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I'm replacing a thermostat in my new home and have a

Hello I'm replacing a thermostat in my new home and have a questionJA: Just to clarify, do you think this is a larger HVAC problem, or something specific to the thermostat?Customer: thermostatJA: Do you plan on doing the work yourself?Customer: yesJA: Anything else we should know to help you best?Customer: Replacing a Honeywell thermostat with an Ecobee thermostat

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BillyHvac

Journeyman Service Technician

State Licensed Mechanical Contractor

12,376 satisfied customers
I have a Trane 4TEE3F40B1000BA air handler with a BAYHTR1408

I have a Trane 4TEE3F40B1000BA air handler with a BAYHTR1408 heater. I'm trying to install a smart thermostat.There is an orange wire coming from the O connection in the air unit that was connected to the Rc in my old thermostat (C wire not connected). The odd thing is that there was also a jumper from the R on my old thermostat to Rc with the red wire connected to the R.When I install the new smart thermostat, the thermostat will not turn on (power up) using that same configuration. If I omit the O wire, the thermostat turns on (powers up), but only hot air will come out of the unit.The thermostat customer support says this is because the O wire is coming from the "cooling system", but the C wire (Blue wire from the unit) is coming from the "heating system", causing an incomplete circuit. I have no idea what this means given all the wires connect to the same panel on the air handler, then to circuit brd, then fan. Hi ideas?

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Brian HVAC Guy

HVAC/R Consultant

High School

1,620 satisfied customers
I have a brand new trane heat pump that was just installed

I have a brand new trane heat pump that was just installed yesterday. This is a regular heat pump with electric emergency heat backup. The unit powers up fine, thermostat calls for cooling, the unit kicks on and starts cooling. Approx 10 min later, the outside unit shuts off, and the inside unit continues to run - eventually just blowing hot air around...thermostats still calling for cool air, unit still sees the call for cool air (green LED blinks 3 times).If im reading the cheat sheet correctly, the red error LED is flashing 6 times indicating a "Gas Temperature Sensor Out of Range". Would this sensor cause this issue?

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airheatman

Heating & Air Conditioning Contractor

6 years college

11,126 satisfied customers
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

4,658 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

27,966 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

12,376 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

27,966 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

Supervisor

26,392 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

11,126 satisfied customers
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