Question about Honeywell Electronic Programmable Heat/Cool Thermostat - CT3300A100 Heater

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Thermostat honeywell th9421c1004 touch screen I need to know how to install it it has 3 prongs and the existing wiring has 4 green yellow white and red could you please help me

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TH8110 Honeywell how to program

Posted on Feb 21, 2008

That thermostat must be used with a THM5421C1008 Equipment Interface Module. The thermostat communicates with the module and the module is connected to the HVAC components.

Posted on Feb 13, 2008

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1 Answer

TH9421C1004 touch screen stopped working


Make sure there is 24 Volts between the R & Common wires connected to the thermostat subbase.

Dec 13, 2013 | Honeywell TH9421C1004 VisionPRO IAQ Total...

1 Answer

Blank Screen on thermostat


check your float switch. On your air hander you have 3/4 white pvc coming out of bottom of unit, where the water drains out. If you have a float and your drain line is plugged it will make your tstat go blank. vacuum the drain line where it comes out of the ground outside.

Jun 19, 2013 | Honeywell TH9421C1004 VisionPRO IAQ Total...

1 Answer

I have a FEQ1442es dryer. I need to change it from a 4 pronged plug to a three prong, as that is what outlet my condo has... Is there any special order etc. in which to attatch the connections on the...


The 4-prong plug has red, black, white, and green/yellow wires while the 3-prong plug has red, black, and white wires. The only difference is the green/yellow (ground) wire of the 4-prong plug which is attached to the dryer cabinet. All you have to do is connect the wires of the 3-prong plug in the same way the same wire colors are connected with the 4-prong plug then connect the terminal on the cabinet, where the green/yellow (ground) wire of the 4-prong plug is formerly connected, to the white wire of the 3-prong plug.
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Feb 12, 2011 | Frigidaire FEQ1442ES Electric Dryer

1 Answer

Can you take a dryer that has a 4 prog plug and put a 3 prong plug on it?


Yes, you can put a 3-prong plug in place of the 4-prong plug.

The 4-prong plug has red, black, white, and green/yellow wires while the 3-prong plug has red, black, and white wires. The only difference is the green/yellow (ground) wire of the 4-prong plug which is attached to the dryer cabinet. All you have to do is connect the wires of the 3-prong plug in the same way the same wire colors are connected with the 4-prong plug then connect the terminal on the cabinet, where the green/yellow (ground) wire of the 4-prong plug is formerly connected, to the white wire of the 3-prong plug.
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Feb 04, 2011 | Maytag Dryers

1 Answer

Need wiring diagram for Honeywell RCT8100


The old thermostat has a second stage heat which is W2. The new one doesn't have second stage heat.
The wiring your describing on the old thermostat is telling me you have a heat pump with second stage heat and the new thermostat is for air conditioning only. You will need to get a thermostat for a heat pump.

Apr 02, 2010 | Honeywell Electronic Programmable...

1 Answer

Wiring problem?


Hi,
Yes to everything!!
You have it figured out!!
Just make SURE that the blue unused wire cannot touch any of the other wires, it will wreck your transformer in a split second.!

I hope that this will help you to solve your problem!

Thanks for using Fixya!!

Heatman101

Nov 25, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

Wiring honeywell DT200(T6620B)


HONEYWELL WEBSITE:
Go to honeywell.com
Under red welcome sign
Bottom red highlighted box literature/image search
Type in thermostat model number
Click on arrow to right
Then click on the PDF files owners manual / installation instructions

Apr 11, 2009 | Honeywell Programmable Thermostat Heater

2 Answers

I'm trying to install a Honeywell RTH2310B programmable thermostat. I only have 3 wires coming out of the existing thermostat (the red wire was attached to both Rc and Rh terminals). The other wires were...


Your house might be older.  Are your receptacles two-prong, or three?
I would ignore the missing "G" wire, and connect Red to both Rc and Rh, and Y to Y, and W to W.

Jan 01, 2009 | Honeywell Focus 6300B 5-2 Days...

1 Answer

Manual Thermostat replcaement with Programmable Digital unit.


Hopefully there are markings on the old t-stat as to what terminal is what.
on the honeywell 8000 use the heat pump labeling and then the standard wiring would be
R- red
AUX-white
Y- yellow
B- O/B
C- black
G- green
There should not be a bare wire, it probably just has the insulation stripped back way too far.
You should probably open the furnace and compare the terminal label in the furnace to the wire color. normally yellow and blue pass through the furnace and are wire nutted to wires going to the outdoor unit. In the furnace the white wire will connect to the w or w1 terminal. also, you will need to set the Honeywell stat to have the following parameters.
170-7
190-1
200-0
other parameters that I did not specify, you may read the manual and make your own decision but I recommend factory settings for the other parameters

Jun 14, 2008 | Ruud UBHC Air Conditioner

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