HVAC

Have HVAC Questions? Ask an HVAC Expert for Answers

Ask an Expert,
Get an Answer ASAP!

HVAC

The heater will turn on but the blower wont. TO be specific,

Customer Question
The heater will turn...

The heater will turn on but the blower wont.

Contractor's Assistant: I'll do all I can to help. How long have you been dealing with this?

TO be specific, the blower turns on sometimes, but never for very long and the blower works when the heat is tuned off

Contractor's Assistant: Did you double-check the thermostat's settings? And what about the filters?

The filter is brand new, the furnace is less than a year old and the thermostats settings have been checked regularly

Contractor's Assistant: Do you plan on doing the work yourself?

Depends on what the issue is. The AC worked fine all summer and when this has happened before, we just reset the furnace to fix it I assume its some sort of sensor thats the problem but I don't know for sure

Contractor's Assistant: Anything else we should know to help you best?

Not sure. You can ask any questions tho, maybe I can answer something you might think of

Submitted: 2 months ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Answered in 7 minutes by:
12/14/2017
HVAC Technician: airheatman, HVAC Technician replied 2 months ago
airheatman
airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 8,898
Experience: Furnace, A/C and heat pump specialist.
Verified

1.Give me model on furnace

2.Does blower work in FAN ON mode and AC mode?

3.Do burners light and then go out because of no blower in heat mode?

Ask Your Own HVAC Question
Customer reply replied 2 months ago
model #: W92PA0Y01317MSAThe blower works fine for AC and fan only. Its only heat where it doesn't work.Unsure about the burners.
HVAC Technician: airheatman, HVAC Technician replied 2 months ago

Lets go one step at a time.

Call for heat at thermostat and tell me how far in this sequence it goes.

1.Small vent inducer motor comes on

2.Igniter lights

3.Burners light

4.Blower starts

Ask Your Own HVAC Question
Customer reply replied 2 months ago
heat called and I can then hear the furnace doing stuff. Sounds like there is a fan on (likely the vent inducer) but I can't say for sure about the rest. The error on the furnace is H 57 which is a pressure sensor. This was replaced shortly after the unit was installed for doing similar stuff and could be the issue again though what are the chances that its the same piece twice and not something else causing the sensor to blow?
HVAC Technician: airheatman, HVAC Technician replied 2 months ago

Your problem is the draft inducer is not closing the pressure switch.

Below are causes.

1.Bad pressure switch

2.Blocked vent

3.Blocked hose

4.Inducer not pulling sufficient vacuum on switch

Ask Your Own HVAC Question
Customer reply replied 2 months ago
ok so since the sensor was already replaced early in the year (march) I have to assume its not the sensor but one of the other options. When you say blocked vent, do you mean outside or do I have to check the internal tubing? Also what about the host or inducer not pulling, any way to isolate that as the issue? Just trying to figure out what this could be since I think the pressure switch may be indicating another problem rather than being the problem itself.
HVAC Technician: airheatman, HVAC Technician replied 2 months ago

There is a hose between inducer and pressure switch.Carbon in this hose could prevent vacuum.Then there are hoses removing condensate from furnace.Any water standing in these hoses will prevent vacuum

AS for testing inducer vacuum you would need a manometer.

Ask Your Own HVAC Question
Ask airheatman Your Own Question
airheatman
airheatman
airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 8,898
8,898 Satisfied Customers
Experience: Furnace, A/C and heat pump specialist.

airheatman 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

6,938 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

Kenton Guidry

Kenton Guidry

HVAC Technician

963 satisfied customers

12 years install/service experience.

Brian HVAC Guy

Brian HVAC Guy

HVAC Technician

953 satisfied customers

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

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
I have a cg5 boiler for my home. The boiler ignites and runs
I have a cg5 boiler for my home. The boiler ignites and runs for 10 seconds or so, turns off for 1 or 2 seconds and then reignites, that happens over and over again for 30 minutes or so and then shuts… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
Just looking up the error code. Suspecting the pressure
Just looking up the error code. Suspecting the pressure switch. Both lines are clear, and I can blow or apply vacuum to make the switch work, but installed it still doesnt work, and I get the "3" code… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a Mr Heater big maxx converted over to Propane and
I have a Mr Heater big maxx converted over to Propane and ran out of gas with it the other day, I now have the tank refilled and the person who filled the tank ran a leak test and found nothing.No The… read more
Regan Land
Regan Land
General Manager
Vocational, Technical or Trade Scho
508 satisfied customers
My furnace (Carrier) is not coming on. There is power going
My furnace (Carrier) is not coming on. There is power going to the furnace but yet it won't come on. The panel attached to the furnace (Honeywell) indicates a red light for both heat and zone 3. I hav… read more
Bill
Bill
Service Mgr
9 satisfied customers
Just install a taco sr504-4 switching relay, I have a
Just install a taco sr504-4 switching relay, I have a Honeywell electronic aquastat L7224/L7248 on it and the boiler is a buderus g215 and a carlin oil burner. There's something wrong with the wiring … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a rheem rrna model as and gas assisted heat unit. It
Hi I have a rheem rrna model as and gas assisted heat unit. It keeps shutting off after a few minutes … read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
Cooktop fan won't go on, Just recently, Yes, Its a down
Its a down draft and had to buy part from you and install under counter… read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,142 satisfied customers
We have an air handler that moves 27000 cfm with inlet vanes
we have an air handler that moves 27000 cfm with inlet vanes controlled by static. all of a sudden we lose cfm and inlet vanes go to 100% and cfm drops to 20,000 some times less. If we close inlet van… read more
Bill
Bill
Service Mgr
9 satisfied customers
I bought a home with a separate heat/cool syste for the
I bought a home with a separate heat/cool syste for the walkout basement level with 3 main rooms. There is a single return with a 12” round duct and a 20”x20” wall filter. That vent/filter is where I … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have just Reclaimed Liquid from a trane centravac r123
I have just Reclaimed Liquid from a trane centravac r123 chiller removed 232kg chiller has 406kg. When I hook up to Vapour removal the pump trips on HP because it has reached its 10psi limit. This is … read more
Bill
Bill
Service Mgr
9 satisfied customers
Nursing home 10 p-tac it has a trance board no model number
nursing home 10 p-tac it has a trance board no model number how can i find them … read more
airheatman
airheatman
HVAC Technician
8,898 satisfied customers
My weil mclain HE boiler does not fire all the time. Blower
my weil mclain HE boiler does not fire all the time. Blower comes on ignitor glowes and sometimes it lights and sometimes it does not … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
My boiler (forced hot water heating system) has been running
My boiler (forced hot water heating system) has been running when no zones have been calling for heat. Why?… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
Why my heater can't hold the temperature of 130 degrees it
Hi why my heater can't hold the temperature of 130 degrees it was working fine … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a Mendoza seabrook d40 and small explosion in fire
Second opinion] I have a Mendoza seabrook d40 and small explosion in fire box when turns on remote blows out pilot … read more
Bill
Bill
Service Mgr
9 satisfied customers
My thermostat has stopped worked and calls for replacement
My thermostat has stopped worked and calls for replacement of CR2032. I've found it but can't release the plastic to get into it. … read more
Bill
Bill
Service Mgr
9 satisfied customers
My amana refrig threw a breaker switch, but has gone back on
My amana refrig threw a breaker switch, but has gone back on and worked fine since I threw the breaker switch back. It is 13 yrs old. … read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
My ptac unit started this morning not responding to button
my ptac unit started this morning not responding to button changers, its stuck in heat mode, I can't even adjust the temp. I tried unplugging the unit to see if it would reset, it didn't change anythi… read more
Bill
Bill
Service Mgr
9 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