is or you could damage the new thermostat and/or the 24 volt system on your fau. And also always have the power to the unit disconnected so you do not ground a circuit.

Oct 03, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

Honeywell RTH2310 heating while it's supposed to be cooling


ok to start with if you have a heat pump and not ac over electric heat depending on type but most will be wired as
red to r jumped to rc y to yellow this turns on compressor g to green this turns on fan w to white or brown for electric heat strip or em heat o to orange reversing valve energised in cooling switches from heat to cool or orange to b energised in heating c blue for common
you will have to look at your indoor unit and out door unit to verify what collors the contractor used when they wired it up hope this helps

May 31, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

Updating old honeywell thermostat with a new honeywell thermostat


check in the unit heater to see what is hooked up most only need to have red from transformer white to call for heat and green to make the fan run in man and somtimes common usually blue or black

May 09, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

I need a wire diagram of a central heat and air with a heat pump


W- White (heat)
Y- Yellow (condenser)
G- Green (Indoor fan)
C- Blue (Common 24v)
R- Red (24VAC)
O/B (Only needed if system is a heat pump)

May 07, 2009 | Honeywell Heating & Cooling

1 Answer

I have a carrier air/heating unit with pump. It has 8 wires. Brown,blue, white, yellow, green, black, orange,and red. I'm trying to install honeywell thermostat. The wires from my unit are suppose to go...


Turn the power off to the air handler. Open the control cover. Write down what color wires go together at the wiring terminal. All 8 wires are probably not used.
Post the findings here.
In most cases,
E= brown-emergency heat
AUX=white-auxillary heat to supplement HP
Y= yellow-to compressor for heat or cool(hp)
G=green-indoor fan
O-orange-reversing valve on HP when energized in COOL
L=t-stat light(probably not used)
R=red-24v incoming power
B=black-reversing valve on HP when energized in HEAT
C=blue-common wire for 24v
Only one of the "O" or "B" will be used. Not both.

Apr 27, 2009 | Carrier Heating & Cooling

2 Answers

Heat will not shut off


Take white off of Aux, and attach it to L

Feb 16, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

Replace three wire thermostat with four wire thermostat


From the two red and two black wires (and the specs in the pdf), your new thermostat sounds like it's designed to directly control the line voltage (120 or 240) to the heater. That's the usual way baseboard heaters are controlled.

Could your wires be red, black, and (old, yellowed) white, the standard colors in a 3-wire power cable? Just the red and black should be enough to control a 120-volt heater so I don't understand what the white would have been used for. If it were my heater I'd take off the cover(s) -- with the power off, of course -- and find out what those wires actually connect to.

Jan 26, 2009 | Honeywell Programmable Thermostat Heater

4 Answers

Replacing thermostat


What is the blue hooked up to now?

Jun 07, 2008 | Honeywell Electronic Programmable...

1 Answer

Changing a room thermostat a potterton to honeywell t6360


I think I've done it - but don't take this as absolute truth.
For the Honeywell T6360B the original Potterton wiring should be rewired as follows:
Brown [Live] goes to terminal 1; Blue [neutral] goes to Terminal 2 and the yellow/green [which is not an earth but a switched live - i.e. gives live to the heating system when the thermostat clicks in] goes to terminal 3.
Obviously all done with the power isolated and when it was switched back on we had heating again :o)
It's been on over two hours now and all seems fine.

Jan 13, 2008 | Honeywell Programmable Thermostat Heater

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

411 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honeywell Heating & Cooling Experts

Bill Long

Level 3 Expert

587 Answers

paulcarew

Level 3 Expert

2454 Answers

Brandon Berry
Brandon Berry

Level 2 Expert

407 Answers

Are you a Honeywell Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...