Having problems with your Air Conditioners ?
My unit is cycling on and off every 2 minutes or so.
This can be due to a faulty thermo sensor or if the unit is fitted with a pressure safety switch, it could be short of refrigerant.
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 recently had a new outdoor unit installed on my central heat and air conditioning sytem. I have had the installer out 3 times and the system still does not operate correctly. Sometimes when it cycles (every other time or every third time) the unit does not blow cold air. Sometimes the unit comes on not blowing cold air and the compressor fan is running but not the compressor. Sometimes after 15 minutes of this the compressor will come on. What is the problem.
It sounds like the compressor needs starting components installed on it. All a/c units have a run capacitor for the compressor and another one for the condenser fan motor. These motors use these capacitors all the time when the motor is running. H ... Air Conditioners
Wrench When the unit cycles up every 20 minutes or so the LED screen comes on with a flashing picture of a wrench. This lasts about 15-20 seconds then disappears and unit cycles down.
... Friedrich SM21M30 Air Conditioner
The unit cycles every minute and the fan continues to run.
You are right the problem is with the thermostat. if this is an all-in-one unit there is a wire that runs from the thermostat to the front of the evaporator coil where the air returns to the system to be cooled. you can try to move the wire further a ... Dometic Rooftop RV Air Conditioner
My unit is cycling on and off every 2 minutes or so.
This can be due to a faulty thermo sensor or if the unit is fitted with a pressure safety switch, it could be short of refrigerant. ... Carrier 38BRC036 Air Conditioner
I have a Carries Mod# 24ABR348G510 Condenser unit. The system start with a normal cycle for about Three min, I've timed this to be this way every time the system is started. After the Three minutes the contacts starts to chaters. The 24 volt control voltage is up and down the scale and the condenser unit thin stalls and shuts down? I have Twelve of these units to keep maintained. The head is to be OK and the system is clean and the Thermostat checks out to be OK.
Hi,Did you already check the exhaust or the motor unit, the possible that has problem on there was the electric contactor, this was the switch the make the main motor to power, if this one was faulty it will have a problem just like the o ... Air Conditioners
With thermostat in the off position compressor continues to cycle continuously every 5 minutes for 1 minute. Is this normal operation for the unit??
Yes it is a normal operation\015\012dont worry ... Dometic Rooftop RV Air Conditioner
Short cycling My GE Zoneline cycles for approximately 10-15 seconds every 10 minutes or so, even when the unit power switch is in the stop position. No heat is generated , the fan just goes on and off. This is very disturbing in the evening hours. Temp outside is approx. 30, inside temp 60-65. Can I adjust this with the limit switches under the main cover?
The most common cause is the fan relay on the main circuit board. However, if the outside temperature is 30degF and the inside is 60-65degF then the cause could be the insulation is ruined or missing on the backside of the unit's firewall. This can c ... GE Zoneline AZ38H12DAD Split System Air Conditioner
Carrier Comfort Zone II Smart Control in one zone frequently cycles unit (every 20-30 minutes) even when temperature in the room does not change significantly and the indicated thermostat temperature does not change at all (stays on 77 for example). Shouldn't the thermostat temperature change at least a degree or two in order for it to turn the unit on or off?? Is there a way to adjust the sensitivity of these controls?
Sounds like your zone control tstat needs calabrated or maybe replaced,in owners manual there should be a section on calibration if not you may have to replace it ... Air Conditioners
We have a Honeywell RTH230B programmable thermostat installed on a rudd a/c system. Everything works fine except the a/c unit cycles on and off about every 5 minutes.
Probably cycling on low or high pressure switch. You may be low on refrigerant, dirty filter or indoor coil, causing low pressure switch to open or the outdoor coil is dirty or outdoor fan not running at the proper speed causing the high pressure swi ... Air Conditioners
My Sharp CV-P09FL portable a/c unit keeps cycling every 2 to 3 minutes
Check your filter to see if its clean, and also move your thermostat sensing bulb in front of the front cooling coil in front of your filter, this cold be a sign as weakening thermostat sensing bulb, if all else fail, replace it.Thank-you-very-much! ... Sharp Air Conditioners
A 2 month old Goodman GMH95 natural gas furnace has been working properly until tonight. Now it starts up properly, but after 30 seconds (and right when the cirulator fan kicks on) it shuts the gas valve stopping the flame. LED light flashes 8 times, which is not an option on the trouble shooting guide. Unit will retry every few minutes and cycles this way over and over. It appears the control module is not receiving the gas flame detection signal. What do we need to do?
Goodman's control boards are very sensitive as well as the connections to the gas valves. Check the wires and make sure they are snug and tight. With it being only 2 months old, I doubt the board is bad or the flame sensor(unless it is a used syste ... Air Conditioners
I have a chigo kfr-51gw/gx1a two piece air conditioner that runs in cool for 10 minutes then shuts down for 3 minutes and keeps repeating cycle while The indoor units fan keep running I've read that this unit has a dehumidifier mode that dose this same cycle. If this is what it is doing is it possible to stop this mode from cycling Thanx
... Air Conditioners
Hi I have a goodman MSG-18HWN1 heating and cooling mini-split unit. The unit keeps going on and off on a cycle of about 5 minutes. 5 minute, unit not started, unit starts for about 5 minutes, stops for 5 and so on. Is that a normal behaviour ? It is a bit annoying. Thanks
Due to abnormal temp of out door.Check outdoor fan motor and compressor and also sensor.Fan motor not working- rectify/replace fan capacitor.Sensor defective-Replace itCompressor high amps-Replace running capacitor.Sensor misp ... Air Conditioners
I have a unit that is cutting off and on every 5 minutes, what could cause this? It is running 55 suction and 235 head pressure and working and cooling but every 5 minutes it cuts off and comes back on in another 5 by itself.....acts like a sensor or something is reading faulty but there is no info on this unit...its just a little mini split.
If this is a R-22 unit the unit is cycling on the low pressure switch. They are usually set to open at 60 psig. Pressure below 55 psig the indoor coil will freeze up so they set the pressure switch to open at 60 psig + - 3 or 4 psig. You either need ... Air Conditioners
We have this air conditioner in our sunroom. From the beginning, the temperature set is not maintained. When the unit is set to cool, no matter how high a temperature I select, the unit cuts on approximately every 10-15 minutes, and cools the room to about 66 degrees. When set to heat in the winter, no matter how low a temperature I select, the heat cuts on about every 10-15 minutes, and the room will heat to a much higher temperature than selected. Any idea what the problem is, and how I ca
Change thermostat. ... Amana PTH153B50AM Air Conditioner
My MSY-A17NA UNIT will start functioning normally then after about five minutes it stops blowing air and the operation led signal starts flashing. When both the operation and indicator led's are on the unit works properly. After I shut it down and start it up again the unit works fine. How can I get it to stop shutting down every 5 minutes? I'm in Hawaii and it is Hot here! Please help.
Hi,Here is a tip about Mitsubishi Air Conditioners and how to get the manuals for all of the Mitsubishi line. The manual include both troubleshooting and installation. ... Mitsubishi Air Conditioners
A/C runs cold when first turned on. Will run fine for about 1 hour, then the compressor starts to cycle on and off. Will run cold for approximately 2 minutes then compressor kicks off for about 4 or 5 minutes. Compressor then kicks back on for another 2 minutes and then kicks off. This cycle will continue for as long as you leave the unit on.
It sounds like your unit is low on refrigerant. Have it checked and refilled if necessary. ... Dometic Rooftop RV Air Conditioner
I have a 18000btu LG mini split heat pump installed about 1 year ago in vacation home. In heat mode the unit cycles on and off when room temp is within 2-3 degrees of set point. Cycle on time varies between 35 to 60 seconds (sometimes more). The off time is 2-3 minutes. During this time, I check inside temp with accurate digital themometer mounted at the air intake of the unit and the temp does not change, assume because unit does not run long enough. When I put temp set point more than 3 d
Hello.I think they are on to something with shortcycling on temp sensor.I think it should be sampling the return air instead of (inside coils ?).A 2*f dead band use to be built in (factory installed) to thermostats to prevent on/off, but ... LG LS-L1210CL Mini Split Air Conditioner
RUUD heater The heater will run for about 20 to 30 minutes then it will cycle on and off. The igniter lights every time. It turns on the gas but only stays on for about 5 seconds then shuts off. The fan comes on for about 2 minutes then the cycle starts all over again.
Sounds like a dirty flame sense rod. Be sure to shut off power before removing the rod and cleaning it with sandpaper or steel wool. Do not touch or disturb the hot surface ignitor or you may cause it to fail. ... Air Conditioners
My Rheem Classic Super Quiet 80 STARTS EACH HEATING CYCLE WITH COLD AIR AND FINISHES EACH CYCLE WITH 1-2 MINUTES OF COLD AIR..THIS OCCURS EVEN IF THE UNIT WENT OFF ONLY MINUTES AGO.
... Air Conditioners
This season we bought 3 Sharp CV-2P10SC portable air conditioners for home use. We have used the 2009 and 2010 versions of this unit previously and have been very happy with them. Not so with the 2011 models. Their cooling capacity is very disappointing. They cycle in an approximate 2 minutes on / 2 minutes off pattern. This is operating in an 85F ambient medium humidity conditions. When "on" the airflow is low and the air is not cool. When the unit is turned to "maximum" it shuts itself off! Th
... Air Conditioners
Amana PTH153B35AK This unit is less than 30 days old, heats fine cools fine, but when i have it in heat mode,set @ 70 or so, as soon as the room heats up, the unit will cycle into a/c mode and blow super cold air for about 5 minutes than return to heating. Sometimes it will reach the desired temp. and turn off like it is supposed to do, but for the most part it just cycles back and forth from hot to cold...Amana has the worse help/service i have ever seen, i was on the phone for an hour,everybod
This often happens if the unit is oversized or to close to a wall or object. ... Amana PTC153B35AK Air Conditioner
I have a six year old carrier high wall split air conditioner that is displaying a code four (runs for 20 minutes then shuts down wall unit green light keeps flashing 4 times. if you switch off then on the circut breaker the unit cycles up and runs for another 20 minutes then the process needs to be repeated
... Carrier 38CKC042 Air Conditioner
MY RHEEM CLASSIC SUPER QUIET 80 BLOWS COLD AIR EVERY TIME IT KICKS ON AND ENDS EVERY CYCLE WITH A MINUTE OR TWO OF COLD AIR. THIS HAPPENS EACH TIME THE FURNACE KICKS ON EVEN IF IT JUST WENT OFF MINUTES AGO....HELP!!!
... Air Conditioners
New cp24g30 cycles every few minutes in power saver mode.
... Friedrich Air Conditioners