Question about Air Conditioners

1 Answer

Heat pump 5 ton package unit

My ac is ok if I take out the thermosat and use the jumper wire to jump start I jump the Red to geen the indoor fan on, red to yellow the cool on and then red to white the heat on. But when I put back the thermosat, the thermosat burn out right away, so what is the problem,I already put in two new thermosat.

Posted by on

  • Johnny Wong
    Johnny Wong Jan 18, 2009

    I check the wire but it is OK no shorted was find

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 144 Answers

You have two of your t-stat wires that are shorted out. Disconnect the wires at both the unit and t-stat. Take two wires at a time and ohm them out. If you have continuity those are the shorted wires. Substitute them for two different colored wires if you have two wires that are currently unused. If not you will need to pull new wire. Please answer back to say if this works or not.

Posted on Jan 18, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

How do you relpace an A.C. thermostat?


E Back up heat/ white wire
AUX Jumper to E
Y yellow wire / Cooling - compressor
G Indoor fan Green wire
O Reversing valve energised in cooling most units Orange wire
L unknown. consult your manual Leave open
R Main power Red wire
B Reversing valve energised in Heat Rheem units only.
C Common second leg of power Blue wire.

Aug 30, 2014 | Honeywell RTH3100C - Digital Heat Pump...

1 Answer

5 ton goodman package unit not coming on


If you look on the install manual. It says it will work for a heat pump without backup heat. No heat strips.........If you do not have strips the guide says as follows

"PLACE A JUMPER (PIECE OF WIRE) BETWEEN Y AND W IF YOU ARE USING A HEAT PUMP WITHOUT AUXILIARY/BACKUP HEAT." if this dosnt work check the fuse in the air handler you may have blown it if you did not turn the unit off before installing.

Mar 25, 2014 | Goodman Air Conditioners

1 Answer

5 ton goodman package unit


I guess this is a heat pump unit, check the change over valve in the gas circuit, sounds like the solenoid on the valve is burnt out

Mar 24, 2014 | Air Conditioners

1 Answer

I have a bryant model 702b packaged unit with 5 wire thermostat wiring coming out of the unit. R Y B G and W. The thermostate in the house is 5 wire and goes to the old central unit and them has a 4 ire...


R-Red is power
Y-Yellow is cool
B-Blue is cool as well
G-Green is fan leg
W-White is usually heat Leg


If you have no indoor unit and this is a ac/gas or
electric outdoor unit try this.

R to R/Red to Red
G-G/Green to Green
Y-Y/Yellow to Yellow
W-W/White to White
-Dont Hook up Blue.

Turn power back on turn the fan to on,fan should run
Turn to Heating, heating should come on
Turn on Cooling,if cooling does not come on switch yellow with blue.

Jul 02, 2010 | Air Conditioners

2 Answers

A/C does not cool like it used to, unit runs


sound like your system is under sized. for every 400 sq ft of living space you should have a ton of ac or 12000 btus. also check and see if your attic fan is working. any drafty windows or doors. your supply temp should be at least 20 deg colder then your return temp. also check your filter should be changed every three months this will help with air flow.

Jun 07, 2010 | Carrier 38CKC042 Air Conditioner

1 Answer

Outside unit wont go on ( central air conditioner)


Hi, yes when you hold down the contactor with a screw driver it will send high voltage to the unit and start up. What is happening is, on the lower sides of the contactor will be a 24volt coil, a wire to each side. You are not getting voltage to this coil for it to close the contactor on its own. If this system is central air with gas heat, you will have 2- small thermostat wires that tie to the 2- wires on the contactor coil. If its not gas fired, it will be a heat-pump with several wires coming from the indoor unit and thermostat. Either way, the 2 wires you need to worry about is the red and white or red and yellow for cooling coming out and connecting to the coil of the contactor, probably a blue and brown wire to each side. These are what closes the contacts on this. By using your finger it tells me you have high voltage there, that's good. If the indoor unit is running, the problem is either in the thermostat or the wires that come back from the outdoor unit to the indoor unit are not getting 24 volts. So, if the indoor unit runs, that tells me the transformer is good. Check the thermostat wire at the outdoor unit real well to see if it may have a break in the wires. If it looks good, go to the indoor unit and remove the control panel. There may be a panel switch on it that kills power to the indoor unit when removed and you may need to tape it down while you check things out. Just have it running when you pull the panel and if all stops, you will no.If it has a circuit board, look for a auto type plug in fuse 3 to 5 amp that may have blown. If you had a meter you could check the terminals at the 2 wires that head outside to start the unit for 24volts. If all looks good there, no broken or loose wires, go to the thermostat and remove the cover to expose the wiring. If its not a heat-pump and gas fired, you will have these terminals, RC, RH, with a red jumper wire across them, a G green for fan, Y yellow for cooling and a W white for heat.To see if the thermostat is to blame, take a piece of insulated wire and touch and hold it to either of the Red terminals and the yellow terminal. Have someone outside to watch the outdoor unit. If the stat is at fault, the contactor will close on its own when you jump the 2 terminals out. Make sure the indoor panel is in place first. I am almost certain this will be your problem since the indoor unit runs. If its a heat-pump, you will have more terminals at the stat. Still jump across the Red which is 24 volts to Yellow which is cooling. If the outdoor unit starts, replace the stat! This will solve the problem. Its just a matter of finding why and where you have lost the 24volt control voltage to the contactor coil to energize it, pretty easy if you follow my steps. It has to either be a broken thermostat wire at the indoor/outdoor/ or thermostat, or thermostat is faulty not closing R to Y to bring on the outdoor unit. Please keep me posted as I would like to know the out come. I am confident you can find the problem now that you know it is a 24 volt control problem not energizing the contactor coil. I will be waiting to hear back from you.
Sincerely,
Shastalaker7

Jun 03, 2010 | Air Conditioners

1 Answer

I tring to change thermosat I can not remeber what color go where


Typical Thermostat Wiring for 4 or 5 wire Heat/Cool Thermostat (not heat pumps)
4 Wire Termostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
with one transformer for both units
Rc One Side of 24 volt Transformer
Rh Jumper Rc to Rh
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
With 2 transformers one for indoor unit
And one for outdoor unit
Rc = Red One Side of (outside) 24 volt (outside transformer)
G = Green Blower (outside transformer)
Y = Yellow Cool (outside transformer)
Rh = Blue One side of (inside) 24 volt (inside transformer)
W = White Heat (inside transformer)
COOLING ONLY Thermostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
HEATING ONLY
R or Rh One Side of 24 volt Transformer
W = White Heat

Feb 09, 2010 | Air Conditioners

1 Answer

Need to know unit size


ckl60 5 ton about a 2003 model on most ac heat pumps the model number reflects the ton sized by 12000 btus per ton also as for the indoor unit cfm rating 400 cfm per ton

May 14, 2009 | Goodman CKL60AR60 Air Conditioner

1 Answer

I have a Carrier 38tra048340 ac 4 ton unit outside, heater in attic. Thermostat is Totaline P374-1100. Power went out than back on after a few hours due to vehicle crashing into power pole. AC was running...


Blank screen sounds like a fried thermosat. Abrupt outages can affect certain types of thermostats. Make a jumper wire and jump across R and G. See if you get any action from anywhere. If a fan or compressor kicks in you know you have a burned out thermosat...

Jun 23, 2008 | Carrier Air Conditioners

1 Answer

Heating problems


It sounds like the unit is going into a defrost cycle, which is normal for heat pumps and means all is working ok when it gets around 35 or colder they start to do this more often when the red light goes back off , the outdoor fan should come back on. You may also notice steam (may look like smoke) coming from outdoor unit. Is that what happens??

Jan 15, 2008 | Intertherm P3RA-048K Air Conditioner

Not finding what you are looking for?
Air Conditioners Logo

Related Topics:

196 people viewed this question

Ask a Question

Usually answered in minutes!

Top Air Conditioners Experts

Dan Webster
Dan Webster

Level 3 Expert

8147 Answers

Bill Long

Level 3 Expert

577 Answers

Tim Whalen

Level 3 Expert

3056 Answers

Are you an Air Conditioner Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...