Question about Carrier 38CKC036 Air Conditioner

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Ecm motor runs fine in cooling mode and when stat calls for no cooling motor still runs slow and smells as if burning

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Replace motor!

Posted on Apr 23, 2009

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1 Answer

Indoor blower wont run on cool cycle


sounds like a wiring problem. the t-stat fan on position uses high speed on fan as does the call for cool. possibly a bad t-stat.

Apr 08, 2014 | Goodman Heating & Cooling

2 Answers

I have a lennox furnace that woke me up with a burning smell coming through the vents. I went downstairs and checked the furnace and found nothing on fire. Turned thermostat down from 68 to 64 and burning...


Hello
Its possible the motor is going bad,more likely the blower wheel assmebly needs to be cleaned.

Have a look at the blower motor assembly for dust and dirt on and around the blower motor and wheel.Clean it off with a damp rag and a vacum cleaner.
Check the area for any trash or loose stuff that could be causing this smell.

Usually when a motor goes bad it will run for a while then slow down,then stop on thermal overload.

Then when it cools off it will restart.

Feb 10, 2011 | Heating & Cooling

1 Answer

I switched my thermostat to save money but now it is 85 in my house and it constantly is running but it is hot all the time my dad put it in so i know its right what is wrong with it


It may be wired incorrectly. Make sure that the compressor is being called to run when you set the ac to cool. The Green wire to T-stat makes the indoor fan run when you set the T-stat to cool...also the Yellow wire should signal the contactor to engage at the outside condenser and compressor unit. If this is a heat pump system there is usually an orange wire that will signal the reversing valve to move when cool is being called....normally the reversing valve is in the heating position in the event there is a failure to the solenoid that actuates it..thus leaving it to fail in the heat mode to provide heat in winter weather as a default. Make sure the new T-stat accomidates for your units wiring.

Red wire to R (24v supply from transformer)
Green wire to G (indoor fan)
White wire to W (call for heat)
Yellow wire to Y (call for cool)
Blue or Black wire to C (common)
Orange also to Y if not specific to t-stat (calls for reverseing valve in cooling mode)

Oct 13, 2010 | Heating & Cooling

1 Answer

My 2003 keeps throwing a overheated code and i do smell a burning smell but it does show it on the guage i had the computer reset but the same code came back what would cause this


a stuck open t-stat or a failed water pump. if the impeller is broken then you will get no flow and will cause an overheat issue. what is the fault that the ecm throws. if it is cooling system performance good chance its the t-stat. also if your coolant looks very dark you could also have a clogged heater core. if you respond with the fault i can help more. the burning smell could be an oil leak from valve cover gaskets and cam adjuster seals normal concern for your vehicle what is the engine that would also help.

Oct 24, 2009 | 2003 Volkswagen Passat

1 Answer

Air will not come out when turned on smell of burned oil. A/C is also effected


Do this.

1.)At your thermostat...Turn system switch to off position(dont have it in heat,cool, or auto mode).
2.)At your thermostat...put fan switch from auto to on position.
Do you have a indoor fan(is air coming out the small registers in ceiling or floor).
Do you smell "Oil" smell(most likely an electrical smell).

If you have no indoor blower, a bad smell, most likely your indoor blower motor fried, your control box has fried,or a combination of both.

Hopefully it's just a fan motor but the smell should go away after a bit.It shouldnt linger for days.

My guess if it lingers you burnt your transformer from a low side short.

Call a tech.

Jul 29, 2009 | Heating & Cooling

2 Answers

Bad smell from ac unit in my house


does it smell like literally , dirty socks?if so it is dirty sock syndrome, a plague of heat pumps for years. if it smells like an electrical melting or burning of wires then time to call a pro.it could be a weak capacitor or a weak fan motor. if it is dirty sock syndrome then its the microbes that thrive when temps are middle temps and reproduce when temps are hot and cold in intermittent days. hot one day and cold the next equals call for cool then call for heat and hot steam from heated coils cause s bacteria to grow and microbes to spread across coil. when you switch back it causes the smell.if the coil is clean you can spend a chunk of money on sanitizers but best bet is to run it cool for hot weather and hot for cool weather. the transitional periods are what create the smell. avoid semi cool and semi hot periods. this condition is common to acs from all brands . lots of stuff on the internet about dirty sock syndrome

Oct 31, 2008 | Sharp CV-P09FX Air Conditioner

1 Answer

I heard lots of clicking, smelt a vague burning smell, then machine stopped


IT SOUNDS LIKE A PROBLEM WITH THE MOTOR,WIRING, OR TIMER. SOMETIMES THE TIMER MOTOR WILL START CLICKING AFTER IT GETS SOME AGE ON IT. IT IS UNUSUAL FOR THAT TO CAUSE YOUR PROBLEM. THE SLIGHT BURNING SMELL COULD BE THE MOTOR. IT MIGHT HAVE TRIPPED THE OVERLOAD ON THE MOTOR FROM GETTING TOO HOT. AFTER IT HAS COOLED AWHILE, THE OVERLOAD SHOULD RESET ITSELF. YOU MAY WANT TO ADVANCE THE TIMER TO SPIN AND SEE IF IT WILL RUN NOW.

SOME RETAILERS OFFER NO CHARGE ON THE SERVICE CALL IF YOU END UP BUYING A NEW REPLACEMENT APPLIANCE FROM THEM. ASK AROUND.

IF YOU GET THAT DEAL, IT'S TO YOUR ADVANTAGE TO CALL FOR SERVICE. IF HE FIXES IT, YOU HAVE YOUR WASHER READY TO GO, IF NOT, AND YOU BUY A NEW ONE FROM THAT RETAILER, NO CHARGE FOR THE SERVICE CALL.

Apr 04, 2008 | Maytag MAV6300 Top Load Washer

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