HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Related HVAC Questions
I have trane XL80. I can get it to start and get up to temp,
I have trane XL80. I can get it to start and get up to temp, then shut off. But now it won't come back on, board says its pressure switch error. The fan spins freely, I checked the tubes to the pressu… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a Trane XR80 that is an air conditioner and heater
I have a Trane XR80 that is an air conditioner and heater unit. The trouble I am having is the unit will run in air conditioning mode or fan only mode and then shut off. It then will not start. After … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
I have a new central A/C unit that came with the Honeywell
I have a new central A/C unit that came with the Honeywell PRO 4000 digital thermostat. Once the inside temperature reaches the set A/C temperature it will sometimes turn off. Yesterday with these hot… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
T stat rth 3100c seems to opperate in heat cycle ,,set @ 70
t stat rth 3100c seems to opperate in heat cycle ,,set @ 70 OK..room heats up to 70 fan seems to run forever..with statt satisfied the fan continues to run infinity....set the statt down 2 degrees and… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
The recirc fan shuts off any time there is a call (when the
the recirc fan shuts off any time there is a call for heat (when the purge blower starts) and briefly again after the tstat is satisfied. I would like the recirc fan to operate constantly, just changi… read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
I have an old tempstar furnace that has a fan/limit switch.
I have an old tempstar furnace that has a fan/limit switch. When heat is called for, the burners ignite, the fan comes on at the proper temperature, and the burners will run for about 5 minutes until … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I recently installed the Honeywell 7-Day Programmable WiFi
I recently installed the Honeywell 7-Day Programmable WiFi thermostat and it appears to be working correctly, however, the blower does not seem to shut off once it reaches the desired temperature. If … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
I have a carrier 58sta/stx furnace. The blower fan runs constantly.
I have a carrier 58sta/stx furnace. The blower fan runs constantly. The fan switch on the thermostat is set to auto and even if I turn it to off the fan continues to run. When the thermostat does call… read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
My heater works good at times, But of late will not shut off
My heater works good at times, But of late will not shut off after the cycle...heats up, blows good, but most times doesn't shut down the circulating fan, after the cycle....usually have to through ma… read more
R G
R G
44 satisfied customers
I have a robert shaw 300-252 thermostat an I tried adding a
I have a robert shaw 300-252 thermostat an I tried adding a de-humidistat (honeywell IAQ de-humidify contacts) in series with the yellow wire. When the humidity is below the set point the compressor s… read more
cmcdonald51206
cmcdonald51206
MANAGER
High School or GED
14 satisfied customers
I have a LP gas furnace in a mobile home, model CMF 80-PG CONV,
I have a LP gas furnace in a mobile home, model CMF 80-PG CONV, Robertshaw electronic thermostat. Problem: Furnace shutdown last night. I opened the door on the furnace pulled on switch and furnace tu… read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
Hi, My blower fan motor continues to run, at a slower speed,
Hi, My blower fan motor continues to run, at a slower speed, even though the thermostat has reached temperature and the outside a/c units has turned off. The blower never turns off, what could it be. … read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
How to set thermostat for heat in a combination A/C and heating
How to set thermostat for heat in a combination A/C and heating unit. No problem with A/C setting...When I set for heat, doesn't recognize heat setting and continues to heat/run beyond the set tempera… read more
M Oglesby
M Oglesby
Vocational, Technical or Trade Scho
2,010 satisfied customers
I have an IF85CA-0471 thermostat installed on my new geo thermal
I have an IF85CA-0471 thermostat installed on my new geo thermal system . The system runs for hours after reaching the set temperature. Occasionally it will turn off when the outside temperature is ar… read more
Rick Mather
Rick Mather
HVAC Technician
Vocational, Technical or Trade Scho
3,133 satisfied customers
Hello. I have a Honeywell T8611R1141 Chromotherm III circa
Hello. I have a Honeywell T8611R1141 Chromotherm III circa 1997. It runs a heatpump for A/C under the Cool setting, and the Heatpump under the heat setting with all the 4 time setbacks ust fine. I alr… read more
Mark Henley
Mark Henley
HVAC Controls DDC
3,209 satisfied customers
turned heater on and now it wont go off. It is constantly running
turned heater on and now it wont go off. It is constantly running even after the temp on the thermostat is reached and the fan shuts off. It is electric and i have to flip the breaker to turn it off. … read more
ComfortZone
ComfortZone
Associate Degree
485 satisfied customers
I have a forced hot air, gas fired furnace controlled by an
I have a forced hot air, gas fired furnace controlled by an analog thermostat, like the one posted on your web-page. When I set the temperature above what the room is at expecting the heater to come o… read more
Kenton Guidry
Kenton Guidry
HVAC Technician
Vocational, Technical or Trade Scho
963 satisfied customers
I recently had a problem with my standing pilot on my york
I recently had a problem with my standing pilot on my york furnace blowing out do to backdraft. I had a tech come in and install a new honeywell electronic ignition and a new fan limit swith. since th… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future.

JimmyBagley, IA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Phil

Phil

Mechanical Engineer

7,426 satisfied customers

Retired HVAC/ Electrical & Boiler contractor. Industrial

Rick Mather

Rick Mather

HVAC Technician

3,133 satisfied customers

35 years experience, HVAC

Matthew

Matthew

HVAC Technician

2,014 satisfied customers

14 years experience in the HVAC field of service, installation, Manual J & D calculations

Brian HVAC Guy

Brian HVAC Guy

HVAC Technician

1,024 satisfied customers

I have been an HVAC/R mechanic/technician for 30+ years.

Kenton Guidry

Kenton Guidry

HVAC Technician

963 satisfied customers

12 years install/service experience.

Rick Ridley

Rick Ridley

UK Heating Engineer

871 satisfied customers

Retired But have had 30 years on the tools, Ex CORGI

Tom

Tom

HVAC Technician

770 satisfied customers

16+yrs HVAC/R service. Residential Commerical Industrial

< Previous | Next >

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x