Carrier 38CKC036 Air Conditioner - Page 5 - Answered Questions & Fixed issues

Hello, make sure the blower wheel is clean and that it is moving freely, if it feels loose on the motor shaft then you will need to tighten the set screws. If the the blower wheel is hard to turn then the bearings on the motor are going bad and will need to be replaced. I hope some of these tips help.

Hello, the first thing is check if you are getting voltage at the contactor coil contacts on the outside unit, you should be getting 240 volts, If not most likely a breaker is tripped. Next check if you are getting 24volts at the contactor coil, if not either there is a problem with the thermostat or the low volatge wiring. if you are getting voltage but the contactor does not energize the coil on the conatctor is bad and must be replaced.

Many possible reasons. I assume the compressor is running and hopefully is pumping freon as it is supposed too. If it is just noisey and no other problems with unit it could be worn out compressor mounts. if the compressor sounds rattley then it could be getting ready to seize due to internal wear. May be a good time to let a technician take a look. Hope this helps.

Dear friend! It's not lubrication problem. All motors pre-lubricated.Weaken capacitor. Replace capacitor immediately. Don't practice to spin with screw driver. It's not safety.Thanks.

Make sure that the capacitor that was changed is of the same type and rating. If this is low then the fan can flutter off. So make sure the rating of the capacitor is correct , if not replace with a correct type. Make sure that the motor is not jammed, as it might heat and stop. Also the possibility of the motor failing should be checked if the motor is heating to stop- possible fault of the motor.

With this cold weather, -- it is not likely tripping off because it is too hot!

Are you familiar with the history of this unit?-- Like has it tripped in the past during HOT weather?
This might be a clue, that the circuit is really loaded close to its limit--

This leads to the next possibility: That the breaker is getting weak (They do after many hard starting loads!
Now-- If you can get the system to start and run for just a few seconds-- can you put a Clamp around Amp meter on the wires?-- and read the full load current?
How close is this to the rating of the circuit breaker?
Is the breaker, and the wire size marginal?

Another thing to look for, is loose lug screws at the main fuses, and the Main contactors, and the motor leads--- for loose wires result in overheating, which raises the current, and leads to tripping, too.

How long ago was the condenser cleaned-- this leads to high amp draw too.

But the first thing would be to learn more about the age of the Main Breaker, and what the 'normal' run current is for that system.

Mack B

Sounds like a bad heat exchanger. The flame could be coming out, and throwing the Flame roll out limit switch. Could just be limit switches.

obtain the code it flashes on the board next time it goes down and let me know what you got. There are too many variables to guess Id rather hit it right on the head. I will be waitiing for your response. The board is usually located in the blower section of the furnace.

1. Alignment of fixing wrong. 2. Filter/Evaporator coil block 3. Drain pan dust blocked. Drain line blocked outside.

Carrier make model no is 42SD6B the problwm is when the unit is running it run's for only 4 min then it's shuttdown give the error code 3 after 3 min. it's starting automitcally again it trip after 4min giving the error code 3.
So I just want to know what is this code stand for, what precaution should I take to solve this problem.

Some filthy mouth. What is the problem you are having ?

Hello,What exactly knocked out the 2nd fl power?Go in the attic and check the blower unit there it might have fell down fron the roof joists(beams).

dear sir

if fan motor is not working that why your airconditioner is not getting cold. please try to test fan motor by electric tester check continuity on fan motor wire one bye one. if there is all wire have continuity with each other then it,s mean fan motor is ok and problem in other device . if you can do by yourself then try if not then take help to a technician.

hope answer the question
thank you
please vote!

A 3 1/2 TON CONDENSER

Hi,
Your compressor or the start components are bad...
Here is a tip about troubleshooting your air conditioner...
There are many things that can cause your air conditioner not to cool...

Air Conditioner Trouble - Review the Possibilities

heatman101

NO! that unit will NEVER reach 30*f cold.The refergerant used does not run(operate) that cold.

Replace the compressor starting capacitor. This might be the problem. If not then the compressor need to be replaced.

Hi,
The capacitor for the fan motor is bad...change that first and then do the motor if that don't help...

Here is a tip about troubleshooting your air conditioner...
There are many things that can cause your air conditioner not to cool...

Air Conditioner Trouble - Review the Possibilities

heatman101

thats like saying yep and nothing else whats your question if you say its bad replace it please clarify

Hello The new motor sounds HOT wired.It must have one leg connected to the blower relay.If it is off the relay(correctly) ,the relay is stuck/welded and should be replaced.In the blower unit.