HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Furnane goes on few minutes then cuts off then later it ran…

Customer Question
Furnane goes on for a...
Furnane goes on for a few minutes then cuts off then later it ran regularly for hours.
Submitted: 2 years ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Answered in 1 minute by:
2/12/2016
HVAC Technician: Tim H., HVAC Professional replied 2 years ago
Tim H.
Tim H., HVAC Professional
Category: HVAC
Satisfied Customers: 3,972
Experience: Experienced in all aspects of HVAC, both residential and commercial.
Verified

Hi, I'm Tim and I'm an HVAC expert here to assist you with your questions. Please provide all information I request as it makes it more difficult to troubleshoot something when I'm not there onsite. Essentially, you become my eyes and ears. Thanks for the opportunity to help. At the end of our dialog, you will have a chance to rate my service, but please wait until we are finished and you're satisfied you have all the information you need. Please be patient as many times we work with several customers at once.

Can I get full model number of furnace? That model is the model of your coil. Do you get an error flash code when it shuts down?

Ask Your Own HVAC Question
Customer reply replied 2 years ago
Lennox
Model: C33 36B 2F 2
NOT SURE WHAT ELSE YOUR LOOKING FOR.
HVAC Technician: Tim H., HVAC Professional replied 2 years ago

C33 is the model of your coil, NOT your furnace. Also, most modern furnaces have an error flash code when there's a problem. This can be seen in the lower door, small window.

Ask Your Own HVAC Question
Customer reply replied 2 years ago
2 blinking green lights.
HVAC Technician: Tim H., HVAC Professional replied 2 years ago

OK, that won't help me without the furnace model number, unfortunately

Ask Your Own HVAC Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a hvac technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Phil Your Own Question
Phil
Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 7,426
7,426 Satisfied Customers
Experience: Retired HVAC/ Electrical & Boiler contractor. Industrial

Phil is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

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 >

Related HVAC Questions
Have a Honeywell T8001C thermostat. When I raise thermostat
Have a Honeywell T8001C thermostat. When I raise thermostat for heat blower turns on right away and turns off a few minutes later. Burners should come on first, then fan should turn on after a few min… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
I live in Florida. I have a Rheem AC about 5 years old. I
I live in Florida. I have a Rheem AC about 5 years old. I keep AC at 72. When I go to work I set thermostat to 77 or 78 and drop it to 72 when I come home. House cools off in 15 to 30 minutes. For the… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
Problem. I have a Rudd Achiiever, Series 5, Super Quite 80.
Problem. I have a Rudd Achiiever, Series 5, Super Quite 80. I programed the Heater unit to activated for winter. When energized to turn on the heat, The primary blower comes to activate starting. A fe… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
My Rheem has an intermittent fan problem. On A/C, the system
My Rheem has an intermittent fan problem. On A/C, the system will start normally but then, after a few minutes, the blower fan will stop while the A/C compressor continues to run. The thermostat tempe… read more
Tim H.
Tim H.
HVAC Professional
3,972 satisfied customers
I have ruud achiever 90 plus. it starts up, lights, then runs
I have ruud achiever 90 plus. it starts up, lights, then runs for less than a minute and cuts out. It does this repeatedly never really warming the house. Why is it doing this?… read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
I have a Heatilator GCDC80 and was having problems getting
I have a Heatilator GCDC80 and was having problems getting the burner to light. There would be a "Whumpf" and then it would light. I checked the wall switch and bypassed it with no luck. I took a read… read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
becket honeywell r7184b have to start furnace by pushing red
becket honeywell r7184b have to start furnace by pushing red button.it will run then shut off again with light flashing half second intervals.… read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
Furnace fires up and the blower starts up for about 5 seconds
Furnace fires up and the blower starts up for about 5 seconds then the blower cuts out. the Flames keep burning. About a Minute later the blower kicks back on for a few seconds then shuts off again. W… read more
servtech50
servtech50
HVAC/R service tech
216 satisfied customers
I have an Armstrong furnace that does not stay running (heating)
I have an Armstrong furnace that does not stay running (heating) when heat is called for. Model GUH80E 075D14-1A Serial 8499F2551B I have always had the programmable thermostat set to run the fan all … read more
hvac-technician
hvac-technician
Service Manager
Vocational, Technical or Trade Scho
62 satisfied customers
We have an old, 1970, Day and Night Gas Furnace that has developed
We have an old, 1970, Day and Night Gas Furnace that has developed a problem in the last few months of use (the end of last winter and start of this winter). At the end of each heating cycle, the fan … read more
A-1 Tech
A-1 Tech
Service Manager
Vocational, Technical or Trade Scho
361 satisfied customers
I installed a used takagi tankless unit last week and now the
I installed a used takagi tankless unit last week and now the unit runs paoperly for about 10 minutes and then quits putting out hot water. If I wait about 5 minutes the unit will put out hot water ag… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
Janitrol model gmp 075-4, the condensing unit comes on , shortly
Janitrol model gmp 075-4, the condensing unit comes on , shortly after that the fan turns on but cuts off after a short time without cooling to the thermostat preset. The fan does not look to be locki… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
we live in FL & have a 5 ton Traine XL19I with 2 compressors.
we live in FL & have a 5 ton Traine XL19I with 2 compressors. Around 1-3pm daily it seems to stop cooling and warm air blows out. It then recovers later. Is this normal? Also, what would you recommend… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
my furnane sometime ignitor on and get heat. But most of the
my furnane sometime ignitor on and get heat. But most of the time ignitor is not turn on, rarely on. I already replace a new ignitor and new flame sensor. When the heat on, sometime it doesn't meet te… read more
M Oglesby
M Oglesby
Vocational, Technical or Trade Scho
2,010 satisfied customers
My coleman evcon furnace is cycling two maybe three times and
My coleman evcon furnace is cycling two maybe three times and shutting down,I have to continue to reset it from the fduse box it comes back on and then shuts down.… read more
HVAC_Doug
HVAC_Doug
Vocational, Technical or Trade Scho
I have an armstrong air unit that the combustion blower comes
I have an armstrong air unit that the combustion blower comes on regularly and the heater does not. Sometime it takes 1/2 hour before the heater lights and blowes hot air. This unit was installed in 1… read more
coolman1973
coolman1973
AC/Heat Tech
Vocational, Technical or Trade Scho
162 satisfied customers
My furnace prematurely shuts off. The ignition sparks and
My furnace prematurely shuts off. The ignition sparks and lights the pilot. A few moments later the burners all light. A few moments later the blower starts. The furnace then runs for about 3 minutes … read more
coolman1973
coolman1973
AC/Heat Tech
Vocational, Technical or Trade Scho
162 satisfied customers
I have a Honeywell CM921 wireless programmable stat and I have
I have a Honeywell CM921 wireless programmable stat and I have noticed that when you configure the heating cycle rate and minimum on time ( I have set mine to 6 cycles per hour & 1 minute min on time … read more
Rick Mather
Rick Mather
HVAC Technician
Vocational, Technical or Trade Scho
3,133 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.

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