Having problems with your Air Conditioners ?

I have a Rudd ubha and have been using the emergency heat for a couple weeks because the aux. heat won't work. Now I need the A.C. but the unit outside won't turn on. We replaced the control panal and it worked for a few days then went out. I started to replace the thermostate but too many wires. What could the problem be?


Answers :

Did you replace the defrost board out in the outside unit? Or did you replace the control board just on the airhandler? You need to check if the board outside is functioning. Also, put the unit in cool and check to see if the outside unit is being called to come on. What could of happened is the unit was the compressor went out and that's why it didn't work in Aux. and only in emergency. I would just recommend checking the outside for issues since the inside unit is operating in emer. It could possibly be the tstat also. Just buy a tstat for a heat pump and follow the instructions. The key is to label your wires with what color is going to what terminal (r,w,g,o,y etc...) and then use the new tstat instructions. Better yet, buy the same brand t-stat. Hope this helps.

Repair Help & Product Troubleshooting for Air Conditioners
You need a second opinion or clarification ? ask it in the comment box OR you can Ask Your Own Question

Tips for a great answer:

  • Please provide as much detail as possible as this will allow our members to better understand and respond to your Comment
  • If you need clarification, ask it in the comment box
  • It's 100% free, no registration required

Suggested Questions/Answers :

It is recommended you read all this kind of situations

I have a Rudd ubha and have been using the emergency heat for a couple weeks because the aux. heat won't work. Now I need the A.C. but the unit outside won't turn on. We replaced the control panal and it worked for a few days then went out. I started to replace the thermostate but too many wires. What could the problem be?


Did you replace the defrost board out in the outside unit? Or did you replace the control board just on the airhandler? You need to check if the board outside is functioning. Also, put the unit in cool and check to see if ... Ruud UBHC Air Conditioner

My heat isnt working now but in the summer time my ac works. but last year my heat woulodnt work but then one day started working. then the summer time my ac wouldnt work then one day started working an now that it is cold out again my heat wont work. what could be the problem. i already tryed replacing thermostat. an the heater core is working cause both lines are hot.


What kind of air con is it. it would be a sticky reversing valve either from inside the valve or the solinoid pulling it siting on the valve. http://t3.gstatic.com/images?q=tbn:SMSfcwrA_p4i6M:http://www.daviddarling.info/images/reversing_valve.jpg&t= ... Air Conditioners

I just bought a 24000BTU spilt type inverter room air conditioner. It was installed with professional equipment and the vacum was tested. When it was first started it gave an E4 error. we reset the breaker the error went away that was 3 days ago. we tried it on heat the first day worked alright , the second day we tried the cooling it was alright, that night i put it on fan it worked all evening and night then yesterday it gave me an E4 error again . we reset braker the error would not go away.


... Air Conditioners

I have an air conditioner Appliance AAC 1100 A-PTC that wos working for two days and now its not cooling or heating:-( Both outer and inner parts of the machine seems to be running but it wont heat or cool the room. When i try to turn it on there is a red symbol that lights up on the display (defrosting) this light goes off every 5 minutes or so,then the machine starts to blow air (not heated or cooled) for aprox 20 seconds then the red light comes on again and this procedure starts over again.


... Air Conditioners

At 30,000 miles my then 8 or 9 month old chevy 2500hd 4wd pickup truck air conditioning started blowing hot air on the driver side (the passenger side was still cold). I turned the truck off and back on and it began blowing normally for a few days and then it would do it again. A year or so later the heat on the driver side went out totally (passenger side worked properly). So now the driver side blows cold air constantly. A few months after that the blower quit working all together. Now at 185,


What year truck is this? This is actually a very very common problem on those chevy trucks. Most times it is the door blend actuator that has failed. and the default for this failure is driver side blowing hot. There are a million posts out there on ... Air Conditioners

We live in southwest Florida. Our HVAC system consists of a air conditioning system with heating coils when it is cool. Yesterday morning we tried the heat nothing come on. Later in the day I tried the air nothing. I tried turning in just the fan nothing. I just checked the breaker I have power where the wires are connected. I went out to the outside unit and pulled the cover. Pushed in a spring loaded plastic switch the fan on outside unit works and shut off when I released the switch. But noth


Hello. Sounds like you do have power. That spring loaded plastic switch is a 24v contactor. It pulls in when energized. If you push it in manually everything shoud run normal. Ck your 24v transformer. On one side (feed) you should have 115v or 220v ... Air Conditioners

The outside compressor and fan will not shut off. I have turned the thermostat system to Off and even to heat, but it will not stop. I went on a trip, increased the room temp to 80 on the thermostat and left. When we returned 2 1/2 days later, the coils were frozen and no air was comiing through the vents, even with the blower motor working. So I turned the unit to furnace and melted the ice on the coils, but had to pull the fuses on the outside box to get the compressor to shut off. Is there a


Sounds like the contactor is stuck. That's why nothing will stop the fan and compressor except killing the power to it. You should be able to get one fairly cheap. ... Ruud UAKA037 Air Conditioner

We have a Carrier Heat pump. Today the heat pump and (gas) furnace turned off completely and the thermostat is blank. We've checked the fuses and they seem to be fine and everything else is working well. It's forecast to be in the high 30's over the next few days so having the heat pump/AC working is a necessity. The installer can't get here for 2 more days ( he doesn't work weekends). I don't have any idea what to do. Help - help!


Is the thermostat battery powered or powered by the transformer. If it is powered by the transformer then the transformer may have gone out. Turn the thermostat to off. Use a multimeter to check for 24 vac between R and G on the thermostat. If you do ... Air Conditioners

We have a GE Zoneline Heat / Cool Model 2800 (with Heat Pump Model 3800). The blower works but no heat. The A/C works fine. My brother works for Marcone Appliance parts. He removed the housing to the control board, and suddenly the heat started working. It stopping the next day. We replace the control board, but no go...it still won't heat. What could be the problem?


... Air Conditioners

I have a CH&A Goodman AC outside. My Fan and heat work properly. My A/C wont turn On or the Auto Fan. But works with heat. Can push the 24V copper connector to turn on the A/C but when i let go it disconnects. Replaced the thermostatAlso even holding the Connection the auto fan on the pump wont turn on...


You need to check to see if the voltage is coming to pull the contact in, if not then you will have to check for the voltage at the air handler/furnace on the main board for the voltage. If the voltage is at the contactor then the coil is bad and you ... Goodman CKL49AR49 Air Conditioner

Howdy , I have a 5 year old or so Goodman model pckj060-1, I have no heat a/c seems to work ok not sure if its heat strips are working or what, it was working fine a few days ago when we dropped below 37 or so, it has power to the breakers and the thermostat in house was jumped out so its ok, being disabled now hinders my movements so from what i can tell its getting power to the heat strips and ive done an ohms reading on them and they do not seem to be any dead coil strips or open strips to ac


Hi,\015\012If everything elese checks out, I would be checking the contactors or relays... whichever is used to energize the heat strips....\015\012If you have power going to the unit and the strips are good then the relays are not placin ... Air Conditioners

Twice the heat went out LG 18000 5 year warranty. 1st time unit sparked inside the unit, Tech came out couldn't repair was given a new unit (2 weeks out of service) had to buy 2 floor heaters at a cost 125.00 as temporary measure. 2nd time out was a year later. (used twice for heat) Waited for tech 1 day called to cancel that day for the next day and would be at house between 6 - 8pm. Never showed called at 7:30pm and asked me some questioned. Tech ordered updated heater core. He state


Was the first unit a different model ? what the repairman said is pretty much right but they should be more ontime and communicate if they want a good name. the unit should work fine after replacing if it doesn't dont pay for the part ... LG LWHD1807HR Thru-Wall/Window Air Conditioner

We have a Weatherking Heater/AC unit the heater works and the AC worked last summer when we tried the furnace this winter no heat found out it was the 24 volt transformer replaced it and heat worked fine went to try the AC this summer and when we switched the T-stat to AC it burned out the Transformer Again. Do you think we have a short in the wireing to the AC unit


I think you have a definite short and it's in the 24 volt circuit. The only problem is - 'finding a low voltage short' is not the easiest thing in the world to do - so - I would guess you'd need a Service Tech.\015\012\015\012good luck! ... Air Conditioners

Carrier thermostat Hello, My Carrier electronic thermostat is connected to a heat pump.  It was set to the COOL position during a summer thunderstorm when the AC suddenly began running no matter what the SET temperature was.  It works normally when I change it to the AUTO position.  The HEAT and EHEAT positions work normally. I tried cutting power to the unit for 2 days, after which it worked normally even on COOL, but after a short power failure it resumed the problem of running the AC continuo


I hate to say it but Ive had trouble with Carrier's Tstats doing similar improper things. Unfortunatly the only repair is going to be replacement of the whole tstat. I recommend Honeywell's FocusPRO or VisionPRO tstat. Ive yet to have one fail and th ... Air Conditioners

Heat pump shut off 1 to 2 minutes, service yesterday for same problem told low on freon. Added freon, worked fine until it went thorugh first defrost, now back to same thing. Tech says compressor not getting signal from thermostat. After resetting T-stat, unit came on. Unit works on cooling and Aux heat, but no heat pump.


It is possible that you have one or a combination of a few different problems here.If your heat pump will not come on but the air handler works, the first thing you want to check is that the circuit breaker and disconnect for the heat pum ... Carrier Air Conditioners

I have a Select Comfort 2000 thermostat. I just replaced new batteries couple days ago. The past week my heat will be working fine all day and/or night then suddenly it will not kick in and the aux light is lit. Over the past few days it has finally kicked in and worked now today is a different story. I have even tried to replace the batteries again still nothing. HELP!!


Sounds like you have a heatpump. Is that correct? When it gets under 35F or so the heatpump just isn't able to keep up with the heat demand and will require help from a backup source such as electric strip heaters. The way the thermostat works is tha ... Air Conditioners

ON excessively hot days, the outside heat pupmp trips the circuit breaker. Most times it is only once, I turn the breaker to "on" and it works fine. Some days it pops two or three times. When the outside air gets cooler, it works fine. When the unit is operating, it appears to be operating normally (meaning cold air). I have not experience this during cold days.


Hello I would add a HARD START KIT to the run capasitor (if there is not one already).This makes the compressor come on easy.If the breaker trips during running time the pressures are too high,hose off the condenser coil (fins).The unit might be slig ... Carrier 38CKC036 Air Conditioner

Furnace is a York Model#p4ugd12n09001a probably installed around 1991. The air condition was working fine. couple of days ago nothing was working. Blower wont tun on, air conditioning unit wont turn on. I did have the fan on the on position on the thermostat so it was always on until it stopped.


Probably a bad low voltage transformer. ... Air Conditioners

I have an old Miller 3 ton heat pump. It will work fine sometimes but when it decides not to work i can go outside and press the power contactor and the unit will come on as long as i hold the contactor pressed. A friend told me the defroster board could be the problem because when its cooler than 45 outside it wont come on by itself. But when i measured voltage at the thermostat no wire had 24volts.When it runs it runs good and cools or heats the house well.


It sounds to me you need just a really good tune up maybe a new contactor retest your low voltage what do you have from common to 24 volts it should be 27 volts if you test each wire you want get 24 v it will be like 7 or so ... Air Conditioners

We have a Rheem air conditioner that is 9 years old Model number RAKA 037-JAZ and have been having some issue with it. Last summer the condenser wasn't coming on so we have a friend who is a HVAC guy and he came over and cleaned it all out and then it worked great. At the beginning of this summer we started having the same issue, so we cleaned it out and it worked for a couple of weeks and then started to have problems again. One day, it ran all day and the temp stayed high when we went to look


It sounds like he got you a Hard Start Kit/Capacitor, that might explain\015\012the five minute delay. When the fan is not operating the compressor will\015\012make a loud noise..\015\012\015\012Check to make sure insulated su ... Air Conditioners

I have a fujitsu installed about 2hours ago and the timer light blinks about every 30sec and the heat wont work and the cold air works fine, and the outdooe unit wont turn on as well


I believe that this addresses your concern...\015\012\015\012During Heating operation, the unit will temporarily stop operating (between 7 and 15 minutes) as the Automatic Defrosting mode operates. During Automatic Defrosting operation, t ... Fujitsu 24C1 Air Conditioner

My power went out so when it came back on we had to go flip the switches on the fuse box but now my ac wont work, we even changed out the outlet to see if that was the problem but it still wont work


I assume since you changed the outlet it is a window unit?\015\012\015\012Does the fan work?\015\012\015\012If so you either have a thermostat that won't engage the power to the compressor or you have a bad capacitor that star ... Air Conditioners

OUT SIDE UNIT SHUT DOWN IN HEAT MODE, WHEN YOU FIRST TURN IT ON IT RUNNS FOR ABOUT 30 SECONDS THEN BOTH THE COMPRESSOR AND FAN SHUT OFF FOR APROX 3 MINUTES {LARGE LINE STARTS TO GET WARM} AFTER 3 MINUTES BOTH START BACK UP BUT ON RUNN FOR 5 OR SO SECONDS THEN KICK OFF AGAIN, SERVICE TECH. BLED PRESURE VALVE WORK FOR LESS THAN A DAY, HE CAME BACK AND BLED IT AGAIN WORKED FOR LESS THAN A DAY,


Hi, You have a heat-pump, this I do no. The reason it is shutting down from how you have explained it to me, is the compressor is shutting down due to high pressure and it is going off on the internal overload. When the compressor cools down, it star ... Air Conditioners

I installed hz311 truzone but the fan wont turn on on heat even when i put it on auto or on. but it works fine when i put it on cool. also notice it shows it calling on heat on the zones but the fan wont turn on


The main PCB board is defective ... Air Conditioners

My 2001 VW jetta VR6 heating and cooling are not working. Sometimes if I turn the AC on I will get a little bit of cool air but it wont blow hard, but most of the time it doesnt work the heating is the same way.


... Air Conditioners

A detailed question is important to get you a relevant answers

  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
all rights reserved to the respective owners || www.ad-trader.net || Terms of Use || Contact || Privacy Policy
Load time: 0.0753 seconds