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T-Stat Replacement I am trying to replace an old t-stat with a new Ranco ETC-111000-000. The old t-stats have no idea what they are they are old and rust can't read. The old ones are hooked up with only two wires, (where i used to work and bought these from we used 4 wires so im lost) The old one has a red, yellow, and blue dot on them. Yellow is on top, blue middle and red bottom which is common. I have a Blue wire hooked up to common and a orange wire goint to yellow dot(?) on my new t-stat wh


Answers :

You will have to trace the wires from the source, unfortunately, the colors may not be accurate. Do you have a 24v heat and cool system? I am going assume the answer of yes, as this is the most common. If you have something different, we will need to go over this again. According to the new thermostat, the red is the power, it will come from the low output side (24volt) of the transformer. Green is blower fan, it will go to a relay that turns the fan on when the thermostat is set from auto to on. The white is heat, this will go to the pilot/ gas valve etc. Last is yellow or blue, either color is for the cool. This goes to the control for the compressor, usually the contactor.

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T-Stat Replacement I am trying to replace an old t-stat with a new Ranco ETC-111000-000. The old t-stats have no idea what they are they are old and rust can't read. The old ones are hooked up with only two wires, (where i used to work and bought these from we used 4 wires so im lost) The old one has a red, yellow, and blue dot on them. Yellow is on top, blue middle and red bottom which is common. I have a Blue wire hooked up to common and a orange wire goint to yellow dot(?) on my new t-stat wh


You will have to trace the wires from the source, unfortunately, the colors may not be accurate. Do you have a 24v heat and cool system? I am going assume the answer of yes, as this is the most common. If you have something different, we ... Air Conditioners

I am replacing a White Rogers 1F58-77 with a Honeywell RTH2300. When I removed the old stat the wire colors are white, red, orange, green, yellow, and blue. G- green wire Y- Yellow wire R- Red wire W- White wire O-Orange wire X1- Blue wire I hooked up all the wires except the blue. Instructions with the Honeywell unit said not to hook up the blue wire if there is an orange wire to hook up which I did. The problem, when I light off the A/C (heat pump) the compressor comes on but the


Yes you did correct. Tape of f blue wire. On your thermostat you should have el/gas turn top el and fan should work Russ ... Air Conditioners

I have a Carrier 8000 weathermaker. Recently the blower motor began to run progressively slower and finally just bogged down. I replaced the motor, but the replacement motor has three speeds (red, blue and black wires) whereas the old motor had four (red, blue, black and yellow). Initially I hooked the new motor wires up to the circuit board the same way the old ones were, leaving an open spot where the old yellow wire was. New motor works, but at lower speeds, pushing less cool air. We liv


Found system was slowly loosing coolant through a variety of miniscule leaks in rusting part of condenser. Apparently coolant level had dropped sufficiently in the blower repair interval to where the system no longer functioned with adequate efficie ... Carrier Air Conditioners

I replaced an old mercury T-stat (York with model number 2TH11704024) installed a new T-stat (RTH6350). The wires that I I have are O (orange), G (green), Y (yellow), T (gray but not used in new T-stat), R (red), L (black), C (blue but not used in new T-stat), W (white) and L (black). I connect all wires with their respective colors except that I connect the W in the AUX (jumped with the E). After I finalized all connections, the heat pump unit (York with model number ETFB024S06A) did not


Did you shut the power off to the air handler/furnace...... before you installed the new thermostat??? You may have shorted out the transformer or blown the transformer fuse...... If you try to put the Fan switch on the stat to Fan ON does the fan ... Air Conditioners

Replacing the thermostat, took the old one off without marking the wires. Hooked it up by color and we get the furnace when we put it on cool. wires are green, red, yellow & blue (ground wire)on the wall. The new thermostat wires are red, yellow & green. Can you tell me which wires go where correctly?


The normal wiring for stats is white=w=heat,red=r=24volts,green=g=fan,blue=c=common,yellow=y=cooling.\015\012see what ties into your furnace board and match the terminals. ... Honeywell Air Conditioners

How do you hookup a universal hvac condeser motor the old one had a black wire,red and a brown wire plus the green&yellow ground the new one has a black wire a yellow then it has back connetor thats made in to the caseing acourding to the diagram on the side it has an A prong,an,B prong & a,C the A&B says its low &c says its high I hooked red to yellow and black to black do I hook the brown wire to C prong I traced the black,red&brown tre red &brown go to the capacitor When I hook the red t


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RTH221 honeywell thermostat install, hooked up blue wire from old thermo that hooked to C to o/b connection on new thermostat no work did I screw something up as old thermo will not work as well now. was not supposed to hook blue wire up I found out later on Internet. any easn fix, blown fuse??? etc. Thanks


Hi,\012maybe a blown fuse if it has one... if not then you blew the transformer...\012Check on the circuit board in the furnace or air handler for a fuse...\012if there isn't one... then you will need to replace the 24v transformer. ... Honeywell Air Conditioners

Replaced a ge condensor fan 3 wire with new dayton the wires are different...old fan has a wire connectort mouted to it orange,black yellow, the new one 2brown 1 with white stripe, purple, black, i have new 2 connect compacitor and a 3 connect compacitor( herm, C, Fan) where do i hook new the fan wires, and where do i connect the compressor wires.


The new ge fan requires its own capacitor, the brown and the brown/white go direct to new fan capacitor. black to relay (leg one of power) purple to relay (leg two of power. the compressor will have a wire to the relay and the other to the herm termi ... Air Conditioners

I have a Janitrol Heat Pump Thermostat HPT-18-60 and need assistance connecting my new Honeywell RTH7500D thermostat I have a Goodman Heat Pump System Indoor Unit Model#AWB24-05C REV D Outdoor Unit Model#CPLE18-1 Here is the wiring of the old thermostat Y-Yellow Wire G-Green Wire R-Red Wire O-Orange Wire W2-White Wire E-Blue Wire C-Black Wire Where should each of these be connected to the new thermostats terminals?


... Air Conditioners

Need to change a broken blower motor in RUUD central air unit. Old central air blower motor (GE electric) was connected with brown and orange wire to 15 MHD capacitor. Another orange wire from central air unit connected to orange motor wire on capacitor. Black wire from motor (Hi Speed) connected to central air unit. Blue and red wires not connected. New motor is an AO Smith FD6000A. Has Black, brown/white, brown, blue,yellow,red, white and black wires. Need to connect to a 5 MHD capacitor. M


On the motor should be a diagram detailing the wires. brown white goes to either side of the capacitor and brown wire to other side of capacitor. hi speed goes to normally open contact on the indoor fan relay and the wire designated common on the mot ... Air Conditioners

630515.331c Duo therm replacing an old Briskair 59516.531, My question is, I want to use the inside ceiling part with the switches and non ducted registers. There are wires for 120 volt and a 6 pin connector for the unit at the control box. How would I wire up the new unit to the six pin connector so I could use this set up. nw unit has 2 blue 2 yellow, black, red, looking at a wire diagram looks like the red and black need not be used, and the 2 yellows go to what they call load shed (????), w


... Dometic Rooftop RV Air Conditioner

I have a Trane Heater/AC unit no heat pump with a thermostat model 802AS32DAA that has seven wires. I am going to a five wire heating/cooling thermostat. What do i do with the two extra wires? old thermostat red wire-RC slot (24 V from A/C) white wire-W1 (???) yellow wire-Y (A/C Compressor) green wire-G (A/C Fan) black wire-B (?????) Blue wire-Y2 (????) orange wire-W2 (24 V to Furnace new thermostat therminals G Rc Rh Y/O W/B Y1 Can you tell me what wires to connect to each


From Honeywell : "If your old thermostat had Six or more wires, the replacement you have is Wrong!" ... Air Conditioners

Thermostat with 4 wires, red, green, white and blue; no yellow wire to connect to new thermostat


... Air Conditioners

I am replacing a white rodgers thermostat with a honeywell rth3100c. i have matched my wire as e (brown) to e w2 (white) o aux y (yellow) to y g (green) to g o (orange) to o l blank r (red) t r b blank c blank now i have a blue wire which was hooked up to the x1 on the old thermostat. where does this wire go?


Blue (C) or sometimes (B) should be your common wire. Look at your schematics and locate common. Your Brown wire is (E) and is emergency heat, white wire (W) is Auxilary Heat, green wire (G) is fan relay, red wire (R) is power, yellow wire (Y) is C ... Air Conditioners

Trying to replace my old t-stat to a Hunter 44260 t-stat, the old wirings are :Rc-Rh(jumpered), G,Y,W, O & B and the new t-stat has G,Rc,Rh,Y/O,W/B & Y1, i dont know where to connect the old wiring to new t-stat.?


It sounds like a standard gas fired heating system and electric cooling. Leave the jumper between the RC and RH and attach the red wire.to one of them it does not matter since they are jumped. Attach green to G attach the white to W attach th ... Hunter 44260 Set and Save 5/1/1 Programmable Thermostat 44260

Changing out an old mercury thermostat to a digital thermostat. The old therm. has Y=yellow, G=green, R=red, O=orange, C=blue, W2=white and E connected by jumper. Extra wires are black and tan. New therm. has W,Y,C,R,G,O,E. Any assistance appreciated


Y=yellow (a/c)G=green (fan)O=orange (reversing valve)C=blue (common)R=red (hot)W=white, jumper to E (emergency heat) ... Amana Air Conditioners

My dog chewed up the t-stat wiring on my outside a/c unit (compressor?). I purchased some t-stat wire at Home Depot and replaced the wiring. At the outside unit, I connected the new white wire with the brown from the unit, and the new red wire with the yellow from the unit. This part was still connected from the previous install, so I copied from how it was wired before. For the wiring to the house, this was disconnected completely by the dog, so I connected the new white wire to the white w


Hello,Yes there is a 3 amp blade fuse(same as in a car) in the blower unit,take off the door and it is plugged in to the(curcuit) board.Pull it out and slip a new one in.That will restore the control voltage.Your repair sounds correct.Some times ther ... Air Conditioners

I currently havea honeywell thermostat model# T8112D1005 (1) 0347 PF2A and a replacing it with a Honeywell TX1500E. My only issue is my old thermostat has a "R" wire that was connected up to it and my new unit only shows two options "RH" and "RC" it does not have an output of only "R". My question is where do I hook up the wire marked "R" from my old unit or do I even hook it up? The instructions mention if replacing a TM-11 to tape off the R wire and hook up the B wire to the B terminal. Im nit


... Honeywell Air Conditioners

Wiring compressor Replaced defective fan motor on my a/c unit. Old motor had three wires: black, yellow, brown. New generic motor has black, white, brown, brown w/white stripe. This new motor came with a new two terminal capacitor. Old cap. had three terminals. The black and white wires from motor connect across the line voltage and the other two wires connect across the capacitor. After install and trying to run the unit, found that compressor turns on for about two seconds and shuts down, but


The two terminal cap is only for the new fan motor. Connect the compressor wire back where you found it, on the 3 terminal cap. It's the terminal marked, "herm". The "common" terminal on the 3 terminal cap must still be connected to one side of the ... Carrier 38CKC036 Air Conditioner

The heat strip was never hooked up, there is three wires on top of the heat strip, grey, brown, and white , the thermastat is only hooked up with green yellow and red. There are two wires not hooked up a white and blue. There is a blue that is not hooked up on the unit. this is a package unit. I know that the three wires activate a relay to turn on the strip, and the white goes to both the grey and brown relays if they are some sort of relay. So I hope you can help me. drew


Hello! Please give me the make, and model # of your unit.Guru...............saailer ... Air Conditioners

I have seven wires hooked up to the old stat R O G Y Brown Blue W THE HONEYWELL ct3200a1001 only has 6 W Y G C R Rc do i omit one or tie two together


... Air Conditioners

Replaced fan motor for outdoor ac unit old fan has blue,black,red,and green wires new fan has brown,black,yellow,brown/white and green what goes where


Hi, the 2 - brown wires are for there own run capacitor they should have sold you. One of the browns will have a white stripe. The new cap has only 2- terminals and you put a brown on each side. The black and yellow wires are both hot which 1- will g ... Air Conditioners

I am replacing a white-rodgers thermostat with a blue wire connected to a terminal label '4'. The only other reference to a '4' terminal is in the honerwell installation manual which says that if there is both an r and 4 terminals on the old thermostat it was incompatible. I returned it for a ritetemp guaranteed to be compatible though I'm still not sure what to do with the blue wire. on the old thermostat the red wire goes to rc, the yellow to y, white to w, and green to g. Does blue just go t


Blue just goes to B ... Air Conditioners

5 ton carrier. we changed the condenser motor and marked where the wires connected. Old motor had yellow and brown to capacitor. New motor has an extra brown wire with white stripe... I connected it the same way as the old one without using the extra wire.... didn't work. Advise how to connect the new 5 wire motor... red and black wires I'm confident are connected correctly.


The best way to wire that motor is to connect a separate capacitor to it. The brown and brown w/white stripe go to the capacitor. The black and red wires go to the contactor. ... Air Conditioners

I am installing a Mars 1/3 hp fan motor. It has a black wire,red wire, blue wire, yellow wire and (2) brown wire that go to a capacitor. May Furnace has Black power wire, red wire (speed) and white common. What wire is the common to the fan motor?? I hooked it up with black to black, red to red, and white to the blue. It ran fine for 5 min then it thid my breaker in bresker box???? If the blue was not common how could the motor run at all??


Hello, Typically your common wire will be white, high speed- black, medium speed- yellow, medium low-blue, red- low. The motor could still run for a short time if it was wired wrong but will either trip a breaker or go off on it;s overload when it's ... Air Conditioners

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