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Carrier ck38co30 condenser won't start

Carrier condenser won't start. Inside fan blows warm air. Condenser fan and compressor are not coming on,

Posted by maximillian on

  • Robert Jul 02, 2012

    Hello, the first thing is to verify if you have 24 volts and 240 volts at the contactor coil at the outside unit. 240 should ne present at terminal L1 and L2 and 24 volts at low voltage terminals. Let me know what you get

  • maximillian Jul 03, 2012

    Ran all the checks. I can disconnect the compressor, and get the fan only to start normally. When I reconnect the compressor's 3 wires, SNAP, out go the both fuses and the breakers in the main box. I checked for shorts in the compressor wires, nada. I think the compressor is kaput for sure. Update: AC guy came, went through all the diagnostics. Compressor is kaput, likely shorted windings inside (we checked the coil resistance at the compressor). Looks like a whole new condenser will be in order...

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5 Related Answers

Anonymous

  • 3 Answers

SOURCE: Carrier air handler tonnage?

That is a fairly large difference. It is usually ok to have the inside evap. coil and blower up to 1 ton larger than the outside condenser. That will make the unit slightly more efficient as well as less likely to freeze up on low airflow situations. It is not recommended to install a new condenser on an old evap coil. There has been a lot of changes to the design of the coils in the last little while. For example a 10 year old 2 ton coil may only have 3 cubic feet of volume but a new 2 ton coil may have 4 cubit feet of volume.

There are many factors that may have infulenced the decision on what size condenser to install. Many of which can only be done by visiting the home and doing alot of work, checking the duct sizing bioth supply and return, inspecting the insulation and windows of the home etc. etc. Most of the time that never gets done. You can blame the contractor for not doing a complete check, but at the same time you can blame the customer because many contractors that are that good loose the job to a cheaper bid that did not no any of the research. It is a catch 22 for everyone involved.

There is ALOT more to sizing equipment that many people think, sadly that also includes many HVAC contractors. Way too many people use "rule of thumbs" or flat out "guess".

Sorry for the rant but your queston can only be answered by a good well educated HVAC contractor visiting your home. That type of a contractor is getting hard to find these days in such a price competetive world.

Posted on Oct 14, 2008

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steve

  • 3361 Answers

SOURCE: Carrier PTAC Condenser ices over.

You are describing normal operation for a heat pump unit.

Posted on Mar 09, 2009

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George Fleming

  • 142 Answers

SOURCE: evaporator fan turns on. compressor and condenser fan do not.

Sounds like low on refrigerant charge. Low pressure switch keeping the compressor and condenser fan from running.

Posted on Jun 05, 2009

Anonymous

  • 5 Answers

SOURCE: Carrier A/C unit blowing hot air and fan not spinning

check the belt drive and refrigerant

Posted on Jul 12, 2009

shastalaker7

Robert Horton

  • 1515 Answers

SOURCE: We require condenser fan motors for Interclisa

Hi, this is an odd voltage 380 volts. Is it a 3 phase unit? To get a 220 volt 50hz condenser fan motor, you will have to go through a refrigeration/air conditioning parts house and order this. 60hz you would have no problem finding one in stock. Carrier is a good unit, and have been around for many years. You shouldn't have any problems locating one.
Sincerely,
Shastalaker7
PS You will need to go through a wholesale parts house.

Posted on Jan 22, 2010

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Why my A/C condenser fan won t stop running, dodge ram 2008


To clarify, the compressor and fan will run in defrost mode. The compressor and fan runs to dry out the air blowing onto the windshield.
Now if the condenser fan runs in "heat" you may have a problem with the fan relay or the main controller.

Sep 25, 2014 | 2008 Dodge Ram Pickup 1500

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My fridge gets really hot on top and between the fridge and freezer where the door meets


next time send the model number and brand name.usually when this happens is the condenser fan motor isn't working.pull the fridge out,remove the bottom back panel and check the fan to see if it's working,if it is check the condenser coil to see if it's filled with lint and dust,it could just need to be cleaned out but if it's that hot most likely the fan isn't running,if you get this tonight check it now,if the fan isn't running you could blow the compressor,the condenser fan blows and keeps the compressor cool enough so it doesn't overheat by moving the hot air and the heat also esscapes through the condenser coil so if that's clogged with dust the machine will run hotter than normal,if the fan isn't running you can stick any window fan back there and blow it onto the compressor to keep it cool until you fix the condenser fan motor,this way you won't loose any food and if the compressor goes it's new fridge time,to much to repair.hope this helps and good luck with your machine.one more thing,i've found the fans not running and by pushing the blade it runs again,if this happens the fan could run and never have a problem or it could stop an hour later but i would change it out no matter what.if it's a G.E. fridge and the motor isn't running,most likely it will be the computer board,i've found 10 machines doing this and the temp. settings turning on and off or the evap fan motor in the freezer runs slow and then fast and the condenser fan isn't running or running slowly,this is why you have to send the brand name and model number.

Oct 28, 2011 | Refrigerators

1 Answer

. kenmore side by side blows warm air, after


Cut everything off for a few minutes then turn it back on and listen for a click from the compressor relay as the compressor tries to start.
Is the compressor motor running.If no check starter/overload relay. The relay is a small usually black cube shaped electrical part plugged into the compressor or wired to it nearby. It may appear burnt or rattle when shaken if it's bad. The two connections should show continuity with an amp meter. If it's good then it's most likely the compressor causing the problem.
Check to see if the condenser fan at the back underneath near the compressor is running. If no check fan.

Are the condenser coils near there warm or room temp. should be warm





Is the evaporator fan in the freezer running. It blows cold air into the fridge side through a damper in the wall between the freezer and fridge. Make sure the damper is open.

Below the evaporator fan is the evaporator coils. Remove the back cover in the freezer to observe the frost pattern. Light frost everywhere(NORMAL) or a partial pattern of ice(LOW ON FREON) or nothing(LOW FREON OR COMPRESSOR PROBLEM).
If it's iced up really heavy you have an auto defrost problem. Melt the ice with a hairdryer and check the defrost system.

Jul 30, 2011 | Kenmore Side by Side Refrigerator

1 Answer

My refrigerator stops working yesterday. Compressor and compressor fan seems to be working....inside fans are working but its not cooling, freezing or making ice.


Cut everything off for a few minutes then turn it back on and listen for a click from the compressor relay as the compressor tries to start.
Is the compressor motor running.If no check starter/overload relay. The relay is a small usually black cube shaped electrical part plugged into the compressor or wired to it nearby. It may appear burnt or rattle when shaken if it's bad. The two connections should show continuity with an amp meter. If it's good then it's most likely the compressor causing the problem.
Check to see if the condenser fan at the back underneath near the compressor is running. If no check fan.

Are the condenser coils near there warm or room temp. should be warm



Is the evaporator fan in the freezer running. It blows cold air into the fridge side through a damper in the wall between the freezer and fridge. Make sure the damper is open.

Below the evaporator fan is the evaporator coils. Remove the back cover in the freezer to observe the frost pattern. Light frost everywhere(NORMAL) or a partial pattern of ice(LOW ON FREON) or nothing(LOW FREON OR COMPRESSOR PROBLEM).
If it's iced up really heavy you have an auto defrost problem. Melt the ice with a hairdryer and check the defrost system.

Jul 28, 2011 | Samsung RFG299AARS Stainless Steel (285 cu...

1 Answer

Is it normal for warm air to blow out of the fan at the top of a side by side sub zero. Its over 20 years old and we recently had the compressor replaced on the freezer side.


warm air will blow out from the condenser fan which is in the same area as the compressor.
There should be no warm air inside the freezer of fridge.

Jul 22, 2011 | Sub-Zero 650 / O Bottom Freezer...

1 Answer

My A/C stops cooling and blows warm air when vehicle is idiling for an extended period of time such as sitting in traffic. Is there any other solution other than adding an auxiliary fan in front of the...


It appears you know why your ac starts to blow warm air...not enough airflow thru the condenser. A aux fan would definatly fix this but two things you can try. Take compressed air and blow out the condenser but not from the front side... blow from the engine side. Small dust particles will collect inside the condenser over the years and pack in restricting airflow. Hopefully this takes care of it.
The other thing is to have your fan clutch checked it may be acting up on you which will also not pull enough airflow thru the condenser. If all else fails say hello to a electric cooling fan. Good luck!

Feb 08, 2011 | 2002 GMC Yukon Denali

1 Answer

Refrigerator is running but not cooling down


Hello there
Some refrigerators are very quiet and smooth when they operate. If you cannot hear your refrigerator running or feel the compressor vibrating, you must investigate further.
First, try turning the cold control to the "off" position or unplugging the fridge; this will stop the compressor. Do you hear or feel a difference? If so, the compressor was running. WAIT SEVERAL MINUTESat leasst 10 minutes before turning the compressor back on for your diagnostic checks.

If you perform the above test and do not feel a difference, try "listening with a screwdriver." Access the compressor by opening the back panel and place the metal end of a long screwdriver against the compressor and your ear against the plastic end of the screwdriver. You should hear the compressor running. If you are still unsure and you own an amp meter test the current draw of the compressor at the compressor leads. If the compressor is running, it should draw about 6 amps.
If your compressor is running and your refrigerator is warm in both compartments (or not as cold as usual, i.e. chilly but meats are thawing,) first check your CONTROLS. You never know if your kids got in there and messed around with them. Set them on mid-range settings. .
Inside either the freezer or refrigerator compartment you will generally find at least two dial type controls.
One of them, called the cold control, is an electric switch that starts and stops the compressor based on the temperature that it senses inside the compartment.
The other dial is an air door that controls the small amount of air that passes to the food compartment while the evaporator fan is running.
Next, check your condenser and condenser fan.
type condenser mount may be used on bottom-freezer, top-freezer or side-by-side units.
condenser has no condenser fan. Air flows over it by convection; the warm air rises and is replaced by cooler air from below. Some of these condensers are covered by a metal plate.
bottom-mounted condensers come in many configurations. Most look like a radiator or grille beneath the fridge, behind the kickplate. They are accessible for cleaning through the bottom front of the refrigerator. A condenser fan moves air across these condensers.
If you have a back-condenser refrigerator, make sure that nothing has fallen behind your fridge that might block the airflow.
If you have a bottom condenser, remove the baseplate (kickplate) from the bottom front of the refrigerator and look beneath it with a powerful flashlight. If you have kids or dogs or if your clothes dryer is installed nearby, you are a prime candidate to have a blocked condenser. i will post more in the next post

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1 Answer

Compresor wont start and when it does it cycles on and off


Does the condenser fan come on? I am assuming the evaporator fan (inside) is blowing? The way these units are wired is that the power goes the the inside unit and the controller inside sends power to the compressor and condenser fan. But if the controller detects that the condenser fan is not turning (via no ground return) it will not send power to the compressor. This to protect the compressor. Did you notice it trip a breaker? When it is on, do you have 240 on the unit outside but not 120 to ground from each leg?

Jun 15, 2010 | Sanyo CMH2472 Air Conditioner

2 Answers

It blows cold air for 5 min. and the it blows cool air for 15 min. the room warms up . Why does it stops blowing cold air continuasly???? The thermostat was disconectet on purpose so it coul clow cold air...


See if you can reposition the thermister on the facing of the evaporator coils. That could be it or the thermister might be bad. They don't use copper/mercury sensing bulbs these days. They use these cheap thermisters.

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

May 22, 2010 | LG Heat cool Window Air Conditioner

1 Answer

TRUE GDM 26 merchandiser has sealed lines to the freeon and cant access. The fan blows warm air and all the lights work. It just doesnt cool.The compressor was cleaned only 2Xs in 3 years.


What do you mean the compressor was cleaned. It sounds to me you need to clean out the condenser coil. free it from all dust and debris. + Does the compressor work and what gas is in the system, does the condenser fan work. I'm assuming that when you say the fan works, it is the evaporator fan inside the cabinet working. You will have access the condenser fan either from the front or rear of the unit. The condenser unit is normally extracted from the rear. it should slide out but take care not to kink any of the pipework.

Apr 17, 2010 | True GDM-26 Refrigerator

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