Having problems with your Air Conditioners ?

My Duo-Therm RV roof-top a/c unit continues to come on and off when the system is turned off. No air blows, just the compressor runs for about a minute then shuts off. About 5 minutes later, it comes back on and does the same thing. Again, let me stress, the system is in the OFF mode.


Answers :

Hi,

The liquid line solenoid valve is bad and is allowing just a bit of refrigerant through it after it shuts off and the compressor pumps down....this causes the pressure to rise a gain and then the compressor comes on to pump down again...
This will happen even if the system is in the off mode...

the valve will need to be replaced... that requires the system to be evacuated and then recharged...

heatman101

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

My Duo-Therm RV roof-top a/c unit continues to come on and off when the system is turned off. No air blows, just the compressor runs for about a minute then shuts off. About 5 minutes later, it comes back on and does the same thing. Again, let me stress, the system is in the OFF mode.


Hi,The liquid line solenoid valve is bad and is allowing just a bit of refrigerant through it after it shuts off and the compressor pumps down....this causes the pressure to rise a gain and then the compressor comes on to pump down again. ... Air Conditioners

I have a Coleman Central Air/Heat System. This year, the outside compressor (or whatever it is called) is shutting off within minutes of the air conditioner coming on. This is resulting in the home never cooling down. I can reset the system by shutting the air off inside the home for a few minutes and the outside compressor comes back on, but again, only for a minute or two, and the unit only blows what seems to be room temperature air.


Do you know the devices model. It would help in locateing the manual. also I beleave you have the manual?\015\012\015\012As micromaster already said, check for sleep timer.\015\012\015\012has the system worked fine before has ... Air Conditioners

RV AIR CONDITIONER KEEPS COMING ON AND OFF. AIR IS COLD COMING FROM UNIT BUT IT SHUTS OFF THEN SECONDS LATER COMES BACK ON. DOES THIS EVERYFEW MINUTES.


... Air Conditioners

I have a 1997 rodeo. The a/c will come on and stay on for a few minutes. Blows cold air. After a few minutes, the ac shuts off.If I shut off the a/c button for a couple of minutes and turn it back on,the ac starts working again. This problem is more common in the afternoon when it's hot.I had the system evacuated and re-charged. Someone told me it might be a radiator problem. The truck does'nt run hot. I was also told it could be an a/c thermo switch.


It sounds like it is your high pressure switch located on the high side supply line of your AC. When the temperature is hot, it is harder for the condenser to cool off the freon flowing through it causing the pressure in the system to rise. Also, c ... Air Conditioners

Water tank full light keeps coming on an shuts the AC off after about 10 minutes on a Amcor A12000E Nanomax Portable Air Conditioner. I drained all the water out of it I could and it does turn back on after I turn it back on and will run for about 10 minutes. Then it beeps 6 or 7 times and the water full light comes back on and shuts it off. There is no more water coming out of it and there is a buzzing when it comes back on but it will blow cold air until it shuts off again. Please help!


Dod u get any help with your problem because i am having the same problem and ofcource the company is no longer around ... Amcor A12000E Nanomax Portable Air Conditioner

I have a DuoTherm unit on my 1989 Cross Country that only runs in the "low" position and shuts off after about 5 minutes. Won't come back on until about an hour later, then runs for 5 minutes or so...HELP!


Is the unit ducted with a wall mount thermostat? If so, then I would say that you need to check the thermostat. Remove the face plate from the thermostat, there should be 6 or 7 wires, depending on the model. With the thermostat set to high/cool, ... Dometic Rooftop RV Air Conditioner

I have a Dometic rooftop Air conditioner in my RV When I turn it to low medium or high the fan run the same speed and when I turn it to AC it will run for about 5 min then the fan will shut off but the compressor keeps running I turn it off for a min or so and everythings comes back on. Turn it to the fan only side and the fan will run for 5 min then shut off a min later it comes back on then back off and on in fan only side.


Bad fan motor I suspect The windings are bad causing the motor to over heat sending the motor into thermal overload. would suggest the replacement of motor. Good Luck on repairs\015\012\015\012Dave ... Dometic Rooftop RV Air Conditioner

I have a honeywell PA404A pressure control switch on my home gas steam heating system. I'm having a problem with the switch turning off the system. It will only come back on if I turn the top screw all the way out, then back down to approx 5psi. At this point the heat will turn on but when the thermostat shuts down the system it will not turn back on when calling for heat unless I adjust the screw again. Also, the switch will only turn on the system when set at 5 on the dial on the inside. Any i


This may be caused by accumulation of sludge in the steam trap (the looped tube that connects the pressuretrol unit to the boiler). the sludge restricts the pressure from reaching the diaphragm in the pressuretrol unit. So it gets a false reading. ... Air Conditioners

My rv airconditioner has shut down twice in the last 12 hours. It shuts down before it reaches the thermostates temp. It won't come back on no matter how low I set the temp. If I wait for about 5 minutes , it will come back on...almost like it has to reset or something. Is this a serious problem. At 96 degrees today, I don't want it to go down!


You need to check and see if the coils are icing up. So you are going to have to pull the cover and take a look at it. With the high heat and humidity a unit that is low on freon will have a tendency to ice up the coils. ... Coleman Air Conditioners

Turned on AC was running fine. 30 minutes later began to hear a strange noise. Opened AC/Furnance closet & heard a sound best described as air letting out of a tire. It seemed to be coming from copper pipe. Minute later sound stopped & air was suddenly hot. As if AC was turned on fan not cold. Went outside & neither fan nor motor was running. Turned fan manually. Ran for about a minute then stopped. Outside unit was making what could best be described as a buzzing sound.


Hi!!\015\012\015\012This means that the condenser fan motor (outside unit) failed, this caused to build hi pressure and either activated a safety valve to release the extra pressure or blew a line and R22 Refrigerant escaped from system. ... Goodman CKL42AR42 Air Conditioner

You can set the temp for the unit to come on and it comes on and runs and cools for a few minutes then the compressor cuts off then the fan a little later. After a few minutes it comes back on and does the same thing. It never cools down to the set temp. The coils are wet but not frosting.


Is the AC set on an energy saving mode. Together with this program if the thermostat is defective the same symtoms can appear. So please check on the thermostat and replace.\012Since the compressor is cutting off the cooling does not take place ... Whirlpool ACC184PS Thru-Wall/Window Air Conditioner

My ac comes on in my RV and runs for a about 15 minutes and then the fan shuts off and finally the compressor shuts off. this happens before reaching the cooling temp. When it comes back on the fan does not come on at all and you can just hear the compressor hum


The Fan topside , Is the one working? The one that blows on the condensor? If not, your compressor can be trying to start against high head pressure. Ck the other fan, not the one that blows inside, the other one.It cools down the condensor and ... Air Conditioners

I have a Sharp Portable air conditioner Model CV-10NH. It will start up and cool and in just a few minutes, it's as if some one thru the switch. It just shuts off and all three lights on front start flashing green one yellow one and red one. The only way I can get it to turn back on is to turn power of and let sit for a few minutes, or kick the reset on the plug end. but it just runs again for a few minutes and shuts down again.


... Air Conditioners

Our furnace went into lock out and so I cycled powere and it reset it started working again but not correctly. The inducer motor wis coming on for a few minutes then the hot ignition comes on and the gas lights. then the blower comes on then shortly after the gas cycles off and then a few minutes later it cycles back on and usually the fan alternates on with the gas. I started checking the safety switches that go to hot ignition control. (24V) Once everything was running the 24V would drop to ze


Boy it sounds like a high limit opening up and shutting off the gas valve. It won't shut off the blower because it wants to cool off thge furnace. Check for any restriction in the air delivery system, filter, registers. Check for blockage of the exha ... Air Conditioners

Intertherm model T3RC-030K Shortly after unit comes on in the heat mode it starts to frost up,it will shut down and defrost and come back on for approx 5-10 minutes and again shut down to defrost the temp today was in the low 50s


Hi, if this is a split system with a remote condenser It sounds as though you are having a problem with the thermostatic expansion valve on the heating cycle. If indeed this is a heat-pump, it has 2 metering devices that meter freon into the evaporat ... Air Conditioners

Our Mitsubishi FDC506HES ducted air conditioner keeps shutting off on hot and cold after about 10 minutes and flashes and the comes up with the error code E3.It will heat for those 10 monutes before it shuts down but it will not really cool at all. Please help. We cant afford to get someone to fix it. We just paid a guy to come and look at it $120 and still he said he didnt know and would have to contact Mitsubishi and get back to us. $120 for that. That was a good portion of our weekly budget G


Try to reset the error by disconnecting the circuit breaker for 10sec. and "on" again then operate the unit. But if wont work may there some parts that are defective that trigger the error E3. Replacement of pars is needed for this problem. ... Mitsubishi Air Conditioners

Conditioner fan runs but compresser shuts off after only a few minutes and doesnt turn back on.sometimes if i tap the side of the unit the compresser turns on but only to shut off later and not turn back on by itself. danby window model DAC5088M


From your description, seems like compressor is seizing when hot, tapping it shakes the piston loose then it seizes up again after a while. ... EMI EHW 18000 Air Conditioner

Duotherm ac Installed new duotherm ac on rv. In cool mode on call for cooling everything comes on properly. 10 minutes later fan stops while compressor continues to run. 10 minutes later fan starts back.


... Coleman Dometic Duotherm Rv Air Conditioner Universal Roof Gasket Seal 14 X 14

I have a Sanyo Split System the indoor unit is a KHS0921 and the outdoor unit is a CH0921. When i first turn the indoor unit ON the fan will run for a few minutes and then go off. The outdoor unit never comes ON when there is a cll for cooling. The only way to get the fan to come ON again is to turn the breaker OFF and then back ON. The Operation loght will come ON when the fan is running but it will start flashing when the fan goes OFF. What should i look for?


... Sanyo Split System Air Conditioner

HAVE A COLEMAN MODEL DRHSO601CB --- THE UNIT WILL RUN FINE FOR SEVERAL HOURS WITH GOOD COOLING AND THEN PERIODICALLY THE TROUBLE LIGHT WILL COME ON THE THERMOSTAT AND THE UNIT HAS SHUT DOWN. TO RESTART - YOU MOVE THE THERMOSTAT TO OFF WAIT 5 MINUTES OR SO AND PUT IT BACK ON COOL -- IT WILL RESTART ALMOST EVERY TIME AND RUN FOR SEVERAL HOURS. IN THE PAST IN THE PAST I REPLACED THE DEFROST CONTROL BOARD BUT WHEN I DID THAT THIS TIME IT STILL SHUTS DOWN - WHAT OTHER PROBLEMS ARE YOU AWARE OF ON TH


You may have a low pressure or high pressure switch tripping out the board as well. You might try cleaning both the indoor (evaporator) coil and the outdoor (condensing) coil. Be sure to turn off the power source before servicing this. ... Coleman 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

My Sharp floor-standing air conditioner (black, from Home Depot) suddenly stopped working. When I press the power button, the Operation light comes on and air blows, vents move, for less than one minute, then the whole unit shuts itself back off. It will do this over and over. An appliance repairman who would not come look at my unit said that it sounds like an electrical problem. What can we do? No one will service this in our area (Orange County, CA)


... Sharp CV-P09FX Air Conditioner

Furnace problem I have a carrier weathermaker 8000 furnace that is coming on for about 1 minute, shutting off for 20 sec., then coming right back on. The air seems to be warm at first, but then it starts blowing room temperature air.


Clean sensor with steel wool. It is the one that looks like a mini spark plug and has one blue wire to it. Fixed mine. ... Air Conditioners

For some reason after I switched it off last night then switched it back on some time later it didn't work. It looks like it is going to start say i put it on 23 there is a star and a drip under it next to the 23 and next to that the circle with a vertical line through it. The bottom comes down like it is going to blow air and then it suddnely goes back up after about 1 minute and displays CH then 05. I have done everything I can think of including turning it off at the mains for at least 10 min


Hi, CH05 means a error code.This error code means there is a communication error between the indoor unit and the out door unit.this is usually caused by wiring errors condensate pumps connected to the inter-connecting cable.The communication ... LG Art Cool LA121HNP Split System Air Conditioner

I have a Feddders A7T12FA air conditioner. It was just put in for this summer and it is now not working. When I first plugged it in, the control panel would light up, air would come out briefly and then it would shut down. This happened twice. I then got it turned on after taking the plug out and putting it back in. It was turned on less then 5 minutes before it shut off and now I can't get it to start up again at all. Please help!


Unplug the AC remove the casethen follow the plug wire until you see a fuse this is probably burned out but, is only a symptom not the problem next look carefully at the silver cans with the wires on top these are the run and, start capacitors one sh ... 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 || ad-trader.net || Terms of Use || Contact || Privacy Policy
Load time: 0.0785 seconds