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Our totaline thermostat is only using the fan function when

Hi! Our totaline thermostat is only using the fan function when we turn on the cooling function. No cold air is coming out of any of our vents, and the temperature has moved up to 87 degrees. Please help!

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Tim H.

Lead building engineer

Vocational, Technical or Trade Scho

4,640 satisfied customers
I have cleaned and serviced the DFS36NVC which is located in

I have cleaned and serviced the DFS36NVC which is located in a restaurant. The initial concern was the heater shut off after a few minutes. The pilot and burners and shutters were clogged so it helped a bit. It ran for over a half an hour before shutting off. I replaced the ods assembly. The unit is 8 years old , The owners say there have been no changes as far as making the interior tighter, i.e. fans weather-proofing, etc. but it still shuts off within 20 -30 minutes. gas pressure input 7.5 output 1.8" low 3.45 high. thermopile 550MV . I still think something is starving it for enough air. And it will allow the ODS to do what it is supposed to do. Do you have suggestions what I should do next?

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HVAC Guru

Service Technician

Associate Degree

25,324 satisfied customers
2003 York 3 1/2 ton heat and air unit. the fan kicks off

2003 York 3 1/2 ton heat and air unit. the fan kicks off after about five minutes but the condenser and unit continues to run. the fan over the condenser is the one stopping. we tried everything, what could possibly be causing it to kick off. the motor continues to hums and is very hot.

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BillyHvac

Journeyman Service Technician

State Licensed Mechanical Contractor

11,638 satisfied customers
I have a 7900-7541/A Type 1C26-118 forced air furnace and

I have a Coleman 7900-7541/A Type 1C26-118 forced air furnace and central air. The air worked two years ago Ana has sat without being used until today. I switched the breaker and switched the thermostat to air. The outside unit comes on but air is not coming into the house. The thermostat clicks at the inside temp of 83 degrees. I had to adjust the dial inside the thermostat during the winter to keep the temp in the house above 60.

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HVAC Guru

Service Technician

Associate Degree

25,324 satisfied customers
We bought a house and it has central air. I never had a

We bought a house and it has central air. I never had a central air unit before and we bought his house during the winter. I know this has the central air unit outside but it also has air exchangers in the attic. How do I start up the system? I assume it is just a matter of taking off the covers from the outside unit (the previous owners covered them before winter). Then I just flip the thermostat to cool? Do I need to do anything in the attic to the air exchangers or are they typically all tied in together? Any other tips would be great too .

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Rick

Owner

23,612 satisfied customers
My central air unit/furnace's fan continously runs. The

HiMy central air unit/furnace's fan continously runs. The thermostat is only a year old. Someone told me it was probably the thermostat. Can you help me?

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Airheatman

Heating & Air Conditioning Contractor

6 years college

9,768 satisfied customers
I have a Miller M1MB 090A , Everything works good , but my A

I have a Miller M1MB 090A , Everything works good , but my A coil freezes up and stops the cool air from blowing thru my vents almost all the way , my A coil is clean. I would appreciate your help.. It runs a long time but does bring down the room temperature until it freezes up.

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Airheatman

Heating & Air Conditioning Contractor

6 years college

9,768 satisfied customers
My ComfortMaker Central air unit is not producing cold air.

My ComfortMaker Central air unit is not producing cold air. The fan outside sounds like it is trying to kick on but the fan doesn't spin. I had the thermostat replaced in SeptemberJA: Sometimes HVAC issues that that you think will be really complicated end up being easy to fix. The HVAC Technician I'm going to connect you with knows all the tricks and shortcuts. Tell me a bit more about what's going on so we can help you best.Customer: The motor sound the unit makes as it kicks on is still there and air blows through the house but it isn't cold and the fan stays stationary. I have checked for any obstructions but the fan is clear of any.JA: Is there anything else the HVAC Technician should be aware of?Customer: The heater wasn't working over the winter so I called a technician and he replaced the thermostat. That fixed the issue with the heater.JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the HVAC Technician about your situation and then connect you two.

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Airheatman

Heating & Air Conditioning Contractor

6 years college

9,768 satisfied customers
I have a TCJD24S41S3A central air unit. The air will not

Hey, i have a Coleman TCJD24S41S3A central air unit. The air will not blow cool. Upon checking the outside condenser unit, i see the fan will not turn on. No circuits tripped, and it receives power just fine. Since i have 2 of these units and the other one is working, i was able to swap over the contactor and capacitor just to eliminate them being the issue. The working unit still runs just fine with the broken unit's parts so it must be something with the fan itself. The motor perhaps??

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Kcrand36

Technician/Owner

Vocational, Technical or Trade School

144 satisfied customers
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