HVAC

Have HVAC Questions? Ask an HVAC Expert for Answers

Ask an Expert,
Get an Answer ASAP!

HVAC

You helped me last night and the heat quickly worked great

Customer Question
Hi again! You helped me...
Hi again! You helped me last night and the heat quickly worked great throughout the night! Came home this afternoon and itsdoing the same thing.. cycling on and off..I am so frustrated., I'm a first time homeowner.. ( have only been here two months) and have never had to encounter issues like this before..
Submitted: 1 year ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Answered in 3 minutes by:
10/27/2016
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22,764
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Verified

Hello,

My name is ***** ***** I will do my best to assist you. I am looking over your question now and will respond shortly.

Ask Your Own HVAC Question
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

was this were you cleaned the sensor rod with steel wool?

Ask Your Own HVAC Question
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

if so.....this time you would need to use a vacuum attachment and clean out the burners and tap them sharply to get any rust out....sounds like the issue is flame getting to the rod in time...

I am going offline but will be back online in aprox 30 minutes.

Ask Your Own HVAC Question
Customer reply replied 1 year ago
Ok.. I will clean and see what it does from there
Customer reply replied 1 year ago
I did what you said.. and same thing..did I do something wrong? Did I put the sensor rod back in wrong? It worked fine up until this afternoon??
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

DO YOU GET FLAME FOR 3 SECONDS

Ask Your Own HVAC Question
Customer reply replied 1 year ago
I can't see much but I do t think I got any flame
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

during the ignitor glow...watch and see if flame lights all across..it must hit that metal rod in 3 seconds

Ask Your Own HVAC Question
Customer reply replied 1 year ago
The metal rod that I cleaned? Correct?
Customer reply replied 1 year ago
When I put the metal rod back in.. it's shaped like an L.. it goes towards the left.. but the burners are at the right? Did I reinstall correctly?
Customer reply replied 1 year ago
I see no glow at all., fan runs for about 20 seconds.. then shuts off
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

ok put rod so it is in front of the burner...

do you still get the same code with light blinking?

Ask Your Own HVAC Question
Customer reply replied 1 year ago
Same code yes. And there are 3 burners from what I can tell and the rod is in front of it
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

was the last couple days the first time furnace has run this season?

Ask Your Own HVAC Question
Customer reply replied 1 year ago
before that I don't know because I just bought the house 2. Months ago
Customer reply replied 1 year ago
It worked fine after I cleaned the sensor last night like you said. And now nothing
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

ok....do you know what the gas valve is?...the gas pipe comes into the side of the furnace and then goes into a blocky looking gas valve and then pipe comes out other side and goes to burner...

Ask Your Own HVAC Question
Customer reply replied 1 year ago
I think. There is an on/ off switch on it?
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

correct...hold your hand on that...start furnace...then tell me if you feel that valve click within 60 seconds

Ask Your Own HVAC Question
Customer reply replied 1 year ago
It clicked twice as soon as I turned it on
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

I see you said it was 3 blinks now?

So the exhaust fan starts....then stops after 20-30 seconds?

Ask Your Own HVAC Question
Customer reply replied 1 year ago
Correct
Customer reply replied 1 year ago
It was 3 blinks last night too
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

do you still have the pics available so I can point out some other items for you?

Ask Your Own HVAC Question
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

ok,

the vent pipe that carries the exhaust outside...is it plastic pipe out the side of the house?

do you have a shop vacuum?

Ask Your Own HVAC Question
Customer reply replied 1 year ago
I would guess its plastic ..but its dark and rainy and windy out side at the moment .. when I locate it tmrw.. what should or could I do to get this working again?
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

if you have time I want to do another test first...

Ask Your Own HVAC Question
Customer reply replied 1 year ago
if I let this go tonight, can I recontavt you tmrw after I get off work?
Customer reply replied 1 year ago
I have time right now.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

ok see this pic

remove the 2 wires...

get a small nail that fits into the little connector on the end of the wire.

Hold the 2 wires apart

start furnace

as soon as the exhaust fan starts connect the 2 wires by sticking the ends of the nail, staple or paperclip into the ends of the wires thus connecting them.

We do this AFTER the exhaust starts.

Tell me what happens after this test

Ask Your Own HVAC Question
Customer reply replied 1 year ago
Ok gimme a sec
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

standing by....you are certainly getting heating 101 the last couple days..

Ask Your Own HVAC Question
Customer reply replied 1 year ago
Right?! Lol.. maybe I should change jobs
Customer reply replied 1 year ago
Omg!! It's on!!
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

ok take wires apart and I will bring you up to speed..

Ask Your Own HVAC Question
Customer reply replied 1 year ago
Ok
Customer reply replied 1 year ago
Is it bad??
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

This means there is:

Air restriction in the vent pipe..nest, toy etc..

Drain line from furnace plugged. You will see a drain come out of the furnace and go to a drain or pump..

Use the shop vacuum to clear the plastic pipe...and to suck the drain line clear.

The air circulates through the furnace when that fan kicks on...anything that impedes the flow affects the pressure switch, burners etc.

So now we know the flame sensor is clean...now we clean out the vent pipe and drain...

This is good news...just a pain..

Billy

Ask Your Own HVAC Question
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

sounds like the furnace sat dormant for a while....

Ask Your Own HVAC Question
Customer reply replied 1 year ago
Do., vent pipe outside., .. the pipe that drains in the floor.. use a shop vac on those tmrw? And it did sit dormant.. it was a warm winter here last year.. so probably didn't use it much., but do you think after those things I do it MAY be ok?
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

yes...these are basic things that happen when a furnace sits for extended periods unused....especially the vent pipe being obstructed as it is a perfect spot for bird or rodent nest....they leave when the furnace starts but the nest remains..

I am confident once you have these things cleared you will be ok.

Ask Your Own HVAC Question
Customer reply replied 1 year ago
Ok.. I will do this tmrw after work! Can I leave this open tho in case I have any more questions?
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

certainly....just do not respond to this message...or the system forces a response from me...just hold this until tomorrow after you find out how it goes...

Ask Your Own HVAC Question
Ask BillyHvac Your Own Question
BillyHvac
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22,764
22,764 Satisfied Customers
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics

BillyHvac 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

6,730 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 an Englander MDL 13-NCH 6" pipe. I have always been
I have an Englander MDL 13-NCH 6" pipe. I have always been confused about the connection on the top of the stove to the black pipe. It doesn't seem to fit tight inside it and I get some blow back smok… read more
Paul the Plumber
Paul the Plumber
Vocational, Technical or Trade Scho
21 satisfied customers
I have a electric furnace. The heating elements come on but
I have a coleman electric furnace. The heating elements come on but the fan does not run. The fan runs when you run it manually or with the A/C turned on. What sencer needs changed? … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
Our pellet stove model number 045086 keeps shutting off
our pellet stove model number 045086 keeps shutting off after 20 minutes to a half hour power just stops? … read more
Webb-Guy
Webb-Guy
tech.
73 satisfied customers
Having a problem with our fireplace... looking for some
HI, having a problem with our fireplace... looking for some assistance in troubleshooting … read more
Iohn Keffer
Iohn Keffer
HVAC Tech
Associate Degree
27 satisfied customers
I purchased a RTH2300B thermostat I have only 2 wires coming
I purchased a RTH2300B thermostat I have only 2 wires coming from old thermostat blue and white not sure how to connect . don't trust colors … read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
22,764 satisfied customers
Im having trouble switching my thermostat to heat i have a
Hi, Im having trouble switching my thermostat to heat i have a hunter thermostat model 44860 … read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,080 satisfied customers
I have a Payne furnace model #PG8MAA that seems to have lost
I have a Payne furnace model #PG8MAA that seems to have lost power. The blinking light is off, and auto pilot light does not light the pilot light. … read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
Goodman two stage gas furnace, 3 years old, currently is
goodman two stage gas furnace, 3 years old, currently is code in system status code says LO , its firing up but not staying on? … read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
Which symbol on the Friedrich heating/cooling unit is for
Which symbol on the Friedrich heating/cooling unit is for heat? Thank you! … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
My boiler has E04 code but the reset wont work it apears
my boiler has E04 code but the reset wont work it apears that some water may have gotten to the display board … read more
Webb-Guy
Webb-Guy
tech.
73 satisfied customers
My furnace came on at 6:00 am when it was suppose to still
my furnace came on at 6:00 am when it was suppose to still be set at 62. Nothing I did could get it to shut off … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I would like to hook up a New Digital Themostat. Since I
I would like to hook up a New Digital Themostat JA: I'll do all I can to help. How long have you been dealing with this? Customer: Since I woke up this Morning JA: Do you plan on doing the work yourse… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a Honeywell L8148E aquastat that the transformer ran
I have a Honeywell L8148E aquastat that the transformer ran hot on and started leaking oily wax from. … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
Rheem Criterion II. Sometimes doesn't start. Inducer will go
Rheem Criterion II. Sometimes doesn't start. Inducer will go on and off and start sometimes but next time inducer motor will cycle on and off again before it starts … read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
I have a question about refilling my steam boiler. Just
I have a question about refilling my steam boiler JA: I'll do all I can to help. How long have you been dealing with this? Customer: just today JA: Do you plan on doing the work yourself? Customer: ye… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
My lennox heater is not heating. The thermostat is set. I
The thermostat is set. I did not check the filter, but it is only 10 months old and the fan is running, when I just trun on the fan … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
Carrier furnace 58mcb080-20 gas valve will not open... i
carrier furnace 58mcb080-20 gas valve will not open... i confirmed 24 volts going to valve... replaced the valve and same problem... i jumped 24 volts from the transformer and it opens no problem... n… read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
22,764 satisfied customers
I have 30 year old gas furnace (no air conditioner). the
Hi, i have 30 year old bryant gas furnace (no air conditioner). the problem is that the fan doesn't stop. searched internet and learned that mostly the problem is with the fan limit switch. however, i… read more
Webb-Guy
Webb-Guy
tech.
73 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