Explore answers about Heating System

Nest thermostat, fan will not come on during heating. It

Nest thermostat, fan will not come on during heating. It comes on automatically when cooling and can be manually operated from the thermostat and the Nest app. It just won't come on when I call for heat, causing the temperature not to rise. There was no problem with my old thermostat. What could be causing this?

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Gaztech

Owner

Vocational, Technical or Trade School

906 satisfied customers
Have 2 wire thermostat that i am trying to replace, I think

Have 2 wire thermostat that i am trying to replaceJA: Just to clarify, do you think this is a larger HVAC problem, or something specific to the thermostat?Customer: I think it should be a small one because the heat comes on whenever it want toJA: Do you plan on doing the work yourself?Customer: YesJA: Anything else we should know to help you best?Customer: Yes , why it's only 2 wires insist of 3

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Rick

Supervisor

26,920 satisfied customers
I have a Toyotomi OM-180 that is being used as a boiler for

Hello,JA: Hello. How can we help?Customer: i have a Toyotomi OM-180 that is being used as a boiler for baseboard heat. There is a pump in the system for circulating the hot water that is wired to run all the time. The temp on the unit is set at 130*. The wall thermostat is set at 65*. The unit fires up, runs for about 22 seconds, then shuts down. It starts back up again a few minutes later, and runs for 22 seconds again. It does this non-stop, never running for more than 22 seconds. The temp at the wall thermostat never gets up to 65*. It's like the heat system can't keep up with the outside temperature, but the unit is cycling off. The temp gauge on the outlet side of the unit shows 130*. The inlet fitting seems to be the same temp by touch, though the is no gauge there. The piping to all the baseboard radiators feels warm, as do the radiators. This house is new to me. I am told that this is how the system has always been whenever it gets below about 30* outside; that the unit cannot keep the house warm. Seems to me that if the unit itself is getting up to temp and cycling off, then there is excess heat available that is somehow not getting into the house. Ideas?JA: Did you double-check the thermostat's settings? And what about the filters?Customer: You mean the wall thermostat? Or the one on the unit? Which filters? Air? Fuel? Not sure where the air filter is, if there is one.JA: Do you plan on doing the work yourself?Customer: Yes, as I'm in a remote area of Alaska and d't have another option. I am an aircraft mechanic, but with limited knowledge of HVAC.JA: Anything else we should know to help you best?Customer: I think that's it for now.

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Rick

Supervisor

26,920 satisfied customers
I have a zone air conditioner and heating system. I live in

I have a zone air conditioner and heating system. I live in Houston Texas and have a 3 story townhouse about 2000 square feet....problem is both heating and air conditioning sytems do not heat or cool the first and third floors properly - it appears no air is flowing into the bedroom on the 1st floor but it is flowing into the 1st floor bathroom. There are no other rooms on the 1st floor (except for the garage that is not cooled or heated). The third floor is always hotter when either the heat or air conditioner is on when it is really cold or hot outside (like 30 degrees or 85 degrees trying to heat the house to 70 degrees or cool the house to 75 degrees. I have a maintenance contract and they recommended I get the ducts cleaned, install a bypass duct and get a new heater (it is about 16 years old.) I hardly ever use the heater and was provided no reason to replace it other than it is 16 years old. I have had the evaporator coil replaced 3 times over 16 years and this seems like a lot to me. I had the condenser replaced about 8 years ago. They said a bypass duct would fix the uneven heat/cool problem but my research indicates a zone system should never have one and it is extremely expensive to install. I would like to know who is the best person to look at my system. I think a compete diagnostic should be done to see if the dampers and thermostats are functioning properly. They said there was some mold in and around my unit and is the reason they suggest it be cleaned. Your thoughts?JA: OK. To minimize me, please click the down arrow at the top right corner of this box.Customer: By best person I mean an HVAC service or structural engineerJA: Did you double-check the thermostat's settings? And what about the filters?Customer: I changed the filters after he left which was about 5 weeks ago. I also noticed some black soot on my floors - all three levels 1, 2 and 3.JA: Do you plan on doing the work yourself?Customer: NoJA: Anything else we should know to help you best?Customer: Can't think of anything

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D.E. Anderson

Industrial Refrigeration Service Manager

370 satisfied customers
I am wiring a this same motor. The motor was wired at 240

I am wiring a this same motor. The motor was wired at 240 volts originally but the electrical system was changed to 120/208v. Can this motor be wired to 208volts?JA: I'll do all I can to help. How long have you been dealing with this?Customer: ?JA: What confuses you?Customer: I'm wiring a motor in a new to a new system. This is a new issueJA: Do you plan on doing the work yourself?Customer: yesJA: Anything else we should know to help you best?Customer: no

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gotoman for ac

HVAC Service manager and owner

Associate Degree

5,472 satisfied customers
I can't cancel scheduled settings for example

I can't cancel scheduled settings for example wake,sleep,leave or the temperature will blow cold air while on heatJA: Did you double-check the thermostat's settings? And what about the filters?Customer: Filters arE new and the heat system is workingJA: Do you plan on doing the work yourself?Customer: I am only trying to set the theromstatJA: Anything else we should know to help you best?Customer: I can't get rid of all the scheduled settings

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gotoman for ac

HVAC Service manager and owner

Associate Degree

5,472 satisfied customers
What size is my Trane 2TTR2030A1000AA compressor. How much

Hi there, what size is my Trane 2TTR2030A1000AA compressor. How much would it cost to replace? I got a quote to replace the indoor air handler, which is connected to a water heater (to create a hydronic heating system). Is it worth replacing both the air handler (22 years old) and the compressor (12 years old), as was recommended, or can I just replace the compressor?

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BillyHvac

Journeyman Service Technician

State Licensed Mechanical Contractor

12,506 satisfied customers
My mother has a weather King (Rheem) 90 plus heating system.

My mother has a weather King (Rheem) 90 plus heating system. Recently the furnace started to --as you may say--"short cycle". I checked the thermostat, and as I turned the dial to increase the temp, the unit did not turn on, I pulled off the cover to look at the coil and mercury switch--I did not here it click, nor see a spark when increasing/decreasing the temp settings. I purchased a new Honeywell digital, non programmable thermostat, and everything seemed to work fine.JA: Did you double-check the thermostat's settings? And what about the filters?Customer: The filter was just cleaned two weeks ago. The thermostat was set at 62 degrees, and the internal house temp shows 62 degrees, but the furnace cycles about 4x per hour--is that normal? I have a wood stove at my home, so I would not be cognizant of cycle patterns,JA: Do you plan on doing the work yourself?Customer: If it is the scope of not needing expert outside servicesJA: Anything else we should know to help you best?Customer: My mom recently had water in her basement due to a faulty sump pump--the water did not get to a level high enough to reach the furnace, but there was quite a bit of moisture in the basement

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Rick

Supervisor

26,920 satisfied customers
I have a HVAC system, one unit in the attic, one condensor

I have a HVAC system, one unit in the attic, one condensor unit outside on the side of the house. Recently I noticed water pooling around the base pad of the condensor unit. What is causing water to pool there and what can I do to fix it. I do not recall this happening before. Also the temperature is around 45 to 60 degrees fahrenheit outside and i use the hvac to heat my home.

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548 satisfied customers
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