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My Carrier 38ckc060300 unit has been coming on and off intermittently.

Customer Question
Can you please help?...
My Carrier 38ckc060300 unit has been coming on and off intermittently. Can you please help?
Submitted: 2 years ago.Category: HVAC
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Answered in 5 minutes by:
6/8/2015
HVAC Technician: airheatman, HVAC Technician replied 2 years ago
airheatman
airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 8,523
Experience: Furnace, A/C and heat pump specialist.
Verified
Hello. My name is ***** ***** I'll do my best to help. Let's get started and see what we can do.Is the outdoor cycling on and off while thermostat is calling for COOL and indoor keeps running?
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Customer reply replied 2 years ago
Tim,
My name is***** for attempting to help.
The answer is No. Either the unit comes on, both outside and inside, or it is off.
HVAC Technician: airheatman, HVAC Technician replied 2 years ago
Ok if both are not coming on or are going off, this may be a thermostat issue. First , have you replaced batteries if thermostat has them and next, is the issue consistant enough we can get it to be off when it should be on in order to troubleshoot?
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Customer reply replied 2 years ago
I have just replaced the battery in the thermostat and it continues to not come on.
HVAC Technician: airheatman, HVAC Technician replied 2 years ago
Lets do this. Go to thermostat .Disconnect R Y and G wires and twist them together or connect them using a jumper.If units stay running we know issue is in thermostat. If not we will go a different direction.
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Customer reply replied 2 years ago
OK, give me a couple of minutes
HVAC Technician: airheatman, HVAC Technician replied 2 years ago
Take your time
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Customer reply replied 2 years ago
Hold on. You know that the unit is NOT running. I have not been able to get it to come on today at all, despite being very, very hot outside.
Customer reply replied 2 years ago
BTW, my thermostat has Red, White, Blue and Green wires. There is no Yellow
HVAC Technician: airheatman, HVAC Technician replied 2 years ago
Have to step away for a few minutes but will be right back.Try what I said and see if units come on. If not let me know if you have a volt meter for troubleshooting. Be back shortly.I will open to other experts while gone so you don't have to wait.I suspect the blue is going to Y.. Do this whit whatever color wires go to R, G and Y
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Customer reply replied 2 years ago
OK and I do not have a volt meter
Customer reply replied 2 years ago
OK, done.. There were two Reds. I twisted all four together and nothing happened.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22,766
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Verified
hello,
do you know if the system has a pump to transfer the condensation away?
Is the unit in attic?
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Customer reply replied 2 years ago
I don't know. The unit is outside
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
That is justhalf of the system...I mean the indoor blower
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Customer reply replied 2 years ago
The filter unit is in my garage, alongside of the central heating portion of the unit. That is where I change filters and I tend to get a lot of condensation build up when the unit is on for a couple of hours. But, the unit has not come on all day today.
Customer reply replied 2 years ago
Yes, the indoor blower then is in the garage.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
Thank you...now from the blower unit is a drain pipe...can you tell me where this drains to?
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Customer reply replied 2 years ago
I dont know if I can see it. Let me get a good look and I will let you know.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
Thank you
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Customer reply replied 2 years ago
OK, yes, it was quite easy because the drain comes from the side of the unit. There is some galv pipe, about 1/2" diameter. Then it connects to some flex and then back into galv pipe. On the last bit of galv pipe there is a yellow valve, I guess.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
Is that the drain pipe from ac coil or is that gas pipe into the furnace section? Can you post a picture?
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Customer reply replied 2 years ago
I can snap a pic. Hold on.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
Thank you
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Customer reply replied 2 years ago
Dang, my java script is not letting me add the photo to this website.
Customer reply replied 2 years ago
I am on firefox and I always have probs trying to do that function. If I was on Google Chrome, I would not have the same problem.
Customer reply replied 2 years ago
Is there something you can have me look at to see if it is a drain or a gas line?
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
can you post at a file share site? Tumblr, Flickr, mediafire.com
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Customer reply replied 2 years ago
No need. I can confirm it is a gas line because it goes into the upper portion where the pilot and heater unit is. I cannot see the drain
Customer reply replied 2 years ago
All I can see is the filter unit and the big blower. I cannot see if there is something coming off the back of the blower section, but I don't think there is.
Customer reply replied 2 years ago
The condenser and all the other parts are outside.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
Do you see where the 2 pipes enter the unit that attach it to the outdoor unit?
freon pipes...
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Customer reply replied 2 years ago
I can see a big drain pipe at the bottom of the outside unit. I don't know what freon pipes look like
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
ok...look at outdoor unit...there are 3 things that leave that unit and go into house/garage...1 pipe with black rubber coating...1 pipe the thickness of a sharpie...and a pipe into a shut off box on the side of the house.
see those pipes?
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Customer reply replied 2 years ago
Yes, I def see two of them. One is larger, maybe 5/9" diameter. That one has some black insulator on it, but not the entire thing. The other is smaller in diameter, maybe 1/4" or 3/8". Both of these have little black knobs right before they go into the unit and I can twist these knobs, like they control a valve or something
Customer reply replied 2 years ago
OK, there is a third one. It is a flex, looks like it could be electrical because it is going into some sort of fuze box made by Cutler Hammer
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
now follow those pipes...once there...look 1 foot below them and tell me if you see a drain pipe
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Customer reply replied 2 years ago
I cannot see one foot below them because the unit was mounted on a special slab. One foot below would be underground
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
Not there....you follow them...inside to unit..once you are at the opposite end of those pipes....then you look below by 1 ft
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Customer reply replied 2 years ago
I can't follow them to the inside unit because they go up through an area of the attic that I cannot access.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
You see those pipes go to the blower. The blower is attached to an indoor ac coil...that is where the drain is I refer to. many units have a drain safety switch that cut power to the thermostat if the drain backs up.
If you cannot find where those pipes lead to inside at the blower unit you may have to call for service
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Customer reply replied 2 years ago
OK, I'm getting smarter. I can see where those pipes from the outer unit go into the inner unit. Then about a foot below are a bunch of white pvc pipes. IS that the drain?
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
correct...white pvc is the main type of pipe used for the drain.
Now imagine water draining from the unit down....follow the pipe and tell me what/where it goes
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Customer reply replied 2 years ago
Two pvc pipes are coming out of the unit at a junction box. That junction box has a red sticker on it and it says,
"Caution, coil pressurized. "
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
Now follow to other end
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Customer reply replied 2 years ago
The two pvc go into one pvc and that goes down about another foot or so to a black box with a huge knob on it. That box is made by Beckett Corp. The single pvc pipe going into that is not secured. It just sits at the top opening and I can easily pull it out. There is also a small copper pipe coming off of that Beckett box.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
great...is that box filled with water?
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Customer reply replied 2 years ago
How do I open it?
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
move the larger pipe out od the way...look inside..jiggle the pump...is it heavy with water?
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Customer reply replied 2 years ago
There is water in it. I would not call it full though
Customer reply replied 2 years ago
The box is affixed to the side of the main unit. I can not jiggle it. But, I can see that it is maybe half full when I shine a light down inside the drain from the pvc on the top.
There is also a door on the side and it looks like i can pry that open with a flat screwdriver.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
...pour water in the top hole in box until activates
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Customer reply replied 2 years ago
How will I know that it activates?
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
it will hum and start pumping
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Customer reply replied 2 years ago
OK give me a minute
Customer reply replied 2 years ago
Oh, should i have the ac unit on at the thermostat?
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
standing by
does not matter if ac is on or off
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Customer reply replied 2 years ago
OK, after pouring in 3 1/2 cups of water in it, it started to hum.
Customer reply replied 2 years ago
JUst went back out and it is not humming anymore
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
great....so it appeared to pump out and then shut down?...good.
now try ac from thermostat again..
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Customer reply replied 2 years ago
Yea, filled it up again and it pumped it out in less than 20 seconds. Let me try turning on at the thermo
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
sb
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Customer reply replied 2 years ago
Not coming on. I think I have the wires in the thermostat correctly. They are very tiny and it's difficult to see if they are making a connection under the screws.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
From this point it would take troubleshooting with a meter to go farther.
I apologize but we are at the point where voltage needs to be determined
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Customer reply replied 2 years ago
So I need to call a technician???
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BillyHvac
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22,766
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