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Thermastat malfunction need to know what color wires to cross to allow ac to work at thermastat until morning ac isnt on and burning up in tx

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Generally speaking; R terminal to Y terminal on the back plate. However you may have a transformer problem which would not give you power to the R terminal in the first place. Jumpering R to Y should make the outside condensing unit come on if you have power.

Posted on May 08, 2008

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Why ac blowing hot air


start off with the cheap possibilities and make your way threw.
I'd start off with replacing Air Charge temperature sensor, make sure your AC Hose isnt leaking anywhere, if those dont solve it then replace ur AC clutch, last chance would be replacing AC compressor. sometimes the compressor will malfunction randomly. or the AC clutch might malfunction aswell. covering these steps somewhere along the line you will have working AC again! good luck

May 18, 2013 | Volvo V70 Cars & Trucks

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My AC Switchs wont turn on but the ac is fully charged and the fan works changed the thermostat and still the ac wont work..please help!!


The Thermastat has nothing to do with your AC becoming on at all because the Thermastat has to do with radiator fluids going into the engine to keep its high temperatures in check not your AC. You need to check the connection of the switch with a multimeter to see if current is getting to it and it is not then check the fuse for your AC in fuse box so see if this fuse is blowned. If the fuse is blowned tells me that there is a short in the wiring to the AC switch.

Jun 10, 2011 | 2005 Hyundai Elantra

1 Answer

Wall unit is only three years old pilot stays lit but unit wont fire up. even when disconected from thermastat and ttwo wires are put toether


Check for 24 AC volts out of the transformer. One side (typically white and black wire) you will get 110 volts and the other 24 volts all the time Yellow wires or two wires same color).

Jan 19, 2010 | Williams 2509612 Ceramic Mid-Size Heater

1 Answer

How do you wire atrb-x2 echo board in a cobra 29 cb i was told the white wire inside the radio is the audio wire mine does not have awhite wire on the mic con. on the inside


don't worry about wire colors. pin 1 is ground. some mic's need two wires for ground depending on the PTT switch used. pin 2 audio. pin 3 TX pin 4 RX.. thats all there is too it. once you know the pins all radios are easy. galaxy/connex/genlee same pin outs except pin4 isnt' needed for RX but can be used for 9v dc to power micropohnes.

Nov 26, 2009 | Cobra 148 GTL 120-Channels Base CB Radio

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No Power to Duo-Term Thermastat


Can you give me model #'s of thermostat & AC unit, as well as upper unit? Number of or at least a description of thermostat, and numbers for ceiling assy should be visible when filter taken off, as well as # for upper unit should be tagged on bottom of unit on roof.

Jul 17, 2009 | Heating & Cooling

1 Answer

RV A/C COMPRESSOR RUNS CONSTANTLY


You must isolate the problem by disconnecting the thermostat wires that go to the unit. If the compressor does not run when the t-stat wires are disconnected, that shows that the t-stat is malfunctioning, or there is a short in the wiring between the t-stat and the ac unit.

If the unit continues to run after disconnecting the t-stat wires, then you'll have to look in the unit for a stuck relay

Jun 11, 2009 | Dometic Rooftop RV Air Conditioner

2 Answers

How do you wire the cat 5e multi jack? Which wires go where?


Hi tonybenjamin

Here are the pinouts for a regular fly lead (PC to Switch"hub") and for a cross over cable (PC to PC)
Front view of the RJ45 MALE pin. Pin's top with Locking clip 02ca060.jpg
1. Fly Lead

Name Pin Wire Color Pin Name TX+ 1 White/Orange 1 TX+ TX- 2 Orange 2 TX- RX+ 3 White/Green 3 RX+ 4 Blue 4 5 White/Blue 5 RX- 6 Green 6 RX- 7 White/Brown 7 8 Brown 8
2. Cross Over

Name Pin Pin Name TX+ 1 3 RX+ TX- 2 6 RX- RX+ 3 1 TX+ RX- 6 2 TX- Extra Pins 4 4 Optionl Pins
(connected straight
to same pins) 5 5 7 7 8 8

Regards
Go-Tech

Dec 14, 2008 | Leviton Quickport 5G108 Category 5e...

1 Answer

Installing thermastat


any wire can go to any terminal. unfortunately you now have to hand trace each onre to the device it powers and hook it up accordingly. a daunting task even for a pro. having said that the installer could have used the normal colrs for the usual wiring if you were real lucky. as a general rule the red goes to the r terminal. the yellow goes to the y terminal. the white on a heat pump usually goes to w2. the green powers the fan and goes to g. usually the changeover valve is powered by the o terminal and that is usually wired with an orange wire. that only leaves two more wires. one is the auxilliary or emergency heat terminal and any color wire can be used for that. it will go back to the airhandler and tie on to the w terminal along with the white wire from the stat on most units. or they may have jumped the w and emergency terminal together and hooked the white wire to both. it will work either way. that only leaves one wire and that is the common wire to the stat taht allows it to light up and think and have power. . most stats need the red and a common to work. you may have bought a stat that works off battery power only but since you are blowing fuses it seems you have a common pulled on one wire that you have hooked up wrong and it is creating a dead short , aka a blown fuse. if you go to airhandler and finf low voltage terminal board look for terminal labeled comm . observe what color wire is connected to it and if that is the wire that goes off to the stat. if it is hooked to common and goes with the others to the stat then thats your common and should be hooked to your stat common terminal as outlined in your install sheet. you can keep replacing those fuses till you get it right or take a chance and use an amp probe and a jumper wire . only run an instant and if amps are 4, 5, 6, amps at trans your wrong. only test an instant or you will ruin transformer.probably best if you get a box of fuses.label stuff make notes and good luck. i have gotten in the habit of using a sharpie pen to make copius notes right on the service panel for me and the next guy.

Oct 30, 2008 | Honeywell Heating & Cooling

1 Answer

Ac heat carrier thermastat model no.hh01ad042


GOto the iside unit itself. and remove the door and look for a terminial strip that the thermostat wires from the thermostat connects to and write down the colors wires and the letters they're connected to and connect the same to the thermostat .... they should be... r--red=power w-white=heat y--yellow=cool g-- green=fan! See which wires/ colors they're not using and bend back! Thank-you-very-much!

Aug 31, 2008 | Heating & Cooling

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