HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

I just noticed that they were six flashes on my Lennix

Customer Question
furnace stating that it's a...
I just noticed that they were six flashes on my Lennix furnace stating that it's a pressure switch lock out. I noticed that the filter is dirty but what else could be the problem?
Submitted: 2 years ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Answered in 25 minutes by:
1/29/2016
HVAC Technician: Daniel Plourde, HVAC Technician replied 2 years ago
Daniel Plourde
Daniel Plourde, HVAC Technician
Category: HVAC
Satisfied Customers: 464
Experience: I've been in the HVAC buisness since 2008 working on residential, commercial, and industrial buildings
Verified

Hi i am dan. I can help you with this. Did you try resetting the power to the furnace and notice if the small combustion blower on the top comes on?

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
Our furnace is set at 73 and within the last few days it
our furnace is set at 73 and within the last few days it stops heating and the temperature goes down to about 65. Then it starts back up and warms up to the 73, after awhile. It did it two mornings in… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
Tim I have an intercity furnace model number: gn1060a012ain.
Hi Tim I have an intercity furnace model number: gn1060a012ain. The problem I would like resolved is that The furnace does not stay on. When I reset the main switch of the furnace it starts working no… read more
hvacexpertjoe
hvacexpertjoe
Electronics Technician
Vocational, Technical or Trade Scho
80 satisfied customers
I have a Trane TUX100c948o3 XR90 furnace It started acting
I have a Trane TUX100c948o3 XR90 furnace It started acting up recently. Heat then no heat. I had the units serviced in Oct for its fall check up. I call the tech out in a snow storm on Sat. He said I … read more
HvacmanSean
HvacmanSean
Owner
HVAC
233 satisfied customers
I have a new goodman furnace, I just replaced the filter,
I have a new goodman furnace, I just replaced the filter, and blower works but will not heat . I get six lights flaching....fuse where is it … read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
My trane XV 95 furnace has a 3 flash code and stopped
My trane XV 95 furnace has a 3 flash code and stopped working. I know its a pressure switch problem but could it have been caused by a dirty air filter and how do I reset it? … read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,974 satisfied customers
My name is ***** *****. Im working on a trane tud080r936a.
My name is ***** *****. Im working on a trane tud080r936a. 1st assement, w1 and w2 are jumped on board.furnace lites on high fire then about 5 seconds it drops to low fire, then flame drops out after … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
Hello, I have a Payne furnace Model PG8JAA/MAA which heats
Hello, I have a Payne furnace Model PG8JAA/MAA which heats a smaller sun room. I replaced the filter last night and now the furnace is blowing luke warm air and not heating the room above 59 degrees. … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
I have a york LX series furnace installed new barely three
I have a york LX series furnace installed new barely three years ago. The three left burners light, then go out. This happens three times and then the furnace times out for 1 hour. I see it has severa… read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
I have a newer nordyne gas furnace that will come on but after
I have a newer nordyne gas furnace that will come on but after it gets to the set temp the flame goes out and the fan keeps blowing until I push the little nickle sized button,it's some kind of limit … read more
warmneighbor
warmneighbor
owner
Vocational, Technical or Trade Scho
9 satisfied customers
My rudd furnace seems to be developing issues that I am not
My rudd furnace seems to be developing issues that I am not sure if I should be concearned with? Example T-stat is set at 70, room temp is indicated to be at 68 system is on heat and auto fan setting.… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
I have a York Gas Furnace model GY9S1000C20DH11G that has a
I have a York Gas Furnace model GY9S1000C20DH11G that has a Fault Code 3. How do you reset the limit switch? Thanks… read more
Kenton Guidry
Kenton Guidry
HVAC Technician
Vocational, Technical or Trade Scho
963 satisfied customers
My furnace is blowing cold air thru its vents and making my
My furnace is blowing cold air thru it's vents and making my house very cold for long periods of time. I have had two different techs come out to my house and both of them have stated they could not l… read more
hvacexpertjoe
hvacexpertjoe
Electronics Technician
Vocational, Technical or Trade Scho
80 satisfied customers
my heater doesnt turn on.. if i set the Fan to ON, the blower
my heater doesn't turn on.. if i set the Fan to ON, the blower turns on, but if I set the Fan to AUTO and the system to HEAT with the desired temp at least 5 degrees above ambient, nothing happens FIX… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
I recently replaced the blower motor in my Coleman furnace.
I recently replaced the blower motor in my Coleman furnace. The furnace worked fine for a fews days but then the auxilary switch needed resetting indicated by four flashes. I would reset the switch an… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
I have a York furnace, it will not fire up with the thermostat.
I have a York furnace, it will not fire up with the thermostat. The LED indicator light flashes once for a system lockout, with the lower cover removed and the system cleared it will restart as normal… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
my Rudd Silhouette II furnace has the same problem every year
my Rudd Silhouette II furnace has the same problem every year when it gets real cold it wont come on until the temp drops to about 63 degrees- I have called numerous HAVC pro's out and they always fix… read more
Matthew
Matthew
HVAC Technician
Bachelor's Degree
2,014 satisfied customers
I have a Ruud Silhouette II Gas Furnace. It will not maintain
I have a Ruud Silhouette II Gas Furnace. It will not maintain temp. It kicks on and blows cool air most of the time. Some times it will blow warm, but it shuts off before the temp. comes up to the the… read more
HVAC_Doug
HVAC_Doug
Vocational, Technical or Trade Scho
My York furnace filter was replaced aftr sensors shut down
My York furnace filter was replaced aftr sensors shut down for clogged filter. How do I reset for a green light. I now have 3 flashing red lites… read more
Robert
Robert
Associate Degree
161 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